PARTE A (1)DO-01A Plan and conduct a passage - Celestial NavigationQuestion CodeQuestionSETS1TN3IS7EWLSN1.The value of the "equation of time" is...(A)between zero and about 30 minutes.(B)dependent upon the observer's longitude.(C)dependent upon the observer's latitude.>(D)between zero and about 17 minutes.SETS1RAKH1LHA8N2.The true zenith distance of the Sun when on the observer's meridian bearing South is 31 30' and the declination is 16 25'.4 N. Calculate the observer's latitude.(A)15 04.6' S(B)15 04.6' N(C)16 25.4' N>(D)47 55.4' NSETS1AZP12FD9TZN3.Which of the statements listed about the first point of Aries is true?(A)It rotates on the celestial sphere once each year.(B)It moves slowly eastwards.(C)It is a fixed point in space.>(D)It moves slowly westwards.SETS144A4NH6OP4N4.Stars tabulated in the nautical almanac which have a negative magnitude (e.g.-1.4)...(A)are only visible in the southern hemisphere.(B)are only visible with the aid of the sextant telescope.>(C)are very bright.(D)should only be used for navigation in exceptional circumstances.SETS1LLH21JAYE9N5.The true zenith distance of the Sun when on the observer's meridian bearing North is 39 14.3' and the declination is 17 22'.1 N. Calculate the observer's latitude.(A)56 36.4' N(B)24 52.2' S>(C)21 52.2' S(D)56 36.4' SSETS1F64FJPZ7E0N6.At the summer solstice, the altitude of the sun at noon to an observer at the pole would (A)0(B)66.5>(C)23.5(D)90SETS1F3TKJ93S53N7.A first observation of the Sun was taken at 0915 Local Time. If the vessel is steaming at 16 knots, how far should the position line be moved along the couse made good to find the position at 1200?(A)50 miles>(B)44 miles(C)48 miles(D)51 milesSETS1DU87OZYP2N8.What do you call the error in the observed altitude of the sun, which results from the observer being on the surface of the earth not at its centre?>(A)Parallax.(B)Semi-diameter.(C)Dip.(D)Refraction.SETS1NE83DQZKJFN9.To an observer in longitude 164E, the LHA of the sun is 26. What is the GHA of the sun?>(A)222(B)190(C)170(D)138SETS1L292PVKRJIN10.The true altitude of Arcturus is 42 28'.4. Find the true zenith distance.>(A)47 31.6'(B)46 31.6'(C)47 36.1'(D)57 31.6'

SETS1R45RRF6RU8N11.The magnitude of a star which can only just be seen with the naked eye on a clear, dark night is...>(A)6th magnitude.(B)4th magnitude.(C)1st magnitude.(D)3rd magnitude.SETS1OYTLXVIJBBN12.What is "side error" on a marine sextant?(A)When the index mirror is not perpendicular to the plane of the sextant.(B)When the telescope collar is not perpendicular to the plane of the sextant.>(C)When the horizon glass/mirror is not perpendicular to the plane of the sextant.(D)When the index mirror and the horizon glass/mirror are not parallel at all times.SETS1N4MBIE31K0N13.If the Azimuth of a body is found to be 222 True, the position line would be drawn through the Intercept Terminal Position in a direction of... (A)042/222>(B)132/312(C)112/292(D)122/322SETS1Q1RL38R57ZN14.To an observer in longitude 172E, the LHA of a star is 315. If the SHA of the star is 036, what is the GHA of Aries?(A)127(B)143(C)091>(D)107SETS1LRAILKLPW4N15.The moon spins on its axis approximately every...>(A)28 days.(B)7 days.(C)1 year.(D)1 day.SETS1AVOJBFJLH9N16.The times of sunrise and sunset are tabulated in the Nautical Almanac. These times are...(A)the LMT when the lower limb is on the visible horizon for an observer at sea level.>(B)the LMT when the upper limb is on the visible horizon for an observer at sea level.(C)the LAT when the upper limb is on the visible horizon for an observer at sea level.(D)the LAT when the lower limb is on the visible horizon for an observer at sea level.SETS1LDBLN0QEEN17.To an observer at the south pole, at the beginning of September...>(A)there will be twilight throughout the day.(B)there will be a period of twilight for a few hours only around noon.(C)the sun will rise for a short period around noon.(D)the sun will be above the horizon throughout the day.SETS1P8C3MAV0UN18.If the GHA of the sun is 173 and the LHA is 358, what is the longitude?>(A)175W(B)5W(C)5E(D)175ESETS1QC8LKM8ATN19.The true zenith distance of the Sun when on the observer's meridian bearing North is 6 57.4' and the declination is 16 25'.4 N. Calculate the observer's latitude.(A)23 22.8' S(B)09 28.0' S>(C)09 28.0' N(D)23 22.8' NSETS11AYXVDXLDJN20.The true zenith distance of the Sun when on the observer's meridian bearing North is 46 23.9' and the declination is 9 15'.0 S. Calculate the observer's latitude.(A)37 08.9' N(B)64 23.2' S>(C)55 38.9' S(D)37 08.9' SSETS1UO0S2N2O1N21.The first point of Aries is the point on the celestial sphere where...(A)the sun crosses the equinoctial when going from north to south.(B)the sun crosses the ecliptic when going from south to north.>(C)the ecliptic cuts the equinoctial on the sun's apparent path from south to north.(D)the prime meridian cuts the equinoctial.

SETS19OPKD003H7N22.If a ship is in 90E longitude and the equation of time is -4 minutes, what is the GMT of noon at the ship?(A)1756(B)1804>(C)O556(D)O604SETS1XJ866JE5RDN23.The moon rotates around the earth approximately every...>(A)28 days.(B)7 days.(C)1 day.(D)1 year.SETS11ZLKXUDGRN24.The true zenith distance of the Sun when on the observer's meridian bearing South is 54 and the declination is 4 S. Calculate the observer's latitude.(A)50 S>(B)50 N(C)58 N(D)58 SSETS159TU610EZ8N25.The true zenith distance of the Sun when on the observer's meridian bearing South is 6 57.4' and the declination is 14 36'.2 S. Calculate the observer's latitude.(A)21 33.6' N(B)21 33.6' S(C)07 38.8' N>(D)07 38.8' SSETS1V91VTWH71N26.What would you adjust in an attempt to eliminate index error of a sextant?(A)The telescope.(B)The tangent screw.>(C)The horizon glass.(D)Nothing; the sextant should be sent ashore for re-calibration.SETS1GKYKLD8AGN27.The sun is at the first point of Aries on the celestial sphere at approximately...(A)21st December.>(B)21st March.(C)21st September.(D)21st June.SETS1VY5AX33O81N28.The true zenith distance of the Sun when on the observer's meridian bearing South is 54 28'.6 and the declination is 4 28'.4 S. Calculate the observer's latitude.(A)50 00.0' N >(B)50 00.2' N (C)58 57.0' N (D)58 28.6' N SETS1NLJ8XZSHBDN29.When the index mirror and the horizon mirror of the sextant are parallel, the sextant should read...(A)120(B)90(C)60>(D)0

SETS1TM9TELCD7N30.If the GHA of the sun is 315 and the LHA is 36, what is the longitude?(A)9E>(B)81E(C)59W(D)121WSETS1BLUQAAYXBN31.A position line drawn in the direction 150/330 could correspond to an azimuth of the observed body of...(A)230 True (B)150 True >(C)240 True (D)250 True SETS14WO9MDGLM8N32.A position line drawn in the direction 045/225 could correspond to an azimuth of the observed body of...(A)155 True>(B)315 True(C)045 True(D)325 True

SETS13YDF3K347CN33.A first observation of the Sun was taken at 0815 Local Time. If the vessel is steaming at 14 knots, how far should the position line be moved along the couse made good to find the position at 1200?>(A)52.5 miles(B)56 miles(C)49 miles(D)48.3 milesSETS1M8PFQSARLN34.The path of the earth's rotation around the sun, relative to the plane of the equator, is...>(A)at an angle of 23.5.(B)parallel.(C)at right angles.(D)at an angle of 5.SETS1BL9UMSJMEN35.Given that the True Zenith Distance is 36 24.8' and that the Calculated Zenith Distance is 36 22.0', find and name the intercept, with respect to the direction of the observed body.(A)4.0' Away>(B)2.8' Away(C)2.8' Towards(D)4.0' TowardsSETS1O3TB019K94N36.The true altitude of the suns lower limb is 74 45'.4. Find the true zenith distance.>(A)15 14.6'(B)25 14.6'(C)14 14.6'(D)16 14.6'SETS1BDEC20Y7C0N37.The declination of a celestial body is the...(A)angle, measured at the centre of the earth, between the observer and the body.(B)arc of the celestial meridian between the ecliptic and the parallel of declination passing through the body.(C)angle, measured at the centre of the earth, between the body and the ecliptic.>(D)arc of the celestial meridian between the equinoctial and the parallel of declination passing through the body.SETS1BOCYJX4IP7N38.At the winter solstice, the sun will not rise at all in higher latitudes than...(A)90(B)23.5(C)72.5>(D)66.5SETS1Z2X3IZRWEIN39.At sunrise and sunset, the effect of atmospheric refraction is to...>(A)reduce the sun's apparent vertical diameter.(B)reduce the sun's apparent horizontal diameter.(C)make the sun appear to change altitude more slowly.(D)make the sun appear smaller overall.SETS1J02ET7GVMN40.The true altitude of Canopus is 64 52'.4. Find the true zenith distance.(A)15 06.7'(B)15 07.6'(C)25 06.7'>(D)25 07.6'SETS1MF17124JLON41.What is the "error of perpendicularity" on a marine sextant?>(A)When the index mirror is not perpendicular to the plane of the sextant.(B)When the horizon glass/mirror is not perpendicular to the plane of the sextant.(C)When the telescope collar is not perpendicular to the plane of the sextant.(D)When the index mirror and the horizon glass/mirror are not parallel at all times.

SETS16T16AB9WBN42.If a ship is in 150E longitude and the equation of time is +6 minutes, what is the GMT of noon at the ship?(A)2154(B)O154>(C)O206(D)2206SETS1TPTKUGHAYN43.The summer solstice in the southern hemisphere is approximately on...(A)1st December.>(B)21st December.(C)21st January.(D)1st January.

SETS1MXPECPRATN44.Latitude on the terrestrial sphere is comparable with what on the celestial sphere?>(A)Declination.(B)Celestial meridian.(C)Celestial hour circle.(D)Altitude.SETS1Q01NCRNF1N45.To an observer in longitude 75W, the LHA of the sun is 327. What is the GHA of the sun?>(A)042(B)108(C)318(D)252SETS1MK19LBZZTN46.After all the adjustments have been made to the sextant, any remaining error is called... (A)instrument error.>(B)index error.(C)summation error.(D)personal error.SETS1WU071AREGN47.Given that the true altitude is 61 47.9' calculate the True Zenith Distance(A)32 35.1'(B)46 20.2'(C)43 39.8'>(D)28 12.1'SETS13HX3WJDZKIN48.From those listed, how can the index error be detected in a marine sextant?(A)Clamp the index somewhere on the arc; hold the sextant vertically and observe the sun (using shades) through the telescope.(B)Clamp the index at zero; hold the sextant horizontally and observe true and reflected horizon through the telescope.(C)Clamp the index somewhere on the arc; hold the sextant horizontally with the arc away and look at the arc and its reflection in the index glass.>(D)Clamp the index at zero; hold the sextant vertically and observe true and reflected image of a star through the telescope.SETS1XHN9Y7IX9QN49.What is the "error of collimation" on a marine sextant?(A)When the arc has been incorrectly graduated or has been damaged.(B)When the vernier or micrometer scals are incorrect.(C)When the telescope and/or mirrors causes distortion.>(D)When the telescope is not parallel to the plane of the sextant.SETS1A9Y1FXQ96N50.Given that the True Zenith Distance is 64 44.0' and that the Calculated Zenith Distance is 64 53.0', find and name the intercept, with respect to the direction of the observed body.(A)9.0' Away(B)11.0' Away(C)2.8' Towards>(D)9.0' TowardsSETS15C6NZGZ6ZBN51.The times of civil twilight are tabulated in the Nautical Almanac. These times are...(A)the LMT when the sun's centre reaches 12 below the visible horizon before sunrise and after sunset.(B)the LAT when the sun's centre reaches 12 below the visible horizon before sunrise and after sunset.(C)the LAT when the sun's centre reaches 6 below the visible horizon before sunrise and after sunset.>(D)the LMT when the sun's centre reaches 6 below the visible horizon before sunrise and after sunset.SETS1FVJITOE929N52.If a ship is in 30W longitude and the equation of time is -4 minutes, what is the GMT of noon at the ship?(A)1404(B)1004>(C)1356(D)O956SETS16P3BA2XCE7N53.A position line drawn in the direction 070/250 could correspond to an azimuth of the observed body of... (A)250 True(B)050 True(C)070 True>(D)160 True

SETS1U0PNMBON7N54.A position line drawn in the direction 095/275 could correspond to an azimuth of the observed body of...>(A)005 True(B)275 True(C)355 True(D)095 TrueSETS1JWXWLQSNM2N55.If the Azimuth of a body is found to be 305 True, the position line would be drawn through the Intercept Terminal Position in a direction of...>(A)035/215(B)075/255(C)085/265(D)095/275SETS187ZWS76A7IN56.The index error of a marine sextant read as 35 25'.3 is known to be 2' off the arc. Find the observed altitude.>(A)35 27.3'(B)35 29.3'(C)35 23.3'(D)35 25.3'SETS1NXO5GAES4N57.The path of the moon's rotation around the earth, relative to the plane of the earth's rotation around the sun, is...>(A)at an angle of 5.(B)parallel.(C)at right angles.(D)at an angle of 23.5.SETS1HOA7XIG3I5N58.The plane of the index mirror of the sextant is at an angle of 20 to the plane of the horizon mirror. What is the reading on the arc?(A)60(B)20(C)80>(D)40SETS1AF6IXO89LHN59.Which error exists when the axis of the telescope of a sextant is not parallel to the plane of the instrument?(A)Parallelism.(B)Side.>(C)Collimation.(D)Prismatic.SETS16TJ9THW9SZN60.The summer solstice in the northern hemisphere is approximately on...(A)21st July.(B)1st June.>(C)21st June.(D)1st July.SETS1AXYE5QU62N61.Given that the True Zenith Distance is 17 44.0' and that the Calculated Zenith Distance is 17 46.0', find and name the intercept, with respect to the direction of the observed body.(A)4.0' Away(B)2.0' Away>(C)2.0' Towards(D)4.0' TowardsSETS1JE6SIWSQ4VN62.The true zenith distance of the Sun when on the observer's meridian bearing North is 6 and the declination is 16 N. Calculate the observer's latitude.(A)10 S(B)22 N>(C)10 N(D)22 SSETS1269I0MJTZ4N63.Which one of the following errors of the sextant would you be unable to adjust or minimise?>(A)Centering.(B)Index.(C)Side.(D)Perpendicularity.SETS14WA9NLDK6N64.The earth rotates around the sun approximately every...>(A)365 days.(B)367 days.(C)366 days.(D)360 days.

SETS12UQMZTR2JN65.The earth is said to be in "aphelion" on approximately...>(A)4th July.(B)1st January.(C)21st June.(D)21st January.SETS19GMJSDBH4N66.A first observation of the Sun was taken at 0815 Local Time. If the vessel is steaming at 12 knots, how far should the position line be moved along the couse made good to find the position at 1200.(A)48 miles>(B)45 miles(C)36 miles(D)42 milesSETS13Y6J5VE5MN67.The true zenith distance of the Sun when on the observer's meridian bearing North is 6 57.4' and the declination is 21 28'.4 S. Calculate the observer's latitude.>(A)28 25.8' S(B)28 25.8' N(C)14 31.0' N(D)14 31.0' SSETS1FYFCC105CAN68.Which of the statements listed is true in relation to the magnitude ofstars?(A)A 6th magnitude star is 6 times brighter than a 1st magnitude star.(B)A 6th magnitude star is 100 times brighter than a 1st magnitude star.(C)A 1st magnitude star is 6 times brighter than a 6th magnitude star.>(D)A 1st magnitude star is 100 times brighter than a 6th magnitude star.SETS1T6259V72RNN69.The sidereal hour angle of a celestial body is the...(A)arc of the equinoctial (measured eastwards from the first point of Aries) to the celestial meridian through the body.(B)angle at the celestial pole between the meridian through Greenwich and the meridian through the body (measured westwards).>(C)arc of the equinoctial (measured westwards from the first point of Aries) to the celestial meridian through the body.(D)angle at the celestial pole between the meridian through Greenwich and the meridian through the body (measured eastwards).SETS1ZYK4RDAA7N70.The true zenith distance of the Sun when on the observer's meridian bearing North is 6 and the declination is 21 S. Calculate the observer's latitude.(A)15 N>(B)27 S(C)15 S(D)27 NSETS1W80ASY4RRN71.The earth is said to be in "perihelion" on approximately...(A)21st January.(B)21st June.>(C)1st January.(D)4th July.SETS15X9JM93YOFN72.Sidereal hour angle is defined as the angular distance of an hour circle...(A)east of a reference hour circle.>(B)west of the First Point of Aries.(C)west of the prime (Greenwich) meridian.(D)west of the observer's meridian..SETS1ONJZ2LTW7N73.The correction for atmospheric refraction as applied to the observed altitude of a body...>(A)decreases with altitude. (B)increases with altitude.(C)is negligible and can be ignored. (D)depends only on atmospheric conditions, and is independent of altitude. SETS1JJIKKGV09DN74.A position line drawn in the direction 085/265 could correspond to an azimuth of the observed body of...(A)005 True(B)265 True>(C)355 True(D)085 True

SETS1J0A7D428HDN75.To an observer in longitude 65W, the LHA of a star is 48. If the SHA of the star is 217, what is the GHA of Aries?(A)304(B)160>(C)256(D)104SETS1X9817W96BYN76.Given that the true altitude is 17 44.0' calculate the True Zenith Distance.>(A)72 16.0'(B)43 39.8'(C)34 06.4'(D)32 35.1'SETS1UN0BQBNBHWN77.The earth spins on its axis approximately every...

>(A)24 hours.(B)23 hours.(C)24.5 hours.(D)23.5 hours.SETS18E7KJQCUJ0N78.If a star has a northerly declination and the observer is in north latitude, which of the statements listed is true?(A)The bearing of the star must be south when on the meridian.(B)The star will be above the horizon for less than 12 hours.(C)The star must be circumpolar.>(D)The star will be above the horizon for more than 12 hours.SETS1P3S8HF1WNIN79.The index error of a marine sextant read as 48 25'.3 is known to be 5' on the arc. Find the observed altitude.(A)48 30.3'>(B)48 20.3'(C)48 25 .3'(D)48 35.3'SETS1EAHSVLMCGN80.The true zenith distance of the Sun when on the observer's meridian bearing South is 15 and the declination is 22 N. Calculate the observer's latitude.(A)7 N>(B)37 N(C)7 S(D)37 SSETS1BLPKL5C9ZN81.The true zenith distance of the Sun when on the observer's meridian bearing South is 15 23.6' and the declination is 22 19.5' N. Calculate the observer's latitude.(A)17 43.1' N(B)6 55.9' N(C)6 55.9' S>(D)37 43.1' NSETS1DDHA2CVGYN82.For a circumpolar star, which, from those listed, is NOT true?(A)The star is above the horizon for 24 hours of the day.>(B)The LHA of the star will always be less than 90.(C)The polar distance of the star must be less than the observer's latitude.(D)The declination and latitude of the observer must be the same name (both north or both south).SETS1W9946HNPZN83.The "equation of time" is...(A)the difference between a lunar day and a solar day.(B)the formula for calculating the time of noon.(C)the formula for determining local time from Greenwich time.>(D)the interval between apparent time and mean time.SETS17VWVJSC8QN84.Given that the true altitude is 57 24.9' calculate the True Zenith Distance(A)55 53.6' (B)57 24.9' (C)46 20.2' >(D)32 35.1' SETS1TDM4D3Y81N85.What is the angle between the ecliptic and the equinoctial?>(A)23.5(B)66.5(C)90(D)0

SETS1XNF0CVKJQ7N86.If the Azimuth of a body is found to be 355 True, the position line would be drawn through the Intercept Terminal Position in a direction of... (A)075/255(B)355/175>(C)085/265(D)095/275SETS1TEUT8N0EAN87.From those listed, how can the error of perpendicularity be detected in a marine sextant?(A)Clamp the index at zero; hold the sextant vertically and observe true and reflected image of the horizon through the telescope.>(B)Clamp the index somewhere on the arc; hold the sextant horizontally with the arc away and look at the arc and its reflection in the index glass.(C)Clamp the index at zero; hold the sextant horizontally and observe true and reflected horizon through the telescope.(D)Clamp the index somewhere on the arc; hold the sextant vertically and observe the sun (using shades) through the telescope.SETS10P40FV1JU8N88.The magnitude of a star is a measure of its...(A)absolute brightness.(B)diameter.(C)semi-diameter.>(D)relative brightness.SETS123MCLO7PUN89.Given that the True Zenith Distance is 36 22.0' and that the Calculated Zenith Distance is 36 24.8', find and name the intercept, with respect to the direction of the observed body.(A)4.0' Towards>(B)2.8' Towards(C)2.8' Away(D)4.0' AwaySETS1I95ERGV44HN90.Given that the true altitude is 46 20.2' calculate the True Zenith Distance.(A)46 20.2'(B)72 16.0'(C)34 06.4'>(D)43 39.8'SETS16JBJUZL1RGN91.Which one of the following errors of the sextant would you attempt to remove?(A)Prismatic error.(B)Centering error.(C)Shade error.>(D)Perpendicularity.SETS1SZI5AQQ0X1N92.If the Azimuth of a body is found to be 069 True, the position line would be drawn through the Intercept Terminal Position in a direction of...(A)069/249(B)149/329(C)169/349>(D)159/339

DO-01B-Plan and Conduct a Passage - Terrestrial and Coastal NavigationQuestion CodeQuestionSETS1JXIHP3JBISN1.The use of radar ranges is preferred to radar bearings for position fixing because...(A)they are quicker to take.(B)they are easier to take.>(C)they are more accurate.(D)suitable targets are easier to identify.SETS1IMS744Y8LUN2.A chart suitable for inshore navigation, for entering bays and harbours, would have a scale of....(A)1:150,000 to 1:600,000(B)1:100,000 to 1:500,000(C)1:600,000 and smaller>(D)1:50,000 to 1:150,000SETS1NA36BLPXBN3.When choosing objects for position fixing by radar ranges you should, if possible, avoid....(A)large prominent features.>(B)gently sloping land features.(C)steep-faced features.(D)small isolated features.SETS1NC7X9179N3N4.A vessel in initial position 38 46' S 111 31' E then steams on a course of 056 for 393 miles. Calculate (using plane sailing) the final latitude to the nearest minute.(A)42 26' S>(B)35 06' S(C)32 13' S(D)45 19' SSETS16FM8OL5A6FN5.What is the definition of the "luminous range" of a light?(A)The maximum distance at which a light may be seen in clear weather.>(B)The maximum distance at which a light may be seen, under prevailing meteorological conditions.(C)The maximum theoretical range of visibility of a light, determined from the heights of observer and the light.(D)The maximum distance at which an observer at sea level can observe the light under standard meteorological conditions.SETS1GRWQ58D7GN6.Spring tides normally occur...(A)about every three weeks.(B)about every four weeks.>(C)about every two weeks.(D)about every seven days.SETS1LZ6KS5XZMN7.You are planning a passage across the North Atlantic. The chart most useful for evaluating Ocean Currents and weather probabilities is a.....(A)Mercator Chart.>(B)Routeing Chart.(C)Gnomonic Chart.(D)Transverse Mercator Chart.SPECT10O1CSYU0N8.When taking a navigation chart from the folio how can you reliably determine the state of correction?(A)Ask the officer responsible for chart corrections on board what progress he/she has made with the corrections received at the last port.>(B)Check the number of the Notice to Mariners entered at the bottom left-hand corner of the chart.(C)Look under the title of the chart for the date of survey.(D)Show the chart intended for use during your watch to the master, and ask if it is in good order and corrected to date.SETS1N8JZ3FMP5QN9.A vessel left 4230'N, 2425'W, and steamed 245 miles on a course of 050T. Use plane sailing to find the arrival position(A)3953'N, 2835'W(B)4538'N, 2108'W(C)3953'N, 2007'W>(D)4507'N, 2007'WSET010000000176N10.You are on watch at night and you stop the main engines. What changes would you make to your navigational lights?(A)Switch on three vertical red lights>(B)Switch on two vertical red lights and switch off steaming lights.(C)Switch on two vertical red lights and switch off all other navigational lights.(D)Switch the steaming lights offSPECTNTADG84E8IN11.When details on a chart have to be cancelled one should:(A)erase the area to be deleted.(B)cross through using red ink.>(C)cross through using permanent violet ink.(D)apply a white fluid to blank out the area to be corrected.STCW2RTR2QWSDIIN12.The direction towards which a tidal stream runs is called ......(A)drift (B)leeway>(C)set (D)current SPECTWYQ2YH54BN13.What do the initials VTS stand for?(A)Vessel-radar Target Service.(B)Vessel Traffic System.(C)Vessel Traffic Statement.>(D)Vessel Traffic Service.VIDTL5W95YFOYAAN14.What does this chart symbol mean?(A)Direction of Prevailing Wind>(B)Direction of Buoyage(C)Direction of Traffic Lane(D)Direction of Tidal StreamSETS1K2HV0F6L46N15.A vessel steers a course of 007T for a distance of 391 miles. Find the difference of latitude (to the nearest whole minute) and the departure (to the nearest whole mile).(A)Difference in latitude 405' and departure 20 miles.(B)Difference in latitude 90' and departure 11 miles.(C)Difference in latitude 388' and departure 55 miles.>(D)Difference in latitude 388' and departure 48 miles.SPECTW8FYFRNSM0N16.Which of the following are NOT normally included in the initial notification?

(A)The ship's name.(B)The ship's call sign.(C)Notification of hazardous cargo.>(D)Any health problems of those on board.SETS1892UWTKPBN17.From those listed, the best land target to use for a radar bearing is....(A)a coastal indentation.(B)a large headland.>(C)an isolated feature.(D)a sloping foreshore.SETS1VISDG43GKN18.Calculate (using plane sailing) the true course to steer to the nearest degree between initial position 49 55' N 02 50' W and 49 05' N 01 22' E(A)253(B)073>(C)107(D)287SETS1EI9T1Z0PMNN19.Calculate the distance (to the nearest mile) along the great circle between position45 36' N 8 46' W and 12 18' N 79 24' W(A)3764 miles(B)3549 miles>(C)4064 miles(D)3926 milesSETS1UISIGCO540N20.A vessel is in 22 N and steams on a course of 000T until it is in latitude 38 14'N. What distance has she steamed?(A)914 miles(B)2294 miles(C)3614 miles>(D)974 milesSETS163BL1HIXDDN21.The period of a semidiurnal tide is approximately..... >(A)half a lunar day.(B)half a solar day.(C)a lunar day.(D)half a sidereal day. SETS16IOVU1L661N22.On the Beaufort scale, force 3 is described as a....(A)moderate breeze.(B)fresh breeze.(C)light breeze.>(D)gentle breeze.SET010000000294N23.Which of the following options would be considered "good seamanship"?>(A)Sounding a fog signal when in clear weather, but approaching a fog bank.(B)Proceeding on the port side of a narrow channel to take advantage of a favourable current.(C)Using radar when proceeding at full speed in fog.(D)Using deck and accommodation lights to indicate the presence of your ship in poor visibility.SET010000000663N24.When must a passage plan be prepared?(A)Whenever requested by a pilot(B)Any of the other options(C)Gradually during a sea voyage>(D)Before the voyage commencesSETS19YILF8NUPAN25.In 4534'N, a ship sails due east from 16410'E to 17020'E. How far has the vessel traveled?(A)378 miles>(B)259 miles(C)264 miles(D)530 milesSETS16FR6WEETKN26.Calculate the difference in latitude between the following two positions: 35 20' N 20 35' W and 50 00' N 20 35' W(A)14 45'(B)24 40'>(C)14 40'(D)14 20'SPECTR3B3K7WY7N27.Which item does NOT belong? Notices to Mariners provide information:(A)for making all corrections to charts and sailing directions and important corrections to light lists.(B)on the publication of new charts and navigational publications.>(C)on changes to ship agency offices throughout the world.(D)on navigational warnings.SETS1JZN8PLXAYKN28.A vessel in initial position 50 00' N 02 00' W then steams on a course of 045 for 6 hours at a constant speed of 14 knots. Calculate (using plane sailing) the final latitude. >(A)50 59' N(B)49 01' N(C)50 00' N(D)51 59' NSETS1DJPO4URWFWN29.What is the definition of the "geographic range" of a light?

(A)The maximum distance at which an observer at sea level can observe a light under standard meteorological conditions.(B)The maximum distance at which a light may be seen under existing visibility >(C)The maximum distance at which a light may be seen, limited only by the curvature of the earth, in perfect visibility.(D)The maximum distance at which a light may be seen, limited only by its candlepower.SETS1TC4S696ZVDN30."What symbol on a navigational chart would be shown for a sea bottom of clay?"(A)cy(B)Cl(C)C>(D)CySETS1KTM2V1XL2N31.You see a Notice to Mariners numbered 3234(T). What does the (T) tell you about this notice?(A)It applies only to Tank vessels.(B)It concerns a Traffic scheme.(C)It announces a new Type of chart.>(D)It refers to a Temporary situation.SETS1GFEAW3V1JN32.How should tidal predictions be made for stretches of coastline between Secondary Ports?>(A)By using a co-tidal line chart.(B)By using the nearest port predictions.(C)Such predictions should not be made.(D)By interpolating between the predictions for the nearest ports on either side.

SETS1M5OXO8YPQN33.You see a Notice to Mariners numbered 3235(P). What does the (P) tell you about this notice?(A)It is a Permanent change.(B)It should be treated with caution; the information has not been checked and could be Poor.(C)It concerns a Privately maintained aid to navigation.>(D)It is a Preliminary notice.SETS1HIE0LR3AQZN34.The shortest distance between two points on the earth's surface is....(A)a para-angular course.(B)a loxodrome.(C)an arc of a small circle.>(D)an arc of a great circle.SETS16IS0KD4W9QN35.A vessel steamed 210 miles on a course of 295T. The departure point was 3530'N. What latitude do you arrive at? (A)3658'S(B)3558'N>(C)3658'N(D)3630'SSPECTMSQIKNAM2N36.Which of the items listed should be included in the notebook to amplify and support the track on the chart?>(A)All of the above(B)Course alteration positions(C)Manpower requirements(D)Minimum depth clearances where criticalSETS1NXN74RS78HN37.A vessel in initial position 40 30' N 179 00' E steams due east for 240 miles. Calculate the new longitude to the nearest minute.(A)173 44' E>(B)175 44' W(C)177 00' W(D)173 44'WSETS1JQJ8OS23FUN38.Which statement is true of a position line on a chart?>(A)It can be a straight or a curved line.(B)It must be part of the circumference of a circle.(C)It must be a straight line.(D)It must be a curved line.SETS1TQS8K4ACGN39.Find the distance (departure) to the nearest whole mile between initial position 50 00' N 02 00' W and 50 00' N 01 26' W>(A)22 miles(B)26 miles(C)35 miles(D)27 milesSTCW2R6T8XHHBFN40.Where will you find a comprehensive list of navigation charts with the title and number for various parts of the world?(A)Chart folio>(B)Chart catalogue(C)Sailing directions(D)Chart 5011STCW2UPKHGV9ARXN41.The correct order to follow when planning a passage is ......>(A)appraise, plan, monitor, execute(B)plan, appraise, monitor, execute(C)plan, monitor, execute, appraise.(D)plan, monitor, appraise, executeSPECT82I4HAN8SLN42.The first contact with a VTS can be made by the vessel or by the vessel's Agent. What is the term used for this procedure?(A)The Port questionnaire.(B)The Master's message.>(C)The initial notification.(D)The Agent's notification.SETS15O3IKOALCIN43.In an area with very high atmospheric pressure, the tides will....(A)show a longer running flood period.(B)be unchanged.>(C)be lower than predicted.(D)be higher than predicted.SETS1N429S5UML5N44.How are Secondary Ports chosen to be linked with a particular Standard Port?(A)The heights of high and low water are very close for the Standard and Secondary (B)The times of high and low water are very close for the Standard and Secondary Ports.>(C)The Standard Port is the nearest one with similar tidal characteristics.(D)The Standard Port is the nearest one to the Secondary Port.SETS1OYX6P077LYN45.Find the difference in longitude between initial position 50 00' N 02 00' W and 50 00' N 01 25' W(A)35' W(B)25' W(C)25'E>(D)35' ESPECT1P9RZBYVWN46.Notices to Mariners are occasionally accompanied by "blocks". What does the word "block" mean in relation to chart correcting?>(A)A reproduction of a portion of a chart.(B)A group of chart corrections which has to be applied to one clearly identified chart. (C)A number of chart corrections relating to a named folio.(D)A cutting surface to work on during chart correcting.SETS1PFLWNTQPVN47.What is the usual datum for a port or area from which predicted tidal heights are calculated?(A)The lowest recorded water level in that locality.(B)The average low water level in that locality.>(C)The lowest astronomical tide level.(D)The mean low water springs level.STCW23DHENTQ8RN48.What is a routeing measure aimed at the separation of opposing streams of traffic by establishing traffic lanes called?(A)Separation Zone>(B)Traffic separation scheme(C)Traffic Lane(D)Recommended routeSETS1ADPEXD7WVN49.What is true of the tide at an amphidromic point?>(A)The tidal range is zero.(B)Co-range lines converge.(C)The tidal range is maximum.(D)Only spring tides occur.SETS13FL5MEZC7BN50.A vessel in initial position 40 30' N 179 00' W steams due east for 240 miles. Calculate the new longitude to the nearest minute.>(A)173 44' W(B)175 00' W(C)175 44'W(D)175 44' ESETS17XJWGCNT8WN51.Calculate (using plane sailing) the distance to the nearest mile between initial position 50 50' N 02 00' W and 50 00' N 01 25' W.(A)50 miles(B)61 miles(C)65 miles>(D)55 milesSETS1P4YCIE04IUN52.What is the definition of the "nominal" range of a light? (A)the maximum theoretical range of visibility of a light, determined from the heights of observer and the light.(B)the maximum distance at which a light may be seen, under prevailing meteorological conditions.(C)the maximum distance at which an observer at sea level can observe the light under limited meteorological conditions.>(D)the maximum distance at which a light may be seen in clear weather.SETS1WY6INXTR9DN53.Morning stars give a position 4230'N, 2425'W, and evening stars give a position 4407'N, 2007'W. By plane sailing or traverse table, find the course and distance made good. (A)332.6 x 206.2 miles(B)297.4 x 215.5 miles(C)027.4 x 220 miles>(D)062.6 x 211.3 miles

SETS15XND0GG7KN54.Find the distance (departure) to the nearest whole mile between initial position 48 14' N 04 50' W and 48 14' N 01 22' E.(A)276 miles>(B)248 miles(C)372 miles(D)278 milesSTCW2N47JUBJT9KN55.A navigational position line is a part of a ......>(A)position circle.(B)small circle.(C)segment.(D)All of the other options.SETS1WH5JWVUPKMN56.On the chart, to find the course to steer to make good a course, allowing for current and leeway, the current and leeway would be applied....(A)leeway first, at the start of the run, and then the current.>(B)current first, at the start of the run, and then leeway.(C)leeway, and then current, at the end of the run.(D)current, and then leeway, at the end of the run.SPECTOPID59KLOAN57.What do the letters GPS refer to?>(A)Global Positioning System. A global positioning service.(B)Geodetic Position System. A positioning and chart correcting service.(C)An electronic chart display.(D)Great Polar Services. That is an electronic navigation system using the latest technology available to the shipping industry.STCW2HCW7CQ3S95N58.On a navigational chart, how is the probable direction of the predominant direction of sea surface current indicated?(A)Letter d(B)Letter b(C)Letter c>(D)Letter aSETS1T7M415IM47N59.A vessel in initial position 38 46' S 111 31' E then steams on a course of 056 for 393 miles.Calculate (using plane sailing) the final longitude to the nearest minute.(A)106 06' E(B)104 43' E(C)116 56' E>(D)118 19' ESETS1XGPG10H2UN60.Calculate (using plane sailing) the distance to the nearest mile between initial position 49 55' N 02 50' W and 49 05' N 01 22' E(A)164 miles(B)564 miles>(C)171 miles(D)323 milesSETS1RV2EGM0EJN61.Calculate the difference in latitude between the following two positions: 54 35' N 02 00' W and 50 00' N 02 00' W(A)4 00'>(B)4 35'(C)2 00'(D)4 53'SETS1WBBZQ4AGCN62.Which of these would be described as "wind veering"?>(A)A shift from W to NW.(B)A shift from WNW to WSW.(C)A shift from SW to SSW.(D)A shift from SE to E.SETS1FHEBQDJVFN63.A position line on a chart is defined as a line...(A)passing through some stated position.(B)joining any two positions.>(C)somewhere on which the observer is situated.(D)drawn from the ship to a desired destination position.

SPECTSIIFOY9H2GN64.How can you find out the type of VTS offered to vessels in a particular area?>(A)Admiralty List of Radio Signals (ALRS 6 and 7) and other reference documents.(B)In the Classification Society records on board.(C)By a request to the company's head office.(D)By the notation on the smallest scale chart.SETS1L0PGNOXNSN65.In an anticyclone in the northern hemisphere, the surface wind circulation is...>(A)clockwise, with the wind blowing across the isobars at an angle towards the lower pressure.(B)anticlockwise, with the wind blowing across the isobars at an angle towards the high pressure centre.(C)clockwise, with the wind blowing across the isobars at an angle towards the high pressure centre.(D)anticlockwise, with the wind blowing across the isobars at an angle towards the lower pressure.SPECTXY8XZ2IJPHN66.Which of the items listed is not required when collecting the information needed to draw up the plan?(A)Tide Tables>(B)Cargo discharge schedule(C)Relevant Notices to Mariners(D)List of LightsSTCW2PQYWX3A4WWN67.What is the line roughly following the 180th meridian called?

(A)The Equator (B)The Greenwich meridian (C)A rhumb line>(D)The date lineSETS1S5ZDXZTQBN68.What is a "Storm Surge" of tide?(A)The whirlpool effect caused by winds circulating in a tight spiral round a deep depression.(B)Raising the sea level due to very heavy precipitation in storms.(C)Raising the sea level due to very low barometric pressure.>(D)Raising the sea level due to long waves caused by strong winds blowing along a coast.SETS1GH8ZHIXJZPN69.Great circles appear as straight lines on.....(A)Mercator charts.(B)transverse Mercator charts.(C)orthomorphic charts.>(D)gnomonic charts.SETS1BF9VHYUQ9N70.By sailing due east for a distance of 245 miles, a vessel changed her longitude by 725'. What latitude was the vessel in? >(A)5636'(B)2850'(C)3517'(D)3324'SETS15D96JY9A5HN71.Calculate (using plane sailing) the distance to the nearest mile between initial position 50 00' S 02 00' W and 51 20' S 01 25' W(A)35 miles(B)22 miles>(C)83 miles(D)80 milesSTCW26FOOKQAHGFN72.What is the vertical distance on a given day between the water surface at high and low water called?>(A)Range of tides(B)Height of tide(C)Lowest astronomical tide.(D)Highest astronomical tideSTCW29UOLAWZAI N73.Where is the title of the navigation chart printed?(A)Always at the bottom left hand margin.(B)Always at the center of the chart.(C)Where the sea areas are located.>(D)In some convenient, conspicuous place, where it does not hinder navigation or the use of it.SETS1LREKHAGUNN74.When the moon is in quadrature, the tide is....(A)an ebb tide.>(B)a neap tide.(C)a spring tide.(D)a flood tide.

STCW2G2U6S4QN3N75.When using great circle sailing the saving in distance is the most when......(A)the course is N-S.(B)the course is one of the inter-cardinal headings.(C)at the equator.>(D)the course is E-W ,nearer to the poles.SETS1YZFWRCBK3N76.Find the difference in longitude between initial position 50 00' N 178 00' W and 50 00' N 179 00' E.(A)3 00' E>(B)3 00' W(C)2 00' E(D)2 00' WSTCW2MDCN48AM88N77.In which publication can information on VTS be found?

(A)Routeing Charts >(B)ALRS (C)Tide Tables (D)Chart CataloguesSETS1ZRPHW8XC2N78.A ship steers the following courses & distances:135 T for 30 miles260 T for 54 miles169 T for 42 milesA current set 306T for 9 miles during the passage.Calculate(using plane sailing) the course & distance made.(A)155 T 126 miles>(B)205 T 74 miles(C)155 T 74 miles(D)205 T 126 milesSETS1B5DL734XSN79.When the moon is in opposition, the tide is....(A)an ebb tide.>(B)a spring tide. (C)a neap tide. (D)a flood tide.SETS12USQVX3KGN80.Calculate the distance (to the nearest mile) along the great circle between position49 18' N 123 08' W and 33 52' S 151 12' E.(A)5726 miles(B)1684 miles>(C)6746 miles(D)3969 milesSET010000000664N81.What should a passage plan include?(A)The OOW decides what to include in the passage plan.(B)The plan should cover the first half of the sea voyage.(C)The plan should include the first 72 hours of the sea voyage.>(D)The plan should include the entire voyage from berth to berth.SET010000000188N82.You expect to sight land at 2100. By 2120 no land has been sighted, the visibility is good. What action would you take?>(A)Call the master.(B)Stop engines.(C)Keep looking out.(D)Alter course.STCW2QPQV4WQC9WN83.What is the meaning of the symbol Cl on a navigational chart?>(A)Clay(B)Cloud(C)Coral(D)CillSETS1TD4RDAXSZN84.On the Beaufort scale, force 5 is described as a....(A)light breeze.(B)moderate breeze.>(C)fresh breeze.(D)gentle breeze.SETS1TUVE4L2QTN85.Calculate (using plane sailing) the distance to the nearest mile between initial position 50 00' N 178 00' W and 52 00' N 179 30' E(A)187 miles(B)120 miles>(C)153 miles(D)94 milesSETS1GY3W32CIZ7N86.When tides are classed as being diurnal, there will be..... (A)two high waters and one low water each tidal day. (B)two high waters and two low waters each tidal day. >(C)one high water and one low water each tidal day. (D)one high water and two low waters each tidal day. SETS15W8VS9FP3N87.A ship steers the following courses and distances:080 T for 42 miles201 T for 36 miles145 T for 27 miles045 T for 45 milesCalculate (using plane sailing) the course and distance made good.(A)099 T 150 miles(B)009 T 150 miles>(C)099 T 81 miles(D)081 T 81 milesSETS1MNGB29B31N88.Calculate (using plane sailing) the true course to steer to the nearest degree between initial position 16 52' S 08 51' W and 12 46' S 11 23' W(A)031(B)221(C)346>(D)329SETS1YISOIABN8WN89.A light giving 4 flashes, which has sectors showing two different colours, could have an abbreviated description....(A)F(4)WR 15s 15m 12.10M(B)fl 15s 15m 12.10M(C)F WR 15s 15m>(D)Fl(4)WR 15s 15m 12.10MSETS1TTX8N28NPN90.During a 24hr run, a vessel changes latitude 244 miles to the north and makes a departure of 145 miles to the west. Use plane sailing to find the course and distance made good. >(A)329/285 miles(B)149/211 miles(C)301/473 miles(D)239/289 miles

SPECT43XZVJF49UN91.What is the VTS sailing plan?(A)The surface picture of vessels and their movements within the VTS area of operations.(B)The vessel's planned passage as mutually approved by the Master and navigating and engineering officers.(C)The centre from which the VTS is operated.>(D)A plan which is mutually agreed between a VTS authority and the Master of a vessel concerning the movement of the vessel in a VTS area.SETS1K5M3JL6V7QN92.Calculate the initial course (to the nearest degree) to steer along the great circle between position34 22' S 115 08' E and 11 51' S 51 16' E.(A)355 T(B)185 T(C)265 T>(D)275 TSETS1TZQ6FQM2CN93.Calculate (using plane sailing) the distance between initial position 32 46' S 178 00' E and 32 00' S 179 50' W>(A)119 miles(B)130 miles(C)132 miles(D)46 milesSETS1P5CBJRA6A2N94.A ship steers 030T for 120 miles. Find the difference of latitude (to the nearest whole minute) and the departure (to the nearest whole mile). (A)Difference of latitude 60' and departure 104 miles>(B)Difference of latitude 104' and departure 60 miles.(C)Difference of latitude 60' and departure 60 miles.(D)69 miles difference of latitude 69' and departure 60 miles.

STCW26SKZOCS4GUN95.When selecting the maximum distance at which a landfall light would be visible, which of the following should be selected?>(A)lesser of the two (geographical & nominal range)(B)nominal range (C)geographical range (D)greater of the two (geographical & nominal range)SPECTNGEUJCCNHON96.Poor bridge organisation often contributes to navigational casualties. The navigational charts are vital to passage or voyage planning as well as for navigation. Which of the following statements does NOT belong?(A)The commonest changes to charts are man made such as lights, buoys and new obstructions.(B)A chart is the prime aid for situational awareness.(C)A chart starts to become out of date as soon as it is printed.>(D)An efficient bridge team will always function effectively even without an up-to-date and accurate chart.SETS1V1U4N2VXPJN97.A vessel in initial position 50 00' N 02 00' W then steams on a course of 045 for 6 hours at a constant speed of 14 knots. Calculate (using plane sailing) the final longitude to the nearest minute. >(A)00 27' W(B)00 57' W(C)01 01' W(D)03 03' WSPECTD1N316H4LGN98.When describing the possible activity of a VTS, which item in the list below does NOT belong?>(A)A shore based vessel inspection service.(B)A traffic organisation service.(C)A navigational assistance service.(D)A simple information service..SETS13QDZ0XK91FN99.Calculate (using plane sailing) the distance to the nearest mile between initial position 52 00' N 04 00' E and 52 20' N 02 26' E(A)20 miles>(B)61 miles(C)58 miles(D)71 milesSTCW2X4O30IJFEMN100.Distance on a chart is measured using ......(A)any uniform scale.(B)none of the given options.(C)longitude scale.>(D)latitude scale. SETS133IT44A6A1N101.On the Beaufort scale, force 7 is described as a.....(A)gale.(B)fresh breeze.>(C)near gale.(D)strong breeze.STCW2EMKB2TXRCEN102.What is the east - west distance between two points called?

(A)D'lat(B)DMP>(C)Departure (D)D'long SETS16G8AURAB0N103.From the following, what would be the maximum effect of barometric pressure on tidal heights?>(A)0.3 metres.(B)2.0 metres.(C)1.0 metres.(D)0.1 metres.SETS1PASFDCPOSN104.Find the distance (departure) to the nearest whole mile between initial position 56 00' N 01 10' E and 56 00' N 01 25' W.>(A)87 miles(B)155 miles(C)80 miles(D)129 milesSETS1Q2HGC6GUHN105.At 1130, at apparent noon, the vessel's observed position is 4856'N, 3347'W. If the course is 016T at 18kts, find the 1200 position by plane sailing or traverse tables.(A)4904'.7N, 3350'.8W>(B)4904'.7N, 3343'.2W(C)4904'.7N, 3349'.5W(D)4904'.7N, 3344'.5WSPECTDGP1L7M7ON106.Why is violet ink the correct colour to use for chart correcting?(A)Violet ink is best suited to fine nib pens.(B)Violet ink has no advantage over other colours. The important point is to use the same colour ink for correcting throughout.>(C)Violet ink can be seen in all lights and makes it clear where the correction is made.(D)Violet ink dries quickly and does not smudge.SETS1XBIEXHN6BRN107.How is distance measured on a Mercator chart?(A)On the longitude scale.(B)On the scale of meridional parts.>(C)On the latitude scale.(D)On the scale drawing at the bottom of the chart.SETS1I91DX0D3MZN108.The vertex of a great circle is the point at which it....(A)cuts the equator. (B)runs north/south. (C)passes through the Greenwich meridian. >(D)comes nearest to the pole.

STCW2DONEYTXUZVN109.On a navigational chart, what does this figure indicate?

(A)Chimney>(B)Windmill(C)Wind-motor(D)PillarSETS1E3IQKX6HPPN110.Which publication gives the information needed to make a safe approach to a foreign port?(A)"World Ports".>(B)Sailing Directions.(C)Notices to Mariners.(D)"Ocean Routes of the World".STCW2K561TLFECN111.Under soundings marked on the chart, the nature of the sea bottom is also indicated. What does Sh indicate?(A)Corals>(B)Shells(C)Shingle(D)Soft mudSET010000000192N112.Your vessel is carrying a full cargo of scrap steel. Which item of bridge equipment is likely to be unreliable?(A)The satellite navigator.(B)The echo sounder..(C)The gyro compass.>(D)The magnetic compass.SETS16U47IDXRV2N113.A ship steers the following courses and distances:180 T for 22 miles290 T for 73 miles159 T for 68 miles270 T for 16 milesCalculate (using plane sailing) the course and distance made good.(A)315 T 179 miles(B)315 T 85 miles>(C)225 T 85 miles(D)225 T 179 milesSPECTY1R8JKI7C6N114.What is the "Chart datum"?(A)The date of issue of a navigation chart as shown underneath the formal title.(B)A phenomenon found in certain estuaries where there is a large tidal range.(C)The actual depth of water.>(D)An arbitrary level which should be so low that the tide will not often fall below it.

STCW2M1KNFBJ08N115.What charts are used for coasting, pilotage waters and plotting waypoints?(A)Small scale(B)Routeing>(C)Large scale (D)InstructionalSETS15925O2K9NLN116.A vessel left 4244'S, 1624'W, and steamed on a course of 142T for 261 miles. Using plane sailing or traverse table, find its DR position at the end of this run. (A)4610'S, 2009'W>(B)4610'S, 1239'W(C)4610'S, 1343'W(D)4610'S, 1905'WSETS10DY138ZJURN117.Find the distance (departure) to the nearest whole mile between initial position 50 00' N 178 00' W and 50 00' N 179 00' E(A)39 miles>(B)116 miles(C)138 miles(D)180 milesSETS1R7IPJAY68PN118.A vessel in initial position 60 00' N 04 00' E steams due west for 240 miles. Calculate the new longitude to the nearest minute.(A)2 00' E>(B)4 00' W(C)8 00' W(D)12 00'WSTCW216TW30QMQ6N119.The vertical distance between the sea bed and the deepest part of the keel is known as the ......>(A)underkeel clearance.(B)draft.(C)sounding.(D)depth.STCW2K292683XQ6N120.On which side of this buoy should you pass?(A)North>(B)South(C)East(D)WestSETS1WOE2S49FBN121.The most appropriate chart for navigating when approaching a harbour is....(A)a small scale chart.(B)a harbour plan.>(C)a large scale chart.(D)a gnomonic chart.SETS1Q138419I73N122.The chart abbreviation "Al Fl WR 60 secs" indicates...(A)a white flash every 30 seconds followed by a red flash 30 seconds later.(B)a white flash followed immediately by a red flash every 60 seconds then a red flash followed immediately by a white flash every 60 seconds.(C)a white flash every 60 seconds followed by a red flash 60 seconds later.>(D)a white flash followed immediately by a red flash every 60 seconds.SET010000000185N123.Which is the more accurate means of position fixing?(A)A visual bearing and a radar range.(B)Two radar bearings.>(C)Two visual bearings.(D)A radar range and bearing.STCW20MD5LW3RPQN124.In which publication can information on ship reporting be found?

(A)SOPEP Manual(B)IAMSAR(C)Ship Routeing>(D)ALRSSET010000000193N125.What time is used for the ship's course recorder?(A)Company head office time(B)Ship's time>(C)GMT(D)Local time

SET010000000190N126.A vessel is under pilotage approaching a European port. Who is responsible for the safe navigation of the vessel?>(A)The master and duty officers.(B)The pilot.(C)The traffic controller.(D)The pilot and the master together.SETS1RF3RF61R8QN127.Calculate the distance (to the nearest mile) along the great circle between position42 55' S 48 18' W and 18 18' S 11 38' W(A)2723 miles(B)2200 miles>(C)2370 miles(D)2540 milesSETS19D1AL82ZIQN128.A vessel in latitude 54 23' S longitude 16 18' E steams on a course of 270 T until in longitude 8 43' W. How far has she steamed to the nearest mile?(A)472 miles(B)913 miles>(C)874 miles(D)435 milesSETS1Q81EK2TDSN129.Calculate (using plane sailing) the true course to steer to the nearest degree between initial position 52 00' N 04 00' E and 52 20' N 02 26' E(A)251(B)109(C)071>(D)289SETS1ED4XNCA028N130.A vessel is on the equator and steams on a course of 000T for 1410 miles. What is her new latitude?(A)14 10' N(B)14 10' S>(C)23 30' N(D)23 30' SSTCW2MIAGJ3XWLN131.Who publishes the chart catalogue? >(A)Hydrographer to the Navy (B)IMO(C)ICS(D)HMSO SETS1KC8DC2BT17N132.Calculate (using plane sailing) the true course to steer to the nearest degree between initial position 32 46' S 178 00' E and 32 00' S 179 50' W(A)023(B)293>(C)067(D)113SETS1S21YQ68Z7CN133.Find the difference in longitude between initial position 49 55' N 02 50' W and 49 55' N 01 22' E(A)1 28' W>(B)4 12' E(C)4 12' W(D)1 28' ESTCW2MHMXZGXPYVN134.Where can you find the symbols and abbreviations used on the Admiralty charts?

(A) Chart 5022 (B)Chart catalogue >(C)Chart 5011(D)Notices to marinersSETS1A6099EM98SN135.A vessel in initial position 60 00' N steams due east for 240 miles. Calculate the difference in longitude to the nearest minute.(A)2 00' (B)6 00'(C)3 28' >(D)8 00'SETS1H7BPXY2LA7N136.Secondary Ports associated with Standard Ports are classed in that way because..... (A)the high and low water heights are similar.>(B)the tidal curves are similar.(C)they are secondary in importance.(D)the high and low water times coincide.

SETS1U6UZZ5ZN3ZN137.Which of the following statements is true of a great circle? (A)It always cuts the equator at 90. (B)It maintains the same compass direction all along its length. (C)It intersects all meridians at the same angle. >(D)It intersects succeeding meridians at different angles. SETS1DDKEWTDSKN138.A composite great circle route is not as short a distance as a great circle route, but it is Fsometimes used instead. Why?(A)It avoids areas of heavy traffic.(B)It is the "least time" route.(C)It minimises the number of course changes.>(D)It avoids high latitudes where ice may be found.SPECTZW2UZ0WJ8N139.GPS positions are referenced to the global datum WGS 84 (World Geodetic System 1984). How may this affect chart accuracy?(A)A technical hydrographic detail which need not concern mariners. (B)It greatly enhances chart accuracy.(C)It will only affect the Raster charts.>(D)The WGS global datum may not be the same as the horizontal datum of the chart in use.SETS1A2KJ81SS1WN140.Calculate (using plane sailing) the true course to steer between initial position 50 50' N 02 00' W and 50 00' N 01 25' W>(A)156(B)024(C)204(D)336SETS1REXUU2QNYN141.Find the distance (departure) to the nearest whole mile) between position 40 29' S 120 13' W and 40 29' S 118 53' W.(A)45 miles(B)51 miles>(C)61 miles(D)80 milesSTCW2BS05ZC8SON142.What does this figure indicate on a navigation chart?(A)North cardinal buoy(B)East cardinal buoy(C)South cardinal buoy>(D)West cardinal buoySETS1XN3M00L3WN143.Calculate the difference in latitude between the following two positions: 05 20' N 20 35' W and 01 25' S 20 35' W.>(A)06 45'(B)06 15'(C)4 55'(D)03 55'STCW2YUQABIQPZN144.The relationship between the distance on the earth and the length by which that distance is shown on the navigation chart is called the ......(A)calculated scale.(B)variable scale.>(C)natural scale.(D)actual scale.SETS16YA2NRAZ0SN145.The technique used in radar pilotage for continuously monitoring a vessel's position is called...(A)cross indexing.(B)ranging.(C)stabilisation.>(D)parallel indexing.SETS1RZJ5TPRDHSN146.A vessel steamed 175 miles due east along the parallel of 4825'N. If the longitude of the departure point was 819'W, find the final longitude. (A)425'W>(B)355'W(C)619'W(D)1243'W

STCW2W5VQMJ46LN147.What charts are used for plotting Great Circle courses?(A)Instructional>(B)Gnomonic (C)Routeing(D)Passage planningSTCW26KS2C8C9CN148.What are sailing directions also known as? >(A)Pilot books(B)Guide to port entry(C)Passage planning charts(D)Routeing charts.SETS1RK0RJQEO4JN149.A vessel in initial position 38 06' S 06 50' W then steams on a course of 222 for 24 hours at a constant speed of 14 knots. Calculate (using plane sailing) the final longitude to the nearest minute. (A)12 45' W(B)01 55' W(C)10 35' W>(D)11 45' WSETS1SU0V6UDBRN150.Find the initial great circle course to the nearest whole degree, from 1448'N, 7818'W, to 3754'N, 1112'W.>(A)055(B)305(C)035(D)061SETS1R9BM8DSPON151.Charted depths are always measured below....(A)mean low water neaps.>(B)chart datum.(C)mean low water springs.(D)mean sea level.STCW2TCJ75LI9D4N152.How often is a chart catalogue published?>(A)Annually(B)Weekly(C)Twice a year(D)MonthlySETS16KL4GQ23XIN153.The commonest use of the ABC tables is to find the azimuth of a celestial body. These tables can also be used to....>(A)find the initial course in a great circle sailing calculation.(B)pre-compute true altitudes. (C)solve terrestrial triangles for plane sailing calculations.(D)determine course and distance run.STCW2SY08GFKC4N154.In what direction does the axis of the gyro-compass wheel point?(A)Magnetic North (B)Compass North>(C)True North(D)North RelativeSETS1BQEGDVFH8N155.Calculate the initial course (to the nearest degree) to steer along the great circle between position 45 36' N 8 46' W and 12 18' N 79 24' W(A)256 T>(B)265 T(C)185 T(D)275 TSET010000000183N156.Why should the largest scale chart available be used for navigational purposes?(A)Because the brightest lights are shown.>(B)Because it shows more accurate information.(C)Because it uses larger symbols.(D)Because it uses better colour.STCW2NSTRFYSJAN157.On a navigational chart, what does this figure indicate?(A)All of the other options>(B)Sector lights(C)Heading lights(D)Direction lightsSETS1KK6MK6YW4N158.When the sun and moon are in near conjunction or opposition the tides are called....(A)diurnal.>(B)spring.(C)neap. (D)full.SETS14F4L0MNKJEN159.Two vessels are in latitude 62 18' N. The longitude of one vessel is 16 42' E and of the other is 4 33' E. How far, to the nearest whole mile, are the vessels apart?(A)1568 miles>(B)339 miles(C)1275 miles(D)729 milesSPECTYZ8FCF8MBN160.Which one of the following statements refers to the motor tanker "MARION"?(A)As a result of badly corrected charts, the MV MARION was involved in a grounding in the North Sea.(B)The MV MARION was delayed by port State Control Officers when they found that chart folios were not up-to-date.(C)MV MARION was involved in a collision as a result of steaming in wrong traffic lane following poor instructions on navigation chart in use at the time>(D)As a result of using uncorrected charts, The MV MARION anchored on a new pipeline and severely damaged it.SETS1GS9JR6LDTN161.6A vessel steers 043T for a distance of 524 miles. Find the difference in latitude (to the nearest whole minute) and the departure (to the nearest whole mile).(A)Difference in latitude 242' and departure 226 miles>(B)Difference in latitude 383' and departure 357 miles(C)Difference in latitude 286' and departure 312 miles(D)Difference in latitude 338' and departure 315 milesSET010000000191N162.Where would you find information about a vessel reporting system for a port which you are about to enter?(A)Mariner's Handbook.>(B)Admiralty List of Radio Signals.(C)Ocean Passages for the World.(D)International Code of Signals.SETS1XN2MBUJ49N163.From those listed, which would be the preferred method of position fixing for greatest accuracy and certainty of position?>(A)Taking a radar range and visual bearing.(B)Taking a radar range and radar bearing.(C)Taking several radar bearings.(D)Taking several radar ranges.

STCW26H04MYF75IN164.The best position fix is obtained when the bearings of two objects are......>(A)90 degrees apart.(B)45 degrees apart.(C)180 degrees apart.(D)135 degrees apart.STCW2X1E4HGTPEN165.Which error in the echo sounder is illustrated in the diagram?(A)Multiple error>(B)Pythagoras(C)False bottom echoes(D)Velocity errorSETS1ZMV1OF19BN166.From those listed, the best land target to use for radar ranging is a.....(A)low-lying point.>(B)cliff face.(C)target such as a lighthouse.(D)small rock.SET010000000182N167.You see a two flag signal on a ship close-by. What publication would you consult to discover its meaning?>(A)International Code of Signals.(B)Nautical Almanac(C)Admiralty List of Radio Signals.(D)Mariner's Handbook.SETS1405E8ETG1BN168.What is the main factor which can make actual tidal heights and times different from the predicted heights and times?>(A)Wind.(B)Past weather.(C)Local effects.(D)Barometric pressure.SETS1X6ODLJLL78N169.Find the new longitude (to the nearest minute) if a vessel in latitude 54 23' S longitude 16 18' E steams on a course of 270 T for 874 miles.(A)1 44' E>(B)8 43' W(C)1 44' W(D)8 43' ESTCW24K8KAJLFNN170.How often are chart corrections published?>(A)Weekly(B)Monthly(C)Annually(D)Yearly

DO-01C-Plan and Conduct a Passage - Electronic Systems, Echo Sounders and Speed MeasurementQuestion CodeQuestionSPECTP0SHVQO5AN1.What is the best method of confirming the accuracy of information shown on the ECDIS display?(A)Zooming in on the ECDIS display for more detail>(B)By visual observation(C)Radar(D)Comparison with a paper chartSPECTRHWQ7I4KQWN2.Vessels capable of up to 70 knots must be able to handle craft with relative speeds of up to:

(A)160 knots.>(B)140 knots.(C)180 knots.(D)100 knots.SETS16CZEE2V2ON3.With the Loran C system, signal "blink" is used to advise users...(A)of sudden ionospheric disturbances.(B)of the possibility of skywave contamination of the signals.>(C)of some system fault.(D)to tune to VHF channel 16 as a distress message has been picked up in the area.SPECTOY7MNK4ZMQN4.All new radar displays must be capable of displaying AIS targets from:

(A)1 July 2005.(B)31 July 2007.(C)1 July 2002.>(D)1 July 2008.SPECTHYXXGLORRKN5.Which of these is not a feature of vector charts?

(A)They are open to interrogation.(B)They allow zooming in to see more detail.>(C)They use the chart-by-chart system.(D)They are multi-layered.SETS13DV3E6FVTN6.Differential GPS is...(A)The system of satellite position fixing in use prior to the current system.>(B)A system using a reference station which transmits corrections to the position obtained from GPS.(C)a shore-based system, using a chain of stations comparing Loran and GPS.(D)the system by which the difference of distance is measured from different satellites.SETS1B41J7Z1L61N7.On the paper of a chart recording echo sounder, what may cause a broad line just below the zero of the scale? >(A)Cross noise(B)Second trace echoes(C)Multiple echoes(D)Density, temperature or salinity variationSPECTRFCDLYX08N8.If you have to plan your passage after the vessel is underway, when is the best time to do >(A)In deep sea areas(B)A mile out to sea(C)As the vessel clears the harbour(D)In the estuarySETS1Y6BZC1V82YN9.Which type of log is operated by water pressure acting on a bellows? >(A)Pitometer log(B)Patent log(C)Sonar log(D)Doppler logSETS1BHOFSNGGXN10.What control on the radar is used to control the amplification of echoes received?(A)Focus(B)Differentiator(C)Brilliance>(D)GainSETS18GSJACV9LJN11.The detection range of surface targets is decreased when radar waves touch the earth's surface at a point closer than the standard radar horizon. What type of refraction is this?(A)Ducting(B)Super refraction>(C)Sub refraction(D)Normal refractionSETS15IFUQO4I3XN12.When you are using a standard echo sounder in the Red Sea, the indicated depth is 50m. The true depth...(A)Is probably less than 50m.(B)Could be more or less than 50m.>(C)is probably more than 50m.(D)is 50m.SPECTJAEUG0K9OIN13.Which of these is the most important factor to check before passage planning on an (A)The weather forecast>(B)That the most recent chart updates have been received(C)Information downloads(D)The tide levelsSPECTEFSVWRF04N14.Which of these navigational situations requires ECDIS to give more than a visual alarm?(A)The vessel crossing a specified area(B)Loss of ship's position data>(C)Approach to a critical point(D)Different references being usedSETS17HGCYEET2N15.Will snow fall reduce the ability of the radar to detect targets?(A)No>(B)Yes(C)Yes, but only with old radars which do not have a visibility compensator(D)Yes, but only with 'S' band radarsSPECT50TW44IHJDN16.What must an ECDIS operator have when using the system in RCDS mode?(A)Conversion tables to re-calculate the different scales.(B)The latest ENC update.(C)A second GPS system to provide an accurate position fix.>(D)A portfolio of appropriate paper charts.SPECTFI8NHBZTKNN17.When does an ENC become a SENC? (A)When it is given IMO approval.(B)When it is updated with new navigational information.(C)When it has been issued by a RENC.>(D)When it is has been transformed by the ECDIS into a database format.SETS1TLO7L6OCTIN18.In a modern echo sounder, the sonic or ultrasonic sound waves are produced electrically by means of...... (A)a transmitter.>(B)a transducer.(C)a transceiver.(D)an amplifier.SPECTGEFMIUHOVN19.How does an ECDIS in RCDS mode trigger an alarm about a navigational hazard?(A)The potential hazard and location has to be entered electronically into the ECDIS system.(B)Such hazards can be pre-set automatically to trigger an alarm.>(C)Information on the possible hazard has to be entered into the system by the operator.(D)The ECDIS system in RCDS mode is not capable of triggering an alarm.SPECT3TY9OYVQLN20.Which chart display first appears on the ECDIS screen when it is switched on?(A)Display base>(B)Standard display(C)Start-up display(D)Head-up display

SETS1I69IU5KTZON21.With regard to radio signals, sky waves are...(A)any signals received from beyond "line of sight".>(B)signals reflected from the ionosphere back to Earth.(C)signals "bounced" off the cloud layers to maximise distance.(D)signals reflected from the Moon or Sun back to Earth.SPECTQKI61MZ52SN22.How many levels of warning does an ECDIS give alerting the operator to a hazard? >(A)Two(B)Five(C)Three(D)One

SETS1I9KZO00ZQCN23.Which control on the radar is used to suppress echoes from the sea?>(A)Anti-clutter.(B)Differentiator.(C)Tuning.(D)Gain.SETS1AOJ9XELPZ9N24.The number of cycles of a radio wave which pass a fixed point in a given time is called the...>(A)frequency.(B)speed.(C)wavelength.(D)amplitude.SETS1F2T0DITC4PN25.Adjacent Loran C chains overlap, but do not interfere with each other, because they transmit...... >(A)at different group repetition intervals.(B)at different frequencies.(C)in different time slots.(D)pulse modulated signals.SETS1O6X1P5XA69N26.Successive reflection of the sound energy between a rocky sea-bed and the ship's bottom may cause...... (A)cross noise.(B)second trace echoes.(C)a zero mark.>(D)Multiple echoes. SETS16IFHX88PT7N27.The frequency of a radio wave is...(A)the speed which a radio wave passes a given point.(B)the distance from the crest of one wave to the next crest.(C)the number of metres of wavelength per second.>(D)the number of wavelengths which pass a given point in one secondSETS1D0KNH0QSDN28.Why, in the GPS system, can position on the Earth's surface not be determined simply by measuring the distance from two satellites?(A)Because the distance is too great for accurate distance measurement.(B)Because three position lines are always needed for a good "fix".(C)Because the two satellites transmit on the same frequency.>(D)Because of possible clock error in the ship's receiver.SPECTCYMH4QIMLN29.Which of the following pieces of information is not provided by ARPAson tracked targets?>(A)vessel length(B)bearing(C)TCPA(D)CPASPECT4DCGRTSQ5N30.Which of these is a problem with vector charts?(A)They are not capable of showing underwater hazards.>(B)They do not yet cover every sea area in the world.(C)They are difficult to operate.(D)They are difficult to upgrade with new navigational information.SETS1YHP581M69N31.When you are using an echo sounder, the problem of aeration is likely to occur when going astern, but is likely to be worst when the vessel is...... (A)in shallow water.(B)in deep water.(C)loaded.>(D)at light draft.SETS10YZ15AI3HUN32.To provide accurate target bearings the radar beam must be...(A)wide in the vertical plane(B)narrow in the vertical plane>(C)narrow in the horizontal plane(D)wide in the horizontal planeSETS1AILDSE216LN33.Radio signals travel at approximately a speed of...(A)3 million metres per second.>(B)300 million metres per second.(C)3000 million metres per second.(D)30 million metres per second.

SETS11UJR0SVDSDN34.Sound waves will travel through...>(A)gases, liquids and solids(B)gases and liquids only(C)a vacuum, gases, liquids and solids(D)a vacuum, liquids and solidsSETS18G3LKTS48UN35.Which type of log is operated by the water moving past a magnetic coil?(A)Pitometer log.(B)Doppler log.(C)Patent log.>(D)Electromagnetic log.SETS1IX1JVIBQ78N36.The main source of error in a GPS position would be from...... >(A)Satellite clock error.(B)There is no error with GPS.(C)Receiver error.(D)relativity error.SETS13QVZ7MV7CN37.The GPS system uses...>(A)UHF radio signals.(B)HF radio signals.(C)LF radio signals.(D)MF radio signals.SETS1CAAVH2RCKN38.Which of these is true concerning the maximum distance of reception of the ground wave of a radio signal?(A)The lower the amplitude the longer the distance.(B)The longer the wavelength, the shorter the distance.>(C)The lower the frequency, the longer the distance.(D)The higher the frequency, the longer the distance.SPECTT0QDZNF7AN39.What is the minimum period for which your navigational instruments should run from your emergency power supply?(A)48>(B)18(C)24(D)12SPECTXJ2I7GLA50N40.Which of these events would trigger only a visual warning on ECDIS?(A)Deviation from route>(B)Failure of the positioning system(C)Approaching a critical point(D)Crossing a safety contourSPECTWA84NUCHD0N41.What does a raster chart look like?

>(A)A standard paper chart.(B)A satellite photograph of a sea area.(C)A standard paper chart without any shore navigational features.(D)A satellite photograph of a sea area laid over a standard paper chart.SETS1OYE7JUKGTN42.Which type of log is operated by measuring the shift of frequency of the returned echo?>(A)Doppler log(B)Electromagnetic log(C)Pitometer log(D)Patent logSETS1OUMSF3PM4N43.What measures may be taken to minimise dangers from blind spots on a radar screen?(A)Frequent change of gain, by increasing or decreasing.(B)Frequent tuning of the radar set.>(C)Frequent change of PRF from low to high and vice versa.(D)Frequent change of sea clutter by increasing and decreasing.SETS1DTCJDE2E7AN44.How many satellites need to be "in view" In order to fix the position on the sea surface by the GPS system?(A)4(B)1>(C)3(D)2SETS1YAPORE77QN45.In an echo sounder, what converts the electrical signal into sound?(A)The amplifier>(B)The transducer(C)The signal generator(D)The modulator

SPECTJTJYOKWBKN46.After a rapid manoeuvre, the radar picture may not be accurate for up to:(A)5 minutes.(B)2 minutes.>(C)3 minutes.(D)1 minute.SPECTVY74ULVGTN47.The new IMO performance standards stipulate that historical informationshould be available in the form of symbols that show at least:(A)2 equally time-spaced positions over the past 4 minutes.(B)10 equally time-spaced positions over the past 20 minutes.>(C)4 equally time-spaced positions over the past 8 minutes.(D)6 equally time-spaced positions over the past 12 minutes.SPECTPLMHCT1FAN48.Which organization has set the specifications for ECDIS?(A)IMO(B)USCG(C)NOAA>(D)IHOSETS1Q6WHFYXGUN49.The wavelength of a radio wave is the distance...(A)from the beginning of the wave to the position where it next crosses the zero or baseline.>(B)from the beginning of one cycle to the beginning of the next.(C)from the crest of the wave to the lowest point.(D)from 0 to 180 on the plotted graph.SETS17L1C9SS6P2N50.Why do you have to take note of the chart datum before plotting a GPS position?(A)Because the GPS satellites transmit signals using a number of different datum points.(B)Because the GPS receiver is set up to receive only to one datum.>(C)Because different charts are produced from many different datum or reference points.(D)Because of "continental drift" - the movement of land masses over time.SETS1H0UWZVX1RN51.The speed of sound in water is highest in....>(A)warm, highly saline water(B)cold, highly saline water(C)cold, fresh water(D)warm, fresh waterSETS1OJM9XT1PVN52.A Loran C system uses...>(A)the time difference between signals from two stations to determine a position line.(B)two stations transmitting at the same time to determine a position line.(C)the phase difference between signals from two stations to determine a position line.(D)the difference in the number of pulses received from two stations to determine a position line.SETS1BK9JCPMANN53.Frequency, velocity and wavelength of radio signals are linked by the formula>(A)frequency = velocity divided by wavelength.(B)wavelength = frequency multiplied by velocity. (C)velocity = frequency divided by wavelength.(D)frequency = velocity multiplied by wavelength.SETS128ANCVL1MN54.When you are using a Loran C receiver, you switch on the control labelled "extended range". This has the effect of...... (A)increasing receiver sensitivity.>(B)increasing the likelihood of skywave contamination.(C)Introducing pulse integration.(D)utilizing transmissions from adjacent chains.SETS14J1IUF8OKYN55.In a hyperbolic navigation system, accuracy of a position line is greatest...(A)near the baseline extension.(B)near to one of the stations.>(C)near the perpendicular to the baseline.(D)near to where the difference of distance is greatest.SETS1SEULAXIC0QN56.What is the definition of a hyperbola?(A)A line joining all points which are an equal distance from two places.(B)A line on the Earth's surface, which is an equal distance from a satellite.>(C)A line joining all points where the difference in distance from two places is the same.(D)A line on the Earth's surface whose plane cuts the centre of the Earth.SPECTY84UXPEQ0N57.When using ECDIS in RCDS mode what officially-approved back-up do you need? >(A)Paper charts(B)ARPA(C)A second GPS(D)Another ECS

SETS1EN8IYVXBPCN58.The GPS system uses satellites which...(A)are geostationary, but distributed around the Earth.(B)are on orbits parallel to the equator and distributed to near the poles.(C)are on polar orbits, separated by longitude.>(D)circle the Earth approximately twice each day in a precise orbit.SETS19O68RCFIJ7N59.Which of these radar range scales would you use in a congested channel?>(A)1 to 6 miles(B)18 miles(C)24 miles(D)12 milesSPECT14GMHA99UN60.What are the four main components of an ECDIS?(A)A computer, screen, electronic charts and radar(B)A computer, printer, scanner, and display screen>(C)A computer, electronic charts, colour display screen and operator's controls(D)A computer, electronic charts, display screen and speakerSETS1V6DZWWVJFN61.Which of these is NOT a source of error in the GPS system?>(A)Phase shift in the signals from the satellites.(B)Ionosphere and troposphere delays.(C)Receiver clock errors.(D)Poor satellite geometry.SPECTP6WYL60WQYN62.How can an ECDIS operator know if part of his electronic chart is based on unofficial data?

(A)The suspect section is marked in red.(B)The suspect section should flash.>(C)The suspect section may have hatching around it.(D)The suspect section will have 'unofficial' written across it.SPECTNNCIXY63L9N63.What should the Master or Bridge Team agree upon about the ECDIS at the start of a voyage?(A)The colours used on the display screen.>(B)What levels of information should be kept on display as standard.(C)How loud the alarms should be.(D)During which watches it should be in operation.SPECTM9C7D2310N64.Why is it important to use official electronic charts?(A)They have more detail than unofficial charts.(B)They are in English and easier to understand.>(C)Unofficial charts do not meet the regulations permitting their use in passage planning.(D)Unofficial charts are usually out of date.SETS12HZYU7XD46N65.Which type of log can measure sideways movement as well as ship's speed?>(A)Doppler log(B)Pitometer log(C)Patent log(D)Sonar logSETS18REHHCVTKN66.Which of the following is NOT necessarily the case when two radio signals are "in phase"? (A)Both signals have the same wavelength.(B)One signal has the same frequency as the other.>(C)One signal has the same amplitude as the other.(D)Both signals are travelling at the same speed.SETS1E58MXCB5BN67.The accuracy of a Loran C position depends upon...(A)the accuracy of measuring the time delays between signals.(B)the position of the ship in relation to the baseline.(C)the angle between the Loran lines of position.>(D)all of the other options.SPECT3EDFMDTD5N68.What is the difference between an ENC and other electronic charts?(A)An ENC is easier to view than other electronic charts.>(B)An ENC is an officially approved vector electronic chart.(C)An ENC has more navigational features than any other electronic chart.(D)An ENC is an officially approved raster electronic chart.SETS1OKU49GGGJN69.What is the approximate speed of sound in sea water?>(A)1500 metres per second.(B)300 million metres per second.(C)3000 metres per second.(D)3 million metres per second.

SPECTN4RRZ2DT9N70.How many waypoints can an ECDIS normally store?(A)29(B)9(C)99>(D)999SETS1TBY1LKONKN71.The GPS system uses radio signals which are...(A)bounced from satellite to Earth and back to satellite.>(B)line of sight from satellite to ship.(C)sky waves.(D)ground waves.SETS10VOAKQUKHWN72.Loran C range using ground waves is...

(A)only a little over line of sight.>(B)about 700 to 1000 miles.(C)approximately 100 miles.(D)about 3000 to 4000 miles.SETS1WHPNQQ7YV7N73.Which of the following are NOT true concerning GPS?

(A)Satellite signals are accurate because they have atomic clocks on board.>(B)The system is designed so that 6 satellites are visible at any given time, anywhere in the world.(C)Receiver clocks don't have to be perfect because a fourth satellite range measurement is taken to cancel clock range.(D)Accurate timing is the key to measuring distance to satellites.SETS1QF9HGGS5UN74.The speed of sound in water depends upon...... (A)temperature and pressure only>(B)temperature, salinity and pressure(C)Temperature only(D)salinity and temperature onlySPECT9QT0IS45YTN75.When using RNCs, what does the message ' shift not known' mean when it appears on an ECDIS screen?>(A)The ECDIS cannot match the datum of the RNC.(B)The ECDIS is signalling a prohibited manoeuvre by the operator.(C)The operator has chosen a chart for display which the ECDIS does not have.(D)The operator tried to input data from another instrument not connected to the ECDIS.SPECTSNR7TK55AN76.Performance standards state that radar tracking devices must identify a vessel's relative motion trend within:(A)2 minutes.(B)5 minutes.>(C)1 minute.(D)3 minutes.SPECT9JBCY20JMNN77.How many targets should radars fitted on ships over 10,000 GT be able to track simultaneously?>(A)40(B)50(C)20(D)10SPECTLQRNVM7I76N78.What is the 'dual-fuel' system?>(A)When the ECDIS can display either a raster or vector chart(B)When the ECDIS can display radar and ARPA information at the same time(C)When the ECDIS can be powered by either the ship's power supply or its own (D)When the ECDIS can display both a raster and vector chart on screen at the same time SPECTMCJMMDM7N79.The IMO requires there to be a trial manoeuvre facility included in all target tracking devices TFon:>(A)ships over 10,000 GT.(B)ships over 500 GT.(C)no ships: it is just an optional extra.(D)ships over 20,000 GT

SPECTU5TM5QU7RN80.How does an ECDIS operator ensure the electronic chart in use is on the same scale as other sensor information being input?(A)The ECDIS will not accept sensor information on a scale different to the electronic (B)By checking the scales on each item in operation and adjusting them to match the ENC or RNC.>(C)The ECDIS should provide an indication if there is a scale mis-match.(D)By adjusting the scale of the ENC or RNC to match those of the sensors.SPECTY6ZTYJW2GN81.If you are using an unofficial electronic chart how would your system be classified?>(A)As an ECS(B)As an ECDIS(C)As a SENC(D)As an RCDSSETS1S3V1Q730SN82.When obtaining a fix by radar, which is most accurate?(A)A fix obtained by bearing and range.(B)All of the other options are equally accurate.(C)A fix obtained by cross bearings.>(D)The intersection of the arcs obtained using the ranges from the objects as radii.SPECT8OC6NR6QXN83.AIS uses:(A)radar and VHF frequencies.(B)Only GNSS frequencies>(C)VHF frequencies and GNSS.(D)radar and GNSS.

SETS1G8N9TBRMQN84.What is the name given to unwanted radial lines that sometimes appear on the radar (A)Racking(B)Ranging(C)Starring>(D)SpokingSPECTEY1ZDD39LVN85.What are the three required display range scales for ARPAs?(A)12, 18 and 24 nm(B)6, 12 and 24 nm(C)12, 18 and 36 nm>(D)3, 6 and 12 nmSETS1A4T30AYOLZN86.Which of the following would NOT be a cause of possible aeration, causing problems to the echo sounder?(A)Going astern.(B)Overboard discharges.>(C)The tide rising and falling.(D)The ship pounding and pitching heavily.

DO-01D-Plan and Conduct a Passage - Compasses: Magnetic and Gyro and Steering Control SystemsQuestion CodeQuestionSTCW2Z1EUYMB3EN1.Magnetic Compass - If var =6E ; dev =3W, What is the compass error?(A)9W>(B)3 E(C)3W(D)9ESTCW21TFK077U4YN2.The point at which the helm must be applied to achieve a required course alteration is called the ......(A)way-point.(B)abort-point.>(C)wheel-over position.(D)drift-point.STCW2YAJH966FGN3.If ship's head by compass was 045 ( C ), What is the true course if the variation is 5W and the deviation is 9.5 W?(A)054.5 ( T )(B)050 ( T )>(C)030.5 ( T )(D)059.5 ( T )SETS1U4S8UPG5DN4.All gyro compasses, when on the equator, should have...(A)an error depending upon the course.(B)an easterly error.>(C)no latitude error.(D)a westerly error.SETS10W76FZBQWN5.Magnetic variation changes its value with... >(A)the vessel's position on the earth. (B)the change in direction of the vessel's heading. (C)the location of the compass within the vessel. (D)the vessel's trim or heel. SETS1652WLXCUBN6.A gyro compass on a high-speed craft often takes time to settle correctly when altering course. What causes this problem?(A)The unsteadiness of high-speed craft, due to heel when altering course at high speed.(B)The vibrations caused by light displacement ships at high speed.>(C)The change in the (large) value of the latitude course and speed error when altering course.(D)The accelerations of high speed craft, producing additional errors.SETS1ZQ854TVJT3N7.What is the main purpose of frequently recording deviation of the ship's magnetic compass in a log or compass deviation book?>(A)To enable unforeseen changes to devaition to be quickly detected.(B)To provide evidence in the event of a collision, grounding or other such incident.(C)To enable the compass adjuster to calculate the sizes and locations of the correctors.(D)To provide for accurate planning of courses in passage plans.SETS1FUODE2BCCN8.The effect of gravity control makes the axis of the gyroscope...(A)move clockwise around a central position in an ellipse.(B)move anticlockwise around a central position in a circle. (C)move clockwise around a central position in an ellipse.>(D)move anticlockwise around a central position in an ellipse.SETS1DEWL7SMZEN9.If the axis of a free gyroscope on the equator is horizontal, the northerly end of the spin axis will...(A)drift west and tilt up.>(B)tilt up if to the east of the meridian.(C)drift east and tilt up.(D)tilt up if to the west of the meridian.

SETS1NPIM0GO1UN10.With reference to magnetism, soft iron...(A)can only be magnetised by a strong inducing field.(B)is iron which retains its magnetism when the inducing field is removed.>(C)means that it can change its polarity without change of position.(D)cannot be magnetised.

SETS1AX6XCAKE1N11.Free gyroscopes are turned into gyro compasses by utilising...(A)the rate of spin of the wheel.(B)the spin of the earth.>(C)gravity.(D)the torque of the wheel.SETS1757T6E4Z7UN12.Latitude , course and speed error of a gyro compass...(A)applies only to gyros which are damped in tilt.(B)does not occur in a properly set up gyro compass.>(C)applies to all gyro compasses.(D)applies only to gyros which are damped in azimuth.SETS1UOTBB07738N13.From those listed, which are "soft iron" correctors?(A)The fore and aft correctors.(B)The heeling error correctors.(C)The athwartship correctors.>(D)The spheres.SETS1KS2CJ8707DN14.The gyro course is 332 and the gyro error is 2 High. What is the true course?(A)334(B)332>(C)330(D)It could be any of the other options.SETS1HNSGBLXJ21N15.A magnetic compass is subject, if certain objects are placed nearby, to interference which may affect the heading shown. From those listed, which is NOT likely to do so?>(A)Coins (money).(B)A portable radio receiver.(C)A mobile phone.(D)A lap-top computer.SETS1MVAW6X8ZHN16.The ship's magnetic compass should be adjusted following certain circumstances. From those listed, which is NOT one of those circumstances?(A)When electrical equipment is installed in the vicinity of the compass.(B)When it appears unreliable.>(C)When a new Master joins the ship.(D)When major structural repairs have been carried out.STCW2WH4J81CO9QN17.Magnetic compass - Var = 7W ; Dev = 12E ; What is the compass error?

(A)19W(B)19E(C)5W>(D)5ESETS1DGHZG7PD0N18.When a force is applied at right angles to the spin axis of a free gyroscope, the axis W>(A)at 90 to the torque in the direction of the spin.(B)at 90 to the torque in the direction of the spin.(C)at 90 to the torque in the opposite direction to the spin.(D)at 180 to the torque in the opposite direction to the spin.SETS1LS8ZU1W2LFN19.How is a ship's permanent magnetism acquired during building?>(A)By the hammering and heating processes while heading in the same direction in the building yard.(B)By the sum of all the magnetic forces of the individual components.(C)By the designers who ensure that the magnetic effects are within limits imposed under the class of the ship.(D)By the insertion of permanent magnets into the structure, to offset the inducing forces.

SETS1791ABP9YNVN20.From those listed, which of the statements about magnetic variation is true?(A)The value of variation at a particular place is always the same.(B)The value of variation is due to the combined influences of the ship and the earth.(C)The value of variation varies according to the magnetic influences of the ship.>(D)The value of variation at a place changes slowly.

SETS1NXXT56HTGIN21.Precession in relation to a free gyroscope is...(A)the change of direction of the spin axis when a force is applied in the direction of the axis.(B)the rate of change of direction and tilt of the spin axis due to the rotation of the earth.(C)the rate of change of direction of the spin axis due to the rotation of the earth.>(D)the change of direction of the spin axis when a force is applied at right angles to the axis.SETS1USFY6Q4KTN22.The ship's magnetic compass should be especially checked for error following certain circumstances. From those listed, which is NOT one of those circumstances?(A)After carrying cargoes with magnetic properties.(B)After using electromagnetic lifting appliances to load or discharge.>(C)If the ship has visited an area with a large value of variation.(D)If the ship has been laid up for a period.SETS1WJNMGMEON23.Where do you find a note of the annual rate of change in the magnetic variation at a place? MG>(A)In the compass rose of the charts for the area. (B)In the latest Notices to Mariners. (C)In Local Notices to Mariners. (D)In the Nautical Ephemeris. SETS1J6B6BV7QEAN24.If a ship is built in a yard while heading north, the poles of permanent magnetism will be...>(A)red to the bow and blue to the stern.(B)if built in the northern hemisphere, red to the bow, if built in the southern hemisphere blue to the bow.(C)if built in the northern hemisphere, blue to the bow, if built in the southern hemisphere red to the bow.(D)blue to the bow and red to the stern.SETS1ZVCFZ9EZ82N25.The axis of a free gyroscope is pointed at a star. From those listed, which is NOT correct?>(A)The axis cannot be disturbed from this direction while the rate of spin is maintained.(B)The axis will circle the north celestial pole in an anti-clockwise direction.(C)The axis will stay pointing at the star.(D)The axis will circle the celestial poles once in 23h56m approximately.SETS1TN2N367PU6N26.Magnetic compass deviation changes with....(A)speed.(B)longitude.>(C)heading.(D)draught.SETS12XCCALGZON27.Latitude error means that, in the northern hemisphere, the north end of a gyro compass (damped in tilt) settles...>(A)to the east of the meridian and above the horizontal.(B)to the west of the meridian and below the horizontal.(C)to the west of the meridian and above the horizontal.(D)to the east of the meridian and below the horizontal.SETS1F0A2XSU6IGN28.How many points of the compass are there?(A)24(B)40>(C)32(D)36SETS1DUYEDMI0KN29.If a ship is built in a yard while heading east, the poles of permanent magnetism will be...>(A)red to port and blue to starboard.(B)if built in the northern hemisphere, red to port, if built in the southern hemisphere blue to port.(C)blue to port and red to starboard.(D)if built in the northern hemisphere, blue to port, if built in the southern hemisphere red to port.SETS1B9FUX99B3BN30.Compass error is...(A)the angle between magnetic and compass north.(B)the angle between magnetic and true north.>(C)the angle between magnetic compass