engine opt c1 feb 2015

Question Choice A Choice B Choice C Choice D Answer

1. Which of the following statement is/are not safety precaution of gas welding in acetylene tank?

Keep the valve cap off when not in use

Store valve end up

Away from combustible materials or sources of heat

Store cylinders in well ventilated, protected and dry location

A

2. When there is a fire in an electric motor, normally the first step is to ___________.

ventilate area to remove the smoke

start the fire pump and lead out hoses

apply foam extinguisher

secure the electrical supply

D

3. If one fuel oil strainer of a duplex unit becomes clogged while the vessel is steaming at sea, the first action is to __________.

open the strainer bypass valve

change the oil flow over to the clean side

clean the dirty strainer as quickly as possible

stop the fuel oil service pump

B

4. Which of the following conditions should be immediately reported to the engineering officer on watch?

Steam leaving the vent of the gland exhaust condenser.

Lube oil passing through the bull's eye of the gravity tank overflow line.

Water trickling in through the stern gland.

Oil in the drain inspection tank.

D

5. When securing a fuel oil heater, you should __________.

open the fuel oil temperature regulator bypass, widely

stop the oil flow and then cut out the steam

remove all fuel oil pressure from the system by securing the service pump

cut out the steam before securing the oil flow

D

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6. Cracked cylinder liner of a 2-stroke engine is indicated by___________.

black smoke low compression pressure

hunting of jacket cooling water pressure

excessive loss of lubricating oil

C

7. If the fire ignites in the engine room as a result of a high pressure fuel oil leak, you should first ______.

secure the ventilation

find a soda acid extinguisher

secure the generator

shut off the fuel supply

D

8. You would not see a flow through the sight glass of the lube oil gravity tank overflow line when the __________.

main engines are secured and the turning gear is engaged

main engines are turning at normal sea speed

the lube oil service pumps are secured

main engines are stationary at a stop bell

C

9. What is the proper way of storing an oxygen and acetylene cylinders?

Upright with the cylinder caps off

Upright with the cylinder caps screwed on

Horizontal with the cylinder caps off

Horizontal with the cylinder caps screwed on

D

10. Dark exhaust gas from the engine is caused by ______.

too much lubricating oil in one or more cylinder

engine overload engine running too cold

water in a cylinder B

11. To ensure that a bearing is receiving the proper oil supply, you should check the _______________.

lube oil return flow valve

sight flow glass in the bearing oil supply line

bull's eye in the gravity tank overflow

lube oil temperature at the cooler outlet

B


12. Which of the following is the most critical information that the officer in an engineering watch be relayed during taking over a watch?

The next engineer on watch

The condition and state of readiness of portable fire-extinguishing equipment and fixed fire-extinguishing installations and fire-detection systems

Any special requirements relating to sanitary system disposals

The procedures for notifying the appropriate authority of environmental pollution resulting from engineering activities

B

13. Which steam plant watch operating condition will require priority attention over the other conditions listed?

High level lube oil storage tank

Deareating tank pressure 2 psig above normal

Low water level main boiler

High level main condenser

C

14. An engine fails to start even if all temperatures and pressures are normal because______.

turbocharger is dirty lube oil pressure is low

fuel is contaminated with water

fuel oil injector in one cylinder is leaking

C

15. An auxiliary diesel generator continues to run after you try to shut down. Your next course of action should be to _________.

decrease control air pressure

block the flow of air supply to the engine

engage the jacking gear

secure the lube oil pump

B

16. In relieving watch, the outgoing duty engineer should ________________.

stop the main engine before relieving time

leave the engine room immediately

drain-out water from the fuel oil tanks

check that the reliever is capable to carry out watch keeping duties

D

17. In testing the boiler water for chloride content will indicate the amount of ____.

total alkalinity in the water

phosphates present in the water

methyl orange that should be added

dissolved salts from sea contamination

D


18. Under what condition may the master suspend the schedule of hours of rest and require a seafarer to perform any hours of work necessary?

Drills Emergency Cases Cargo loading Machinery Maintenance

B

19. The watch engineer finds the refrigeration compressor has blown the shaft seal. In this situation, he should __________.

pump the system down and isolate the leak

close the suction valve, secure the compressor, and then replace the shaft seal

tighten the shaft seal packing to reduce leakage, slow the compressor, and operate the expansion valves by hand until repairs can be made

secure the compressor at once and close the suction and discharge valves

D

20. Below are some of the causes of high exhaust gas temperature except __________.

injection of fuel is too late

leaky fuel oil nozzle for injector

poor quality of fuel oil

excessive carbon deposit on the exhaust valve

C

21. Before the turning gear is engaged, precaution should be taken to________________.

transfer M/E control to emergency control console of the engine

close the inlet and outlet valves of cooling water


shut off the starting air supply and open the indicator cocks

D

22. Fuel oil enters the main engine cylinder through ______________.

plunger and barrel starting valve fuel oil injector oil spill valve C

23. Not properly vented main engine jacket cooling water can __________.

easily cool the engine

cause overheating cause scaling lower main engine power

B


24. Which of the following is an example of head hazard? I. Impact from falling, II. Flying Object, III. Hair entanglement

I and III II and III I, II, and III I and II C

25. If the engineer on watch is doubtful of the accuracy of water level in the boiler gauge glass, he should ____.

speed up the main feed pump

open the auxiliary feed line

start the stand by feed pump

blow down the gauge glass

D

26. When the engine is running, a leaking air starting valve is indicated by_____.

hot pipe connected to the starting valve

a hissing sound from the indicator cock

. knocking sound low power develop A

27. The hours of rest may be divided into no more than two periods, one of which shall be at least how many hours?

6 hours 2 hours 3 hours 4 hours A

28. All persons who are assigned duty as officer in charge of a watch or as a rating forming part of a watch and those whose duties involve designated safety, prevention of pollution, and security duties shall be provided with a rest period of not less than ________________.

77 hours in a 7 day period




A

29. Which of the conditions listed would cause the stern tube lube oil header tank level to decrease?

A worn or damaged stern tube seal.

An increase in sea water temperature.

The entry of sea water into the system.

An increase in the stern bearing operating temperature.

A


30. Prior to taking over the engineering watch, which of following responsibilities shall an officer of an engineering watch rely to the incoming watch?

Type and quantity of cargo

Master's standing order

C/E standing orders of the day

Next port of call C

31. How many weeks shall an expection of 70 hours in a week be granted by the administration?

2 weeks 1 week 3 weeks 4 week A

32. All portable electric tools should have a ground connection to prevent _________.

grounding the plastic case through a short

electric shock if the tool is shorted

burning out the motor from an overload

overloading the motor from a short

B

33. Prior to engaging the turning gear, precautions should be taken to________________.


close the inlet and outlet valves of cooling water



D

34. When there is sufficient reason that the relieving officer is not capable of watch keeping duties, the outgoing in charge of the engineering watch should ________________.

stop the main engine immediately

all of these None of the stated options

notify the chief engineer officer

D

35. Before using a boiler compressed air soot blower system, you should __________.

reduce the boiler pressure

lower the water level

decrease the forced draft fan speed

drain the soot blower pneumatic operating lines

D

36. An engine with high exhaust temperature but low compression is due to_____________ .

too much fuel oil broken piston leaking valve insufficient air C


37. When maneuvering, you discover heavy smoke coming from the turbocharger casing. What action should you take first?.

Check the cooling water temperature

Notify the bridge and ask to shut the engine down

Check the air filter for dirt

Check for an exhaust leak

B

38. When the machinery spaces are in the periodic unmanned condition, the designated duty officer of the engineering watch shall be ________________.

None of the stated options

in a ship compartment that has an alarm

at the poop deck and wait for the call of the able seaman

all of these B

39. Cylinder oil is used for _________.

2-stroke engine 4-stroke and 2 stroke engine

4-stroke engine gasoline engine A

40. As a duty engineer you should know that some auxiliaries are not designed to handle steam at boiler pressure. Which of the following devices is usually fitted in the branch line to deliver steam at the correct pressure?

A constant quantity regulating valve

A steam pressure reducing valve

An orifice A nozzle valve B

41. As an engineer which action should you normally take during each watch when the auxiliary boiler is operating?

Inspect and clean burner oil solenoid valve

Observe general performance of the boiler

Clean all duplex oil strainers

. Lift the safety valve by hand

B

42. The flash point of a residual fuel oil should be used to determine the highest temperature to which the oil may be heated __________.

for centrifuging in the recirculating line

in a storage tank for atomizing C


43. While inspecting the steering gear at sea, you should check for __________.

any leaks in the system

accuracy of the rudder angle indicator

movement of the trick wheel

air bubbles in the sight glass

A

44. What is the minimum number of hours of rest in a 24 hour period?

10 hours 12 hours 14 hours 16 hours A

45. Under what condition shall the officer in charge of the engineering watch shall ensure that permanent air or steam pressure is available for sound signals?

Normal Sea Operations

Restricted visibility Coastal and congested waters

Ship at anchor B

46. What condition shall the chief engineer officer consult with the master whether or not to maintain the same engineering watch as when under way?

sheltered anchorage

Cold lay up Hot lay up Unsheltered anchorage

D

47. Before the seas get rough, it is a good safety practice to _________.

Increase lighting Shutdown auxiliary equipment

secure loose gears

move quickly about the ship

C

48. What is the limit that each Administration shall establish for the purpose of preventing alcohol abuse for masters, officers and other seafarers while performing designated safety, security and marine environmental duties?

0.05% blood alcohol level (BAC)




A

49. What is the most important parameter to check right after any diesel engine is started?

exhaust temperature

lube oil pressure crankcase pressure

salt water pressure

B


50. Before using the steam soot blowers of boiler at sea, you should __________.

increase the firing rate

decrease the firing rate

raise the water level


C

51. If two compressors must be operated in parallel in order to maintain the box temperatures, a careful watch should be kept on the __________.

expansion valves of both evaporator coils

oil levels in both compressor crankcases

discharge pressure gauges of both compressors

suction pressure gauges of both compressors

B

52. Safety is dependent on orderliness and cleanliness that may be kept by __________.

storing all items in their proper place

storing all items in a common storage area

tagging all items according to their age and then storing them together

disposing of worn out items

A

53. The effect of too much heating in the fuel oil of main engine is ___________.

high corrosion attack

sublimation stuck plunger and barrel

high exhaust gas temperature

C

54. Too high exhaust gas temperature in all cylinders is cause by the following except________.

overload engine charged air pressure is too low

charged air temperature is too high

stuck-up fuel injection pump

D

55. The watch engineer has been unable to transfer the fuel oil to the settling tank while underway. As the tank level is becoming dangerously low, the engineer should now __________.

utilize a portable rubber impeller transfer pump

temporary stop the main enginepropulsion boiler

repeat all the steps he has taken

call out other engineers for assistance

D

56. An indication of excessive soot accumulation on boiler water tubes and economizer surfaces is due to____.

lower feed water flow

high feed water temperature

high stack temperature

low stack temperature

C


57. A good housekeeping on a vessel prevents fires by _________.

eliminating potential fuel sources

allowing better access in an emergency

eliminating trip hazards

improving personnel qualifications

A

58. Which condition could cause the feed pump of an auxiliary boiler to lose suction?

Decreased feed water temperature

Pump recirculating line being open to much

Excessive feed water temperature

Increased suction head pressure

C

59. The expansion tank for the jacket cooling water which is a closed cooling type is used to ___________.

maintain constant head in a system

allow easy release of air

prevent water leakage

reduce air contamination

A

60. You are standing watch in the engine room of a steam vessel. Adjustments to the boiler combustion control system, to bring about near perfect combustion, should be made by adjusting the __________.

fuel oil back pressure

air volume regulators

fuel/air ratio knob forced draft fan damper positions

C

61. Which steam plant operating condition requires priority attention over the other situations listed?

High level of lube oil in the refrigeration compressor

High water level in the deareating feedwater heater

Low level effluent in chlorination section of sewage tank

High water level in the fuel oil sludge tank

B

62. As a watchstander you should know that some auxiliaries are not designed to handle steam at boiler pressure. Which of the following devices is usually fitted in the branch line to deliver steam at the correct pressure?

An orifice A steam pressure reducing valve

A nozzle valve A constant quantity regulating valve

B


63. Despite troubleshooting the system, the watch engineer has been unable to transfer fuel to the settler while underway. As the settler level is becoming dangerously low, the engineer should now __________.

repeat all the steps he has taken

call out other engineers for assistance

utilize a portable rubber impeller transfer pump

secure each propulsion boiler

B

64. While on watch aboard a 900 psi steam vessel, you suddenly hear a loud, piercing, high-pitched noise. Which of the following actions should you take?

Vacate everyone from the engine room immediately, as this is the preliminary signal that the steam smothering system is about to be released.

Rapidly move towards the direction of the noise to investigate the probable source.

Cautiously move towards the source of the noise, sweeping the beam of your flash light ahead of you.

Move away from the noise to find a broom, then cautiously advance, sweeping the handle ahead of you to locate the source.

D

65. As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?

Exhaust temperatures

Raw water pressure

Lube oil pressure Air box pressure C

66. All ships with periodically unattended machinery plants shall, in addition to the general alarm required by Coast Guard Regulations (46 CFR), be provided with a/an __________.

engineer's assistance-needed alarm

accommodation space communication system

personnel alarm All of the options D


67. No lube oil appearing in the sight glass (bull's eye) of a gravity type system is a positive indication of __________.

no oil flowing to the bearings

no oil is overflowing the gravity tank

failure of all lube oil pumps

the gravity tanks being empty

B

68. In the execution of a standard UMS-check, the engineer on duty is experiencing a "low water level" ALARM in a cooling water expansion tank. What will be the appropriate action?

To refill the tank and the entire system is checked for leakages

The alarm should be blocked and the engine room is changed to manual mode

The set point for the level alarm in the tank is temporarily readjusted for later action


A

69. Which steam plant watch operating condition requires priority attention over the other conditions listed?


High lube oil storage tank level

Low sewage tank chlorination section level

Vapor issuing from deaerating heater vent

A

70. In which of the following lube oil lines should you expect to find an illuminated sight glass (bull's-eye)?

Lube oil pump suction

Lube oil pump discharge

Gravity tank discharge

Gravity tank overflow

D

71. Upon taking over the watch while vessel is operating at sea speed you find the D.C. heater level to be dropping slowly. Which components should be checked immediately?

Auxiliary condenser recirculation valve. Failure to properly set may prevent proper flow through the condensate line.

Makeup feed valve. Improper operation may prohibit the necessary addition of distilled water to the system.

D.C. heater spill valve. If this valve, or its bypass is opened, large amounts of water may be directed to the distilled water tank.

All of the options are correct and together provide the necessary means to control the water levels throughout the condensate and feedwater systems.

D


72. While standing watch in the engine room of a steam vessel while at normal sea speed, you notice that the condensate temperature outlet of the air ejector condenser is fluctuating by approximately 12F. You should therefore ________.

call the Chief Engineer immediately

only need to log the temperature and inform the watch engineer who will relieve you

only need to add make-up feed to the system

first determine whether the main condenser level is normal and steady

D

73. While a vessel is underway the low pressure turbine high-speed pinion is damaged. The pinion is then removed from the gear train. Under these circumstances, the main unit is capable of which speed and direction?

Reduced speed ahead only

Reduced speed astern only

Reduced speed ahead and full speed astern

Reduced speed astern and full speed ahead

A

74. If the main engine is running steady. The normal auto slow down temperature for scavenge air boxes "FIRE ALARM" is ___________.

120 degrees Celsius

130 degrees Celsius

50 degrees Celsius


A

75. If the engineer on watch has reason to doubt the accuracy of the water level showing in the boiler gage glass, he should FIRST __________.


blowdown the gage glass

replace the gage glass

start the standby feed pump

B

76. While inspecting the steering system at sea, you should check for __________.

air bubbles in the sight glass


overtravel in the rudder angle indicator

lost motion in the rams

B


77. While on watch at sea, you have noticed that the main lube oil pump suction vacuum has been increasing. To correct this you should __________.

slightly open drain lines on each of the duplex suction strainers to decrease vacuum differential

back flush each of the duplex strainer baskets through the recirculating line

stop the main engine prior to removing suction strainer covers, if changing over to the standby strainer did not correct the condition

rotate the knife edge cleaning device handle one complete turn

C

78. To assure that a bearing is receiving the proper oil supply, you should check the _______________.

bull's eye in the gravity tank overflow

lube oil temperature at the cooler outlet

sight flow glass in the bearing oil supply line

lube oil return flow valve

C

79. Prior to relieving the watch you should first check the fireroom status by verifying the boiler steam drum level and _________.

inspecting the fires and burners

preparing to blow tubes

stack temperature port and starboard settling tank levels

A

80. During main engine is running steady. The normal auto slow down temperature for "M..E. THRUST BEARING SEGMENT" is ________________.

75 degrees Celsius 95 degrees Celsius

60 degrees Celsius


A

81. What should be done when foreign matter is found in a lube oil strainer?

Immediately stop the main engine and inspect all strainers.

Examine the foreign matter and determine its source.

Periodically open the drain valve to the sludge tank.

All of the options B


82. A steam vessel is operating at sea and despite troubleshooting the system by all the vessel's engineers, the transfer of fuel to the settler has not been possible and the settler will be emptied in a few minutes. As the watch engineer, your "NEXT" step s

activate the "engineer needs assistance" alarm

line up the diesel cold start system

warm up the emergency generator

repeat all the steps that have been taken to determine the cause of the problem

B

83. If you hear a 'crackling' noise while standing watch in the engine room coming from a centrifical pump within a general service system, the most probable cause of the problem would be __________.

insufficient speed cavitation excess discharge pressure

excessive net positive suction head

B

84. At the start of your 4-hour watch, the reading of the revolution counter of the main engine is 996, 430. At the end of you watch the reading is 026, 430. What is the average rpm. If the time will be advanced 20 minutes, during the watch, What will be the

RPM=136.36 ; 30, 000 rev.

RPM= 135.2 ; 25,000 rev.

RPM= 138.23 ; 35,012 rev.

RPM= 140.231 ; 40,000 rev.

A

85. What steps should be taken if excessive steaming and vigorous bubbling occurs in the first section of the drain inspection tank?

Secure the fuel oil heater currently in use.

Locate and open any unnecessarily closed steam trap bypass valves.

Systematically locate and isolate any faulty traps in the contaminated steam system piping.

All of the options are correct and should be performed in the order as shown.

C


86. You are standing watch in the engine room of your vessel. Reduced capacity, accompanied by vibration and noise at the suction of a centrifugal pump, results from cavitation in the fluid being pumped. Cavitation describes the formation of __________.

vapor pockets water hammer action

fluid friction steam knock A

87. During maneuvering operations for a direct reversing large, low-speed, main propulsion diesel engine, which of the following actions is used to stop the shaft from turning prior to changing the engine rotation for a vessel with moderate headway?

Flywheel inertia Admission of reversing start air

The way of the vessel

Securing cylinder lubricators

B

88. You are standing watch in the engine room on your vessel. The usual symptoms of cavitation in a centrifugal pump are __________.

noise and vibration an increase in discharge pressure

an increase in suction pressure

lifting of the relief valve

A


89. The watch engineer finds the cargo refrigeration compressor has blown the shaft seal. In this situation, he should __________.

secure the compressor at once and close the suction and discharge valves

pump the system down and isolate the leak

close the suction valve, secure the compressor, and then replace the shaft seal

tighten the shaft seal packing to reduce leakage, slow the compressor, and operate the expansion valves by hand until repairs can be made

A

90. When relieving the watch in the fireroom, you should first check the fuel pressure to the boiler and _________.

port and starboard settling tank levels

economizer outlet temperature

empty all oil drip pans

boiler water level D

91. You would not see a flow through the bull's-eye of the lube oil gravity tank overflow line when the __________.

main engines are stationary at a stop bell

main engines are secured and the turning gear is engaged

the lube oil gravity tanks are being drained

main engines are turning at normal sea speed

C

92. While on watch, you notice that a significant amount of water is flowing out of the packing box from a centrifugal salt water pump which had been recently overhauled. You tighten the packing gland evenly by nearly a half inch, yet the amount of water out

make no further adjustments and continue to make a round of the engine room

take up evenly on the packing gland nuts another 2 or 3 full turns

back off on the nuts by the same amount to prevent scoring of the shaft sleeve and notify the next watch of the condition

shut off the sealing line valves to diminish the outflow of water from the packing box

C


93. Prior to relieving the watch you should first check the fireroom status by verifying the fuel oil pressure to the boilers and _____________.

boiler steam pressure

make up feed tank level

prepare to blow tubes

port and starboard settling tanks

A

94. When the flame scanner senses flame failure during boiler operation, which of the listed events will occur FIRST?

The fuel oil service pump is stopped.

The automatic purge cycle commences.

The fuel oil solenoid valve is de-energized.

The 'trial for ignition' period commences.

C

95. Which of the following repairs should be made to a badly warped boiler tube?

Heat the tube and use a soft mallet to straighten it.

Use a hydraulic jack to cold bend the tube.

Assure that the warped tube does not touch adjacent tubes and then reroll it in the header.

Replace the tube with a spare, if available, or plug it.

D

96. What steps should be taken if large quantities of fuel oil are found in the drain inspection tank?

Change over to the standby fuel oil heater.

Open steam trap bypass of the fuel oil heater that is on line.

Secure the lube oil purifier and its associated heater.

All of the options A

97. While standing watch in the engine room, which of the following actions should be taken to reestablish a 'blown' air ejector loop seal?

Decrease the steam pressure to the air ejector nozzels.

Shut off the steam to the second stage air ejector momentarily then open it again.

Momentarily close the valve in the loop seal line, then reopen slowly.

Increase the condensate flow through the air ejector.

C

98. While standing watch at sea and steaming full ahead, reducing the boiler forced draft pressure would also have a tendency to correct which descrepancy?

High superheat temperature.

White smoke from the stack.

High stack temperature.

All of the options D


99. When maneuvering, you discover heavy smoke coming from the turbocharger casing. You should ________________.

check the air filter for dirt

check for an exhaust leak

check the cooling water temperature

notify the bridge and ask to shut the engine down

D

100. The appropriate precaution should be taken when an engineer on duty enters a UMS-mode operated engine room due to an ALARM is to ________________.

Switch on the dead man arm upon entering the control room

Leave the UMS selector switch to UMS mode


A

101. The underway on watch in the fireroom, the bridge reports white smoke coming from the stack. This would indicates __________.

high fuel oil viscosiity

excessive excess air

low fuel oil temperature

insufficient steam atomization pressure

B

102. Which steam plant watch operating condition will require a priority attention over the other situations listed?

Low oil level in the steering gear sumps

High lube oil level in all storage tanks


Low bilge water levels throughout entire engineroom

A

103. Prior to relieving the watch at sea, you notice black smoke coming from the stack. What would this indicate?

Insufficient excess air

Dirty burner Soot blowers need to be operated


104. If one fuel oil strainer of a duplex unit becomes clogged while the vessel is steaming at sea, the FIRST action is to __________.

clean the dirty strainer as quickly as possible

change the oil flow over to the clean side


open the strainer bypass valve

B

105. When relieving the watch in the fireroom, you should first check the boiler water level and then ____________.

check the fuel pressure to the burners

empty all oil drip pans


check port and starboard settling tank levels

A


106. When standing watch at sea, steaming full ahead, adding make-up feedwater would also have a tendency to change which of the following parameters?

Decrease DC heater pressure.

Increase DC heater level.

Increase condensate depression.


107. When on watch in the engine room, a main turbine bearing high temperature alarm is indicated and remotely displayed as 62.78 degree centigrade you should _________.

assume, but verify that the circuit has malfunctioned

notify the bridge that you will be slowing down the main turbine

change over to the standby main lube oil supply pump

increase the speed of the operating main lube oil supply pump

A

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

increase the fuel pump discharge pressure

reduce the firing rate of the boilers

shift to a clean fuel oil strainer

secure the fuel oil service pump

C

109. If the engineer on watch has reason to doubt the accuracy of the water level shown in the boiler gage glass, he should __________.

speed up the main feed pump


blowdown the gage glass

start the standby feed pump

C

110. When relieving the watch in the fireroom, you should first check the boiler steam pressure and ___________.

boiler water level prepare to blow tubes

stack temperature port and starboard settling tanks

A


111. Should one boiler on a two boiler vessel suffer serious tube damage, the Officer-in-Charge, Marine Inspection may issue a permit (Form CG-948) to proceed to another port for repair __________.

only if the vessel's Certificate of Inspection is valid and has not expired

as long as no cargo or passengers are being carried

only upon written application of the master, owner, or agent of the vessel

All of the options C

112. Which steam plant watch operating condition will require priority attention over the other situations listed?

Low level of lube oil in cleansing tank

High level of lube oil in storage tank


High water level in main propulsion boiler

D

113. Which of the following conditions is the engineer's FIRST warning that the main lube oil pump has stopped?

Gravity tank low level alarm will sound.

Lack of oil in the overflow bull's-eye is observed.

High main engine bearing temperatures will be noted.

Low main sump level alarm will sound.

B

114. During an inport watch onboard a tank vessel while cargo operations are in progress, with the jacking gear engaged and running, you notice a 200 gallon drop in the reduction gear lube oil sump level. Which components or conditions should be checked imme

Inspect proper line-up of lube oil service pumps.

Confirm with deck officer that there was a change in vessel trim.

Verify the correct line-up of the lube oil transfer tank gravity overflow line.

All of the options are correct.

B


115. While on watch at sea with only one ship's service turbogenerator on line, the entire plant suddenly blacks out without warning. After restoring power, which of the following faults would most likely have attributed to this casualty?

The turbogenerator throttle valve position "micro switch" vibrated open, allowing the main breaker to trip open according to its protection circuitry.

Someone pushed the trip button to the 'shore power' breaker.

The main air compresser suddenly stopped.

The standby generator started automatically and became motorized.

A

116. When relieving the watch in the fireroom, you should first check the ___________.

boiler water drum level

boiler steam drum temperature

fuel pressure to the burners

port and starboard settling tank levels

C

117. When securing a fuel oil heater you should __________.

open the fuel oil temperature regulator bypass, widely

cut out the steam before securing the oil flow

stop the oil flow and then cut out the steam

remove all fuel oil pressure from the system by securing the service pump

B

118. Diesel engine mufflers accomplish noise reduction by __________.

reducing exhaust gas velocity

increasing the frequency of gas vibration

the use of long head pipes

the use of zinc electrodes

A

119. As an operating engineer, which action should you normally take during each watch when he auxiliary boiler is operating?

clean all duplex oil strainers

observe general boiler performance

lift the safety valves by hand

inspect and clean burner oil solenoid valve

B

120. When standing watch at sea, steaming full ahead, reducing the boiler forced draft pressure would also have a tendency to correct which descrepancy?

Low superheat temperature.

High stack temperature.

High atomizing steam pressure.

High DC heater level.

B


121. If two compressors must be operated in parallel in order to maintain the box temperatures, a careful watch should be kept on the __________.

discharge pressure gauges of both compressors

suction pressure gauges of both compressors

expansion valves of both evaporator coils

oil levels in both compressor crankcases

D

122. While standing watch in the engine room, irregular feeding or surging of the feedwater supply to a flash evaporator may be attributed to __________.

erratic water flow through the air eductor

a clogged vent line from the air eductor condenser

excessive pressure in the seawater feed heater

a dirty strainer in the saltwater feed pump suction line

D

123. Upon acknowledging an alarm bell in the stop position during maneuvering, you've noticed a lot of steam coming-out in the gland exhaust condenser vent and a low level alarm occured in the main condenser hotwell. For this condition you should __________

decrease gland sealing steam pressure

speed up the condensate pump

manually recirculate condensate and add some makeup feed

increase steam pressure to the air ejectors

C

124. While standing watch underway, if the brine level of a low pressure distilling plant is above the sight glass, which action should be taken?

Do nothing as this is the normal operating level.

Reduce the feed rate and check the brine eductor system.

The brine overflow weir should be raised to allow greater outflow.

The brine section should be drained down a minimum of 6 inches below the seawater heater bundle.

B

125. While making your rounds, you notice the main lube oil temperature to be higher than normal. To remedy this situation, you should __________.

speed up the main lube oil pump

open the lube oil cooler seawater inlet valve wider

throttle in on the lube oil cooler seawater discharge valve

increase the opening of the lube oil cooler seawater discharge valve

D


126. While underway at sea, one of three available centrifugal salt water service pumps is in operation with a sea water temperature of 10 deg C. The operating temperature of all the systems supplied by this pump appear to be high. Your next proper course of

start a second pump and operate it in parallel

start a second pump and verify a higher discharge pressure after securing the first pump

start the second pump, open the casing vent valve of the first pump, then secure the first pump

start the second pump, secure the first pump and do nothing else with the salt water service system

B

127. When the steering gear is in operation, you should __________.

check hydraulic oil levels every hour

check the rams for overheating

check for excessive oil leakage from rams

drain water from telemotor cylinders each watch

C

128. While underway at sea, a mechanical malfunction in one of the ship's service generators operating in parallel, requires that you must secure that generator. In order to prevent a possible overload to the remaining generator, which of the following sequen

Trip the malfunctioning generator's circuit breaker and prime mover throttle trip.

Trip all nonvital distribution feeder circuit breakers, decrease the load on that generator by using the governor, trip the malfunctioning generator's circuit breaker, and trip the prime mover throttle.

Trip the malfunctioning generator's circuit breaker and distribution feeder circuit breakers.

Trip all nonvital distribution feeder circuit breakers, the malfunctioning prime mover turbine throttle trip, and the generator circuit breaker.

B


129. While standing watch underway at sea, you notice that the brine level in the second effect of a double effect soloshell evaporator is nearly out the top of the sight glass. Which action should be taken initially?

The feed rate should be increased to the first effect.

The feed rate should be reduced and the brine discharge valve opened slightly.

The brine overflow weir should be raised to allow greater outflow.

The brine section should be drained down a minimum of 6 inches below the seawater heater bundle.

B

130. While standing watch underway in the engineroom, failure of the normal power supply will cause the emergency generator to provide power through __________.

the main bus tie feeder

its output breaker and automatic bus transfer device

line connection feeder

power failure alarm bus

B

131. Prior to relieving the watch you should first check the fireroom status by verifying the boiler water level and __________.

steam atomization pressure to the mechanical atomizers

fuel pressure to the burners

fuel oil viscosity water drum level B

132. While underway on watch in the engine room of a steam vessel, the proper valve positions for controlling feedwater to the boiler using the auxiliary feed system should be __________.

the auxiliary check valve fully open and the stop valve used to regulate the amount of flow

the stop valve fully open and the auxiliary check valve used to regulate the amount of flow

the stop and check valves fully open and the feed pump speed used to regulate the amount of flow

the check valve fully open and the stop valve regulated by the feedwater regulator

B


133. Upon taking over the watch, while the vessel is at sea speed, you find the following conditions to exist. Which condition should be attended to first and why should this step be taken?

Excessive recirculation of condensate. Failure to properly adjust may cause an increase in condenser level leading to a decrease in condenser vacuum.

Salted up evaporator dumping to bilge. Must immediately be restarted to prevent insufficient quantities of distilled and potable water.

High level in fuel oil sludge tank. Necessary to pump contents to settler to prevent overflow of tank into the bilges.

Leaking air line to auxiliary exhaust live steam makeup valve actuator. Repair or place in bypass control to insure proper pressures in the auxiliary exhaust steam system.

A

134. While standing watch at sea, a main engine bearing high temperature alarm has just been indicated on the control panel. Your next action should be to _________.

immediately notify the bridge

decrease the main engine speed to idle

increase the speed of the lube oil supply pump

verify the main engine lube oil coolers are functioning properly

B

135. While standing watch in the engine room you hear a 'crackling' sound coming from within a general service system centrifugal pump. The most probable cause for this occurrence would be due to an abnormal condition at the __________.

shaft sleeves discharge volutes wearing rings pump suction D

136. You are standing watch in the engine room of a steam vessel. You should blow down a gauge glass periodically in order to __________.

remove any sediment that has accumulated

maintain the proper water level in the steam drum

provide water samples for the second assistant

test the feedwater stop-check valve

A


137. On watch aboard ship, which of the following conditions will prevent a general service shipboard pump from achieving its maximum suction lift?

Leaks developed in the suction piping.

Restriction in the suction line.

Gases or vapors released in the liquid as a result of greater than normal pressure drops.


138. Which of the conditions will occur FIRST if the steam flow to the main engine, when at full power, is suddenly stopped?

Drum safety valve will open.

Dual element automatic feedwater regulator will compensate for boiler water swell.

Superheater safety valve will open.

Combustion control system will automatically secure all of the burners.

C

139. Before using the steam soot blowers to blow tubes at sea, you should __________.

raise the water level


increase the firing rate

decrease the firing rate

A

140. While on watch in the engine room and steaming at a steady rate, the water level begins to decrease and suddenly drops out of sight in the boiler gauge glass. Your FIRST corrective action should be to __________.

secure the fires slow down the engines

blowdown the boiler gage glass

open the feedwater regulator bypass

A

141. An auxiliary diesel generator continues to run after you try to shut down. Your next course of action should be to _________.

block the flow of air supply to the engine

engage the jacking gear

secure the lube oil pump

decrease control air pressure

A


142. You are standing watch in the engine room of a steam vessel. If the entire pneumatic control to a multi-element feedwater regulator fails, the feedwater valve can be controlled by a __________.

constant pump pressure regulator

remote manual control regulator

single-element feedwater regulator

local manual hand control

D

143. Which of the following actions should be taken FIRST when water is found in the fuel oil settling tank?

Shift pump suction to an alternate settling tank.

Shift to alternate or standby fuel oil service pump.

Sound the settling tank with water indicating paste.

Determine the extent of water contamination by reading the pneumercators.

A

144. If a tube failure results from low water level and you cannot maintain water in sight in the gage glass, you should __________.

immediately secure the forced draft fans

increase the feed pump speed to maximum

immediately secure the fuel oil supply to the burners

blowdown the gage glass to verify a low water condition

C

145. The underway on watch in the fireroom, the bridge reports black smoke coming from the stack. This would indicates __________.

fuel oil temperature too low

excessive steam atomization pressure

excessive air-fuel turbulence


146. If you hear a 'crackling' sound while standing watch in the engine room coming from a centrifical pump casing within a general service system, the most probable cause of the noise would be __________.

insufficient packing an oversized lantern ring

excessive suction lift

reversed pump rotation

C


147. The flash point of a residual fuel oil should be used to determine the highest temperature to which the oil may be heated __________.

for atomizing for centrifuging in a storage tank in the recirculating line

C

148. While making a round of the engine room, the oil in all of the main engine bearing sight glasses appears to be milky. The probable cause is the __________.

cold running of the bearing

collapse of the oil wedge

air leakage into the bearing

water contamination of the lube oil

D

149. In relieving time, the outgoing in charge of the engineering watch should ________________.

Check that the reliever is capable to carry out watch keeping duties

Stop the main engine before relieving time

Leave the engine room immediately


A

150. While a vessel is underway, one of the FIRST indications of the failure of the gland leakoff exhaust fan motor is __________.

loss of vacuum at the turbine

increased turbine exhaust temperature

water knock in the turbine gland steam header

excessive steam leakage at the turbine glands

D

151. While standing your engine room watch at sea, you notice the D.C. heater level dropping rapidly as indicated by the remote level indicator. Which of the following actions should be taken?

Immediately stop the main engine.

Do nothing in particular as this is a common occurrence aboard this vessel.

It is only necessary to immediately open the automatic make-up feed bypass valve.

Open the make-up feed valve bypass and check the condenser level immediately.

D


152. Upon assuming in port watch of a tank vessel while cargo operations are in progress, with the main engine and reduction gear secured you notice a substantial rise in the reduction gear lube oil sump level. Which components or conditions should be checked

Inspect proper line-up of lube oil service pump bypass system.

Confirm with the deck officer that there has been a change in the vessel's trim.

Verify that there is no rotation of the propulsion equipment and the gravity tank is empty.

All of the options are correct.

C

153. While standing your engine room watch at sea, you notice the D.C. heater level is dropping below normal as indicated by the remote level indicator. The boiler drum level is observed to be normal, as is the main condensate pump discharge pressure. Therefo

increase the boiler firing rates

decrease the boiler firing rates

reduce the feedwater level set point

open the make-up feed bypass valve

D

154. What precaution should be taken when an engineer on duty is inspecting a UMS-mode operated engine room at NIGHT?

Do not silence the alarm so the other engineer can hear

Switch on the dead man upon entering the control room


B

155. In order to maintain the effectiveness of the lube oil centrifuge to remove water, the engineer in charge should __________.

have the centrifuge cleaned only once every 30 days

take lube oil samples each week and place in clear containers for inspection

maintain the lube oil input temperature at a maximum of 110F

insure that the oil input is always twice the output capacity

B

156. Which of the conditions listed would cause the stern tube lube oil head tank level to decrease?

An increase in sea water temperature.

The entry of sea water into the system.

An increase in the stern bearing operating temperature.

A worn or damaged stern tube seal.

D


157. Prior to relieving the watch you should first check the fireroom status by verifying the boiler water level and ___________.


economizer inlet temperature

boiler steam pressure

port and starboard settling tanks

C

158. While standing watch in the engine room, if you suspect air leaking into a flash type distilling plant. The most probable cause(s) of the air leak could occur through __________.

gasketed joints valve stems gage glass packing

all of the options D

159. After the main engine has reached full sea speed, which of the following conditions could cause the water level in the boiler steam drum to keep falling?

Open cutout valves on the boiler gage glasses.

Condensate recirculating line is excessively open.

Feed pump discharge pressure is set too low.

Feed pump recirculating valve is closed.

C

160. While making engine room rounds at sea, you observe excessive steam leaking from the forward gland on the high pressure turbine. This may indicate that the __________.

turbine is operating at low speed

gland seal leakoff line is obstructed

main condenser vacuum is too high

drains were left open

B

161. Why must an operator pay particular attention to an auto/manual valve controller when it is placed in manual mode?

Manual valve control is not as stable as automatic valve control.

Valve position will no longer change in response to changes in system parameters.

The position of the valve can only be determined locally during manual control.

The valve can only be operated locally during manual control.

B


162. During seven-day period, the minimum standard rest of an officer in charge of the engineering watch must be ________________.

50 hours 60 hours 70 hours None of the stated options

C

163. Prior to engaging the turning gear, precautions should be taken to________________.



close the inlet and outlet valves for cooling water


A

164. While underway on watch, you notice that you need to constantly increase the coil pressure in the high pressure contaminated evaporator to maintain capacity. Which of the following may be the cause?

The brine density is improper.

The heating transfer surfaces are being layered with scale.

Impure distillate is being produced.

Shell vapor pressure is constantly decreasing.

B

165. Engineering Control Centers for minimally attended machinery plants shall, in addition to the general alarm required by Coast Guard Regulations (46 CFR), be provided with a/an __________.

satellite telecommunications alarm

remote vital system alarm

gyrocompass system alarm

All of the options B

166. While inspecting the steering gear at sea, you should check for __________.


accuracy of the rudder angle indicator

movement of the trick wheel

position of the six-way valve

A


167. While standing your engine room watch at sea, you notice the D.C. heater level is gradually dropping as indicated by the remote level indicator. Which of the following actions should you take?

Do nothing as this is a common marine plant occurrence.

Immediately open the automatic make-up feed bypass valve.

Check the condensate level in both the main and auxiliary condenser hotwells.

Immediately stop the main engine.

C

168. Which of the following actions should normally be taken during each watch when the auxiliary boiler is in operation?

Clean the flame scanner photocell window.

Inspect and clean all solenoid valves.

Lift the safety valves by hand.

Inspect for oil or water leaks.

D

169. Immediately after any diesel engine is started, the engineer should check the_________.

crankcase pressure lube oil pressure salt water pressure

exhaust temperature

B

170. The duties of a chief engineer upon taking charge of the department include __________.

preparing a list of engine department personnel for the Master's signature

taking a complete personal inventory of all engine room spare parts

determining if any vital engine room equipment is inoperative

obtaining a valid Certification of Inspection from the Coast Guard

C

171. Information from a data-logger can be helpful in determining the long term probability of machinery failure if you __________.

evaluate only the latest logged data as this is the best indication of plant status

evaluate a series of readings to obtain operating trends

monitor off limit conditions only when announced by an audible and visual signal

secure the machine under relatively steady state conditions

B

172. While standing watch, what immediate action should you take if you are running at sea speed and notice a sudden and significant drop in lube oil pressure to the main turbine?

Immediately increase cooling water flow to lube oil cooler.

Slow the turbine to minimum speed and watch the bearing temperatures.

Stop the main shaft using astern steam.

Shift strainers and gravity tanks.

C


173. While standing watch underway at sea in the engine room, there is a complete loss of electrical power. When power is restored, the steering gear pump motor will _________.

have to be restarted from the steering gear room

have to be reset before restarting

restart automatically because it utilizes an LVR controller

trip via the overload relay

C

174. For a gravity type lube oil system, a remote pressure sensing device is installed at the point of highest static head pressure on the main unit to enable the watch engineer to __________. I. be certain that the bearings are being adequately lubricated I

I only II only Both I and II Neither I nor II B

175. While standing watch in the engine room, you notice a high reading at a salinity cell located in the loop seal between two stages of a flash type evaporator. This would indicate __________.

chill shocking is necessary to remove scale

leakage at the second-stage condenser

faulty operation of the brine overboard pump

carryover in the first-stage

D

176. While standing watch underway at sea, you notice carryover in a flash type distilling plant. This can be a result of __________.

faulty operation of the brine overboard pump

a pressure drop through the loop seal

low first stage vacuum

low distillate conductivity

A

177. After starting the main lube oil pump in a gravity-type lube oil system, you should verify that the gravity tanks are full by __________.

looking at the overflow sight glass

sounding the gravity tanks

sounding the lube oil sump

observing the flow from the bearings

A


178. Which steam plant watch operating condition will require priority attention over the other conditions listed?


High level lube oil storage tank

Low water level main boiler

Deareating tank pressure 2 psig above normal

C

179. While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?

Manually trip the overspeed device.

Set the fuel rack to zero.

Disengage the safety interlock.

Slide the camshaft to the neutral position.

B

180. Any abnormal condition or emergency that occurs in the engine room must be reported immediately to the __________.

first assistant engineer

fireman on watch Chief engineer engineer on watch D

181. When standing watch at sea, steaming full ahead, adding large amounts of make-up feedwater would also have a tendency to change which of the following parameters?

Lower DC heater temperature.

Decrease DC heater level.

Increase air ejector condenser main condensate outlet temperature.


182. If a salinity alarm system indicates 2.5 grains per gallon at the main condensate pump discharge, your first action should be to __________.

blowdown the boilers and add make up water

chemically test the condensate for chloride content

increase the hydrazine dosage in the condensate line

open the main condensate recirculating valve

B

engine opt c1 feb 2015

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