U.S.C.G. Merchant Marine Exam Assistant Engineer – MODU ......Aug 28, 2019 · Q716 Engineering...

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U.S.C.G. Merchant Marine Exam

Assistant Engineer-MODU

Q716 Engineering Safety-Environmental Protection

(Sample Examination)

Page 1 of 14 Q716 Engineering Safety-Environmental Protection

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Q716 Engineering Safety-Environmental Protection U.S.C.G. Merchant Marine Exam Assistant Engineer-MODU Illustrations: 3

Choose the best answer to the following Multiple Choice Questions

1. Wooden shoring, with a cross-sectional dimension of 4" X 4" should not be longer than __________.

o (A) 8 feet • (B) 10 feet o (C) 16 feet o (D) 20 feet

If choice B is selected set score to 1.

2. An acceptable method of temporarily sealing a crack formed in the hull of a vessel is to __________.

o (A) drill holes at each end • (B) apply a patch of sheet packing backed by a strongback or shoring o (C) shore up the crack with welded braces o (D) tack weld a doubler plate over the crack


3. The bypass valve on a self-contained breathing apparatus (SCBA) bypasses __________.

• (A) the regulator in an emergency o (B) the regenerator in an emergency o (C) a breathing bag containing excessive pressure o (D) oxygen to the atmosphere

If choice A is selected set score to 1.

4. A rigid lifesaving device designed for a group of survivors to hold on to while in the water is defined as a _______.

o (A) life raft o (B) life cushion o (C) life preserver • (D) buoyant apparatus

If choice D is selected set score to 1.

5. In accordance with 46 CFR, life jackets should be stowed in __________.

o (A) the forepeaks o (B) the pumproom • (C) readily accessible spaces o (D) locked watertight containers

If choice C is selected set score to 1.


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Q716 Engineering Safety-Environmental Protection U.S.C.G. Merchant Marine Exam Assistant Engineer-MODU Illustrations: 3 6. The external flotation bladder on an immersion suit should be inflated __________.

o (A) before you enter the water • (B) after you enter the water o (C) after one hour in the water o (D) after you notice that your suit is losing buoyancy


7. When the survival craft is supplied with bottles of compressed air, they are used for __________.

• (A) personnel air supply o (B) additional flotation o (C) priming the sprinkler system o (D) filling the self-righting bags


8. When personnel are lifted by a helicopter from an inflatable life raft, the personnel on the raft should __________.

• (A) deflate the floor of the raft to reduce the danger of capsizing o (B) inflate the floor of the raft to provide for additional stability o (C) remove their life jackets to prepare for the transfer o (D) take in the sea anchor to prevent fouling of the rescue sling


9. Except in rare cases, it is impossible to extinguish a shipboard fire by __________.

• (A) removing the fuel o (B) removing the heat o (C) interrupting the chain reaction o (D) removing the oxygen


10. All of the following are part of the fire triangle EXCEPT __________.

o (A) fuel o (B) oxygen o (C) heat • (D) electricity



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11. Which of the gases listed is the poisonous gas most likely to be found in a closed compartment involved in a fire?

o (A) Nitrogen o (B) Hydrogen o (C) Carbon dioxide • (D) Carbon monoxide


12. The spreading of fire as a result of heat being carried through a vessel's ventilation system, is an example of heat transfer by __________.

o (A) conduction • (B) convection o (C) radiation o (D) windage


13. A fire involving trash and paper waste would be classified as a __________.

• (A) class "A" o (B) class "B" o (C) class "C" o (D) class "D"


14. A class "D" fire would involve the burning of __________.

• (A) magnesium o (B) diesel oil o (C) dunnage o (D) electrical insulation


15. Paints and solvents used aboard a vessel should be __________.

• (A) returned to the paint locker after each use o (B) drained into a common container after each use o (C) stowed safely at the work site until work is completed o (D) covered with a fine mesh screen to protect from ignition sources



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Q716 Engineering Safety-Environmental Protection U.S.C.G. Merchant Marine Exam Assistant Engineer-MODU Illustrations: 3 16. When required to work in an area where explosive gases may accumulate, you should use hand

tools which are __________.

• (A) non-ferrous o (B) fixed with a ferrous cover o (C) high carbon steel o (D) approved by the Coast Guard


17. Good housekeeping on a vessel prevents fires by __________.

o (A) allowing better access in an emergency • (B) eliminating potential fuel sources o (C) eliminating trip hazards o (D) improving personnel qualifications


18. Any tanks located below the vessel’s center of gravity should be __________.

o (A) cross flooded for vessel buoyancy o (B) partially filled for vessel buoyancy o (C) emptied to maximize vessel free surface effect • (D) filled to maximize vessel stability


19. Which of the following is required to be included in the fireman's (emergency) outfit?

o (A) Chemical protection face shield o (B) Approved work vest • (C) Self-contained breathing apparatus o (D) 5 cell approved flashlight


20. The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ignition is known as __________.

o (A) radiation ignition o (B) chemical ignition • (C) spontaneous combustion o (D) chemical combustion



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Q716 Engineering Safety-Environmental Protection U.S.C.G. Merchant Marine Exam Assistant Engineer-MODU Illustrations: 3 21. The component shown in the illustration would be installed in which of the following types of fire

detection systems? Illustration SF-0004

o (A) Rate-of-rise o (B) Line-type pneumatic • (C) Fixed temperature o (D) Combined fixed temperature and rate-of-rise


22. When using foam, a "Class B" fire is extinguished by __________.

o (A) replacing the fuel • (B) smothering the fire o (C) cooling the surface o (D) all of the above


23. Which of the following statements is true concerning the Halon 1301 fire extinguishing agent?

• (A) Halon extinguishes the fire by a chain breaking reaction. o (B) The agent is highly toxic as stored in pressurized cylinders. o (C) The agent is less effective than carbon dioxide. o (D) The agent cannot be used on electrical fires because it leaves a residue.


24. Which of the following statements is true concerning Halon 1301 fire extinguishing equipment?

o (A) The agent is highly toxic at normal room temperature. o (B) The agent cannot be used on electrical fires because it leaves a residue. • (C) For portable extinguishers, the agent is only available in a 2-pound unit. o (D) Halon extinguishes the fire by smothering action.


25. Which of the following statements is true concerning the fire extinguisher shown in the illustration? Illustration SF-0006

o (A) The illustrated extinguisher must never be used in conjunction with water. • (B) The agent may be applied in short bursts by opening and closing the squeeze nozzle o (C) There is no danger of reflash in using the illustrated extinguisher on a class "B" fire. o (D) The initial discharge of the extinguisher should be at close range to scatter the burning

material.



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Q716 Engineering Safety-Environmental Protection U.S.C.G. Merchant Marine Exam Assistant Engineer-MODU Illustrations: 3 26. Which of the listed characteristics applies to a semi-portable CO2 system?

o (A) The cylinders are mounted horizontally. o (B) It has distribution piping installed permanently. o (C) Each cylinder must weigh less than 50 pounds. • (D) It has a portable hose and nozzle.


27. When the cotton cover of a fire hose becomes oily or greasy, it should be washed with a solution of mild soapy fresh water and __________.

o (A) paint thinner • (B) a soft-bristled brush o (C) a wire brush o (D) cornstarch


28. A ship's low-pressure CO2 fixed fire extinguishing system is normally designed for a storage tank pressure and temperature of approximately __________.

o (A) 14.7 psia and 0 degrees Fahrenheit o (B) 150 psig and 72 degrees Fahrenheit • (C) 300 psig and 0 degrees Fahrenheit o (D) 1500 psig and 72 degrees Fahrenheit


29. During cargo operations, a deck fire has occurred due to a leaking cargo line. You should FIRST __________.

o (A) prevent the spread of fire with a foam dam • (B) stop the transfer of cargo o (C) apply CO2 on the burning fuel at its source o (D) blanket the cargo spill with foam


30. When approaching a fire from windward, you should shield firefighters from the fire by using an applicator and __________.

o (A) high-velocity fog • (B) low-velocity fog o (C) foam spray o (D) a straight stream of water



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Q716 Engineering Safety-Environmental Protection U.S.C.G. Merchant Marine Exam Assistant Engineer-MODU Illustrations: 3 31. In firefighting, the term "protecting exposures" means __________.

o (A) protecting firefighters from direct exposure to the heat of the fire • (B) taking measures to prevent the spread of fire from the involved compartment to an adjacent

compartment o (C) keeping flames from burning at the tank vents o (D) protecting exposed areas of the superstructure from flames


32. Which extinguishing agent is the best for use on electrical fires?

o (A) Dry chemical o (B) Water fog o (C) Foam • (D) CO2


33. The longer an oil fire is permitted to burn, the __________.

o (A) easier it is to control o (B) less chance there is of reignition o (C) easier it is to extinguish • (D) harder it is to extinguish


34. When fighting a liquefied natural gas fire, you should __________.

• (A) secure the source of gas, then extinguish the fire o (B) use only dry chemical o (C) extinguish the fire, then secure the source of gas o (D) use only carbon dioxide


35. If flammable vapors have penetrated a gas free space, which of the following actions would be the most hazardous to perform?

• (A) Opening switches in the space to de-energize circuits. o (B) Closing switches adjacent to the space to operate vent fans. o (C) Leaving electrical circuits energized in the space. o (D) Securing all power to the space from a remote location.



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Q716 Engineering Safety-Environmental Protection U.S.C.G. Merchant Marine Exam Assistant Engineer-MODU Illustrations: 3 36. The airborne concentrations of substances (such as hydrogen sulfide) under which nearly all

workers may be repeatedly exposed without adverse effects are called __________.

o (A) exposure limits o (B) concentration limits • (C) threshold limit values o (D) substance limit values


37. The reading of a combustible gas indicator indicates the percentage of the __________.

o (A) upper explosive limit of a flammable gas concentration o (B) concentration of flammable gas in a compartment • (C) lower explosive limit of a flammable gas concentration o (D) concentration by weight of nonflammable gas in a compartment


38. An oxygen indicator will detect __________.

o (A) concentrations of explosive gas • (B) an oxygen deficiency in a space o (C) the presence of harmful amounts of carbon monoxide o (D) all of the above


39. In accordance with 33 CFR Subchapter O (Pollution), which of the following is a mandatory section of the shipboard oil pollution emergency plan?

o (A) list of individuals required to respond o (B) plan exercises o (C) removal equipment list • (D) reporting requirements


40. Which of the following conditions is true concerning flammable liquid vapors with a concentration above the upper explosive limit?

o (A) The vapor is about to explode. o (B) The mixture is too lean to burn. • (C) The mixture is too rich to burn. o (D) Conditions are perfect for combustion.



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Q716 Engineering Safety-Environmental Protection U.S.C.G. Merchant Marine Exam Assistant Engineer-MODU Illustrations: 3 41. Which of the petroleum products listed has a flash point below 150°F?

o (A) Asphalt o (B) Lubricating oils o (C) Road oils • (D) Light fuel oils


42. Bunker "C" is classified as a grade __________.

o (A) "A" liquid o (B) "B" liquid • (C) "E" liquid o (D) "D" liquid


43. Which of the following hazards is associated with the handling of petroleum products?

o (A) Fire o (B) Asphyxiation o (C) Explosion • (D) All of the above


44. A specific document which identifies a chemical, and lists its physical properties, health hazards, required controls, firefighting procedures, cleanup methods, waste disposal, and the safe handling and storage requirements, is commonly called a __________.

o (A) Hazardous Chemical Information Sheet o (B) Hazardous Chemical Loading Document • (C) Material Safety Data Sheet o (D) Physical/Chemical Characteristics Document


45. Victual waste is __________.

o (A) the final waste product of a manufacturing process o (B) the resultant sludge that is collected after water washing a boiler o (C) the final discharge of sewage treatment plants • (D) any garbage that comes from food or food provisions



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46. In cleaning up an oil spill, the use of straw or reclaimed paper fibers would be an example of whichtype of oil removal?

o (A) Mechanical removalo (B) Chemical agent removal• (C) Absorbent removalo (D) None of the above


47. In accordance with 33 CFR Subchapter O (Pollution), the Oil Record Book for all U.S. ships________.

o (A) is to be kept in the personal possession of the mastero (B) should not be used to record the accidental discharge of oil or oily mixtureso (C) is required to have entries recorded within 48 hours of completion of the particular operation• (D) is the property of the U.S. government


48. Reserve buoyancy is the __________.

• (A) volume of intact space above the waterlineo (B) unoccupied space below the waterlineo (C) difference between buoyancy in salt and fresh waterso (D) excess of the buoyant force over gravitational force


49. The ability of a vessel to remain in a stable position is controlled by the interaction of two opposingforces, __________.

• (A) gravity and buoyancyo (B) gravity and transverse metacentero (C) stiff and tendero (D) metacentric radius and buoyancy


50. The symbol shown in the illustration used to represent displacement is __________. Illustration SF-0022

• (A) 1o (B) 2o (C) 3o (D) 4



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10/3/2018

SF-0004

Adapted for testing purposes only from Marine Fire Prevention, Firefighting and Fire Safety

Maritime Administration

Further reproduction prohibited without permission Page 12 of 14



10/3/2018

SF-0006

Adapted for testing purposes only from Damage Controlman

NAVEDTRA 14057

Further reproduction prohibited without permission. Page 13 of 14



10/3/2018

SF-0022

Vessel Dimensional Data Symbols

Adapted for testing purposes only from Merchant Marine Deck Examination Reference

Material, Operating Manual for Deep Driller

Copyright © 1989 COMDTPUB P16721.29

Further reproduction prohibited without permission Page 14 of 14


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U.S.C.G. Merchant Marine Exam Assistant Engineer – MODU ......Aug 28, 2019 · Q716 Engineering...

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