U.S.C.G. Merchant Marine Exam QMED Q806 Fireman ... statement is true concerning a propulsion steam...

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U.S.C.G. Merchant Marine Exam

QMED

Q806 Fireman-Watertender

(Sample Examination)

Page 1 of 21 Q806 Fireman-Watertender

8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5

Choose the best answer to the following Multiple Choice Questions.

1. By which of the listed methods may heat be transferred from one body to another?

o (A) Convection o (B) Conduction o (C) Radiation • (D) All of the above

If choice D is selected set score to 1.

2. The depth of fuel oil in a tank is normally measured through the __________.

o (A) vent line o (B) overflow line o (C) feed line • (D) sounding tube


3. Which of the following precautions should be taken prior to lighting off a boiler?

• (A) Purge the furnace of combustible gases. o (B) Bottom blow the mud drum. o (C) Close the air register. o (D) Secure the main steam line drains.

If choice A is selected set score to 1.

4. What statement is true concerning a propulsion steam turbine turning (jacking) gear?

o (A) The jacking gear splined clutch is associated with the low-pressure turbine second reduction pinion.

o (B) The jacking gear splined clutch is associated with the low-pressure turbine first reduction pinion.

• (C) The jacking gear splined clutch is associated with the high-pressure turbine first reduction pinion.

o (D) The jacking gear splined clutch is associated with the high-pressure turbine second reduction pinion.

If choice C is selected set score to 1.


8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 5. What is the normal destination of steam exiting a main feed pump drive turbine?

o (A) SSTG condensers via the auxiliary exhaust steam line. o (B) Main condenser via the auxiliary exhaust steam line. o (C) Deaerating feed tank via the main feed pump discharge line. • (D) Deaerating feed tank via the auxiliary exhaust steam line.


6. If for any reason it is necessary to abandon ship while far at sea, it is important for the crew members to __________.

o (A) separate from each other as this will increase the chances of being rescued o (B) get away from the area because sharks will be attracted to the vessel o (C) immediately head for the nearest land • (D) remain together in the area because rescuers will start searching at the vessel's last known

position


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

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


8. As a firefighting medium, CO2 can be dangerous under certain conditions as it can cause __________.

o (A) hallucinations o (B) carbon monoxide poisoning o (C) undulation • (D) freeze burns and blistering


9. Which of the components listed prevents water from flowing back into the auxiliary exhaust line if the deaerating feed tank becomes flooded?

• (A) Check valve o (B) Reverse-acting relief valve o (C) Pumps o (D) Exhaust piping



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 10. While raising steam on a cold boiler, the air cock is to be closed after __________.

o (A) the economizer drain is closed • (B) steam has formed and all air is vented o (C) all burners have been lit and firing normally o (D) the boiler is cut in on the line

If choice B is selected set score to 1.

11. The term referring to the number of teeth per inch on a hacksaw blade is known as the __________.

o (A) set • (B) pitch o (C) rake o (D) thread gauge


12. If you noted a large difference in the pressures indicated by a duplex pressure gage to the fuel oil system strainer, you should __________.

• (A) shift to a clean fuel oil strainer o (B) secure the fuel oil service pump o (C) increase the fuel pump discharge pressure o (D) reduce the firing rate of the boilers


13. For the gland seal regulator shown in the illustration, an increase in gland seal pressure will result in ________. Illustration SE-0019

• (A) piston "F" moving upward to shut the makeup steam valve "B" and open the exhaust valve "E" o (B) piston "F" moving downward to shut the makeup steam valve "B" and open the exhaust valve

"E" o (C) piston "F" moving upward to open the makeup steam valve "B" and close the exhaust valve

"E" o (D) piston "F" moving downward to open the makeup steam valve "B" and close the exhaust

valve "E"


14. An air compressor is equipped with an intercooler and an aftercooler to __________.

o (A) inject water vapor into the compressed air o (B) prevent overheating of first stage valves • (C) increase compressor efficiency and economy o (D) reduce the compressed air charge density



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 15. The steam drum in a D-type marine boiler __________.

o (A) maintains circulation by forcing steam bubbles downward in the generating tubes o (B) acts as a receptacle for heavy suspended solids in boiler feedwater o (C) supports the superheater tube bank • (D) provides a space for moisture to separate from the steam


16. Which of the following modes of heat transfer does NOT require any physical contact between a warmer and a cooler substance?

o (A) Lamination • (B) Radiation o (C) Conduction o (D) All of the above


17. What type of wound is most susceptible to a tetanus (lockjaw) infection?

o (A) Abrasion o (B) Incision o (C) Laceration • (D) Puncture


18. If a boiler is brought on the line with its steam pressure much higher than that of the boiler already on the line, there is danger of __________.

o (A) thermal shock o (B) low water o (C) an overloaded superheater • (D) priming and carryover


19. Concerning the classification of steam turbines, a cross compound designed unit __________.

o (A) consists of reaction stages and a dummy piston • (B) consists of a high-pressure turbine, crossover pipe, and low-pressure turbine o (C) is made up of a varied assortment of impulse and reaction staging o (D) consists of one Curtis stage and reaction blading



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 20. In addition to sensing steam drum water level and boiler steam flow, what additional sensing input

does a three-element feedwater regulator control system utilize?

o (A) Boiler fuel flow o (B) Boiler flue gas flow • (C) Boiler feed flow o (D) Boiler air flow


21. To prevent pulsations from developing in the boiler feedwater lines, the discharge side of a reciprocating feed pump is equipped with a/an __________.

o (A) feedwater regulator • (B) air chamber o (C) reed valve o (D) relief valve


22. The physical difference of the water spray patterns developed by the high velocity tip and low velocity applicator is due to __________.

o (A) the type of fire being fought o (B) a difference in water pressure • (C) the method of breaking up the water stream o (D) the capacity of the fire pump


23. The primary objective of the auxiliary exhaust system is to supply steam to the __________.

o (A) main condenser o (B) main feed pumps o (C) soot blowers • (D) deaerating feed tank


24. The purpose of a "peep" hole in the boiler casing is to __________.

o (A) examine the condition of the refractory cones o (B) check the operation of the soot blowers o (C) check for excess smoke in the stack • (D) examine the condition of the flame



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 25. Which of the following symptoms may be observed in a victim of cardiac arrest as a result of electric

shock?

o (A) weak pulse at wrist or neck • (B) respiration is weak or has stopped o (C) flushed face o (D) all of the above symptoms


26. The emergency bilge suction valve is typically used __________.

o (A) to inject cleaning additives when the bilges are extremely dirty o (B) when the main condenser becomes fouled, in order to provide additional cooling water

circulation o (C) to connect the rose box to the independent bilge suction • (D) if the bilges become flooded and they cannot be emptied by any other means


27. At a minimum threshold, how many milliamps of current through the body produces a painful sensation that most people would perceive as an electric shock?

• (A) 3 to 7 mA o (B) 10 to 16 mA o (C) 30 mA o (D) 100 mA for 2.5 sec.


28. Basic emergency care for an electrical burn is to __________.

o (A) brush away the charred skin and wrap the burned area o (B) flood the burn with water for two minutes o (C) apply ointment or spray to the burned area and wrap with a clean cloth • (D) cover the burned area with a clean cloth and transport the patient to a medical facility


29. After the steam leaves the low-pressure turbine, it enters the __________.

• (A) main condenser o (B) turbine extraction valve manifold o (C) feed and filter tank o (D) first-stage feedwater heater



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 30. Artificial respiration may be necessary in cases of __________.

o (A) drowning o (B) poisoning o (C) electrocution • (D) all of the above


31. Which of the listed devices would be installed at a control system air pressure reducing station?

o (A) Non-return valve o (B) Vacuum breaker o (C) Lubricator • (D) Moisture separator


32. What system is represented by the simplified illustration? Illustration SE-0004

o (A) Hydraulic gland seal regulator for the turbo-generator turbines. o (B) Hydraulic throttle control for the main propulsion turbines. • (C) Hydraulic gland seal regulator for the main propulsion turbines. o (D) Hydraulic throttle control for the turbo-generator turbines.


33. Annual servicing of a hand portable CO2 fire extinguisher includes __________.

o (A) hydrostatic testing of the cylinder • (B) weighing the cylinder and recharging if weight loss exceeds 10% of the weight of the charge o (C) inspecting the pressure gauge to ensure the needle is within operating range o (D) discharging, cleaning inside, and recharging


34. The cooling water flow from an air ejector intercondenser and after condenser is discharged directly into the __________.

• (A) condensate and feed system o (B) main condenser hotwell o (C) atmospheric drain tank o (D) auxiliary condenser hotwell



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 35. In a main propulsion steam turbine installation, the condensate pump initially discharges to the

__________.

o (A) distillate tank • (B) air ejector condenser o (C) deaerating feed tank o (D) first stage heater


36. Condensate return lines from tank heating coils are led to the __________.

o (A) DC heater o (B) atmospheric drain tank • (C) contaminated drain system o (D) main condenser


37. 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 o (B) radiation o (C) windage • (D) convection


38. Fuel oil settling tanks are used to __________.

o (A) precipitate out water and solids o (B) store oil for immediate use o (C) facilitate the stripping of sludge and water • (D) all of the above


39. A fire is considered "under control" when __________.

o (A) the fixed systems are activated o (B) all firefighting equipment is at the scene • (C) the fire is contained and no longer spreading o (D) all hands are at their fire stations



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 40. Which of the devices listed would be safe to use in a compartment with insufficient oxygen?

o (A) Canister-type mask. • (B) Self-contained breathing apparatus. o (C) Dust or gas mask. o (D) Wet handkerchief.


41. Why is it necessary to have a relief valve protect the deaerating feed tank from internal pressure?

• (A) Because the tank receives high-pressure drains. o (B) Because the tank receives auxiliary exhaust. o (C) Because the tank drains to the main condenser. o (D) Because the tank receives large amounts of water.


42. The valve depicted in the illustration shown is a __________. Illustration GS-0055

o (A) gate valve • (B) butterfly valve o (C) globe valve o (D) check valve


43. What is the characteristic of the blood flow associated with arterial bleeding?

o (A) Dark red blood flowing from the wound with a steady flow. o (B) Bright red blood flowing from the wound with a steady flow. o (C) Dark red blood flowing from the wound in spurts. • (D) Bright red blood flowing from the wound in spurts.


44. Which system should be used when required to raise the water level in an idle boiler?

o (A) Main condensate system • (B) Main feed system o (C) Auxiliary condensate system o (D) Chemical feed system



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 45. Excessive water loss from the main feed system can be caused by __________.

o (A) excessive recirculation of condensate from the outlet of the air ejector condenser to the main condenser

o (B) a leak in the desuperheater internal gasket • (C) an atmospheric drain tank trap frozen in the closed position o (D) a vapor bound main condensate pump


46. The microbiological growths that affect fuel supplies can easily be transported from one location to another by __________.

• (A) air, solids, or liquids o (B) other non-hydrocarbon fuels o (C) roaches and other insects o (D) all of the above


47. Which of the following actions should be taken FIRST when the boiler fires begin to sputter due to water in the fuel oil?

o (A) Shift to the standby fuel oil heater. o (B) Shift to the standby fuel oil pump. o (C) Shift to the settler low suction valve. • (D) Shift to the settler high suction valve.


48. Which combustible element in fuel oil is considered a significant and major source of air pollution?

• (A) Sulfur o (B) Vanadium o (C) Nitrogen o (D) Hydrogen


49. A pipe coupling is a fitting having __________.

o (A) outside threads on both ends • (B) inside threads on both ends o (C) a left-hand twist o (D) outside threads on one end and inside threads on one end



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 50. The component shown in the illustration would be installed in which of the following types of fire

detection systems? Illustration SF-0004

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


51. If the condensate level in the loop seal of the air ejector intercondenser is lost, __________.

• (A) air will be drawn back into the main condenser o (B) no condensate will flow through the system o (C) the air ejector will not transfer heat to the condensate o (D) the air ejector will overheat


52. Which of the actions listed should be carried out immediately after securing the fires in one boiler of a two boiler ship?

o (A) Open the air registers wide to cool the furnace. o (B) Secure the main feed pump. o (C) Drain and refill the boiler with cold water. • (D) Relieve all fuel oil service pressure to that boiler.


53. Prior to relieving the watch you should first check the fire room status by verifying the boiler steam drum level and _________.

o (A) port and starboard settling tank levels o (B) preparing to blow tubes • (C) inspecting the fires and burners o (D) stack temperature


54. When heated, fuel oil will __________.

o (A) have a higher specific heat o (B) increase in specific gravity o (C) increase in viscosity • (D) expand in volume



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 55. During topping off of bunker tanks, the loading rate must be personally supervised by the

__________.

• (A) person in charge o (B) master o (C) chief engineer o (D) terminal operator


56. Assuming that the turbine in question is a condensing turbine, what system connections are represented by areas labeled "E" and "F" on the illustrated turbine gland? Illustration SE-0006

o (A) Both "E" and "F" represent the gland sealing steam system connections. o (B) Both "E" and "F" represent the gland exhaust steam system connections. • (C) "E" represents the gland sealing steam system connection and "F" represents the

gland exhaust steam system connection. o (D) "E" represents the gland exhaust steam system connection and "F" represents the

gland sealing steam system connection.


57. An auxiliary turbine boiler feed pump should normally be stopped by __________.

o (A) closing the exhaust valve slightly o (B) rotating the hand lube oil pump backwards o (C) increasing the load on the driven unit • (D) actuating the throttle hand tripping device


58. You notice smoke coming from an open laundry room doorway, which smells like electrical insulation. After activating the fire alarm, which of the following would be the lowest action priority?

o (A) Locate the nearest CO2 or dry chemical extinguisher. • (B) Break out the nearest fire hose. o (C) Close the door to the room. o (D) Secure power to the washers and dryers.


59. Which of the conditions listed would indicate a dirty fuel oil strainer?

o (A) Decreasing pressure drop across the strainer o (B) Decreasing fuel oil temperature o (C) Dirt and sediment deposits in the atomizers • (D) Decreasing fuel oil pressure at the burner manifold



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 60. The main reason for having a low suction line on the fuel oil service or settling tanks is to

__________.

o (A) increase the amount of fuel available for use o (B) decrease suction head on the pump o (C) prevent loss of suction during rough weather • (D) facilitate water removal


61. The source of power for the CO2 discharge alarm siren is obtained from __________.

o (A) the emergency power and lighting bus • (B) the flow of CO2 under pressure o (C) the general alarm 24 volt DC bus o (D) all of the above


62. Makeup feedwater is brought into an operating closed feed system via the __________.

o (A) auxiliary feed pump o (B) main feed pump • (C) condenser vacuum drag line o (D) feed booster pump


63. The pressure in the feedwater system must exceed boiler steam drum pressure in order to __________.

o (A) prevent air leakage into the feedwater system o (B) prevent water hammer in the lines o (C) remove the steam from the steam drum • (D) force the feedwater into the boiler


64. Which of the following statements is correct concerning heat transfer?

o (A) Heat is given off from a high temperature region known as a heat sink. o (B) Heat transfer rate is affected most by the size of the heat sink involved. • (C) Heat transfer rate is affected most by the temperature difference between the heat source

and the heat sink. o (D) Heat transfer by radiation will occur only by mass motion of a fluid substance.



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 65. In addition to moving the victim to a shaded area, placing the victim in a prone position and

loosening any tight clothing, what treatment should be administered?

• (A) The patient should be given sips of cool water salted with one teaspoon per glass at a rate of 1/2 glass every 15 minutes for one hour.

o (B) The patient should be given sips of unsalted cool water at a rate of 1/2 glass every 15 minutes for one hour.

o (C) The patient should be forced to drink large amounts of cool water salted with one teaspoon per glass within 5 minutes.

o (D) The patient should be forced to drink large amounts of unsalted cool water within 5 minutes.


66. Which of the listed order of valves represents the proper installation of the main feedwater supply line to a marine propulsion boiler?

o (A) Stop, regulator, stop-check o (B) Regulator, stop, stop-check o (C) Stop-check, stop, regulator • (D) Stop-check, regulator, stop


67. All portable electric tools should have a ground connection to prevent __________.

• (A) electric shock if the tool is shorted o (B) grounding the plastic case through a short o (C) burning out the motor from an overload o (D) overloading the motor from a short


68. As found in a reduction gear drive system, thrust bearings serve to __________.

o (A) limit the radial movement of the shaft • (B) transmit the force produced by the propeller to the structure of the ship o (C) hold the main engine in place o (D) increase the shaft speed


69. One function of the air receiver in a compressed air system is to __________.

o (A) remove all traces of oil from the air o (B) dry the air discharged from the intercooler • (C) minimize the system's line pulsations o (D) receive exhaust air from pneumatic accessories



8/31/2017

U.S.C.G. Merchant Marine Exam QMED Q806 Fireman-Watertender Illustrations: 5 70. At a minimum threshold, how many milliamps of current through the body produces a condition

where most people would be unable to let go of the energized electrical conductor due to involuntary muscular contraction?

o (A) 3 to 7 mA • (B) 10 to 16 mA o (C) 30 mA o (D) 75 mA for 5 sec.



8/31/2017


3/1/2016

GS-0055

Adapted for testing purposes only from Marine Gas Turbine Operations

NAVEDTRA 10097

Further reproduction prohibited without permission Page 17 of 21 Q806 Fireman-Watertender


12/8/2016

SE-0004

Adapted for testing purposes only FOX, Marine Steam Engines and Turbines

Copyright © 1970 by W.J. Fox & S.C. McBirnie

Further reproduction prohibited without permission



12/12/2016

SE-0006

Adapted for testing purposes only from HARRINGTON, Marine Engineering

Copyright © 1992 by the Society of Naval Architects and Marine Engineers




1/4/2017

SE-0019

Adapted for testing purposes only from HUNT, Modern Marine Engineer’s Manual, Volume I

Copyright © 1999 by Cornell Maritime Press, Inc.




5/25/2016

SF-0004

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

U.S. Department of Transportation Maritime Administration



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U.S.C.G. Merchant Marine Exam QMED Q806 Fireman ... statement is true concerning a propulsion steam...

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