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单选题
Once a scavenge fire is detected the engine （）.
A
will be speeded up
B
should be slowed down
C
must slow down
D
have to be slow down
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If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to_______the engineA.stopB.startC.speed upD.slow down
考题
Fire protection regulations for towing vessels require all crew members to know how to perform each of these tasks EXCEPT ______．A.Start the mechanical ventilation system for the engine roomB.Operate the fuel shut-off for the engine roomC.Operate all fire extinguishing equipment aboard the vessel on board the vessel，including starting the fire pumpD.All of the above
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单选题In ships where the engine room is designed as UMS, temperature sensors are fitted at critical points within the scavenge spacesActivation would cause automatic （）of the engine.A
stopB
startC
speed upD
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单选题Before using a fixed CO2 system to fight an engine room fire，you must（）.A
secure the engine room ventilationB
secure the machinery in the engine roomC
evacuate all engine room personnelD
All of the above
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单选题If a scavenge fire starts, the engine must be put to “（）” and the fuel must be taken off the cylinders affected by the fire.A
stop engineB
finished with engineC
dead slow aheadD
dead slow astern
考题
单选题The indications of a scavenge fire are excessive black smoke, （） and peeling from scavenge trunking.A
turbo-chargers surgeB
spark seen from the drainsC
paint blisteringD
all above are right
考题
单选题（） of an engine crankshaft can be detected by measuring deflections of crank webs for each unit of the engine.A
MisalignmentB
LengthC
StrengthD
Stresses
考题
单选题Once a scavenge fire is detected the engine （）.A
will be speeded upB
should be slowed downC
must slow downD
have to be slow down
考题
单选题Fire protection regulations for towing vessels require all crew members to know how to perform each of these tasks EXCEPT（）.A
start the mechanical ventilation system for the engine roomB
operate the fuel shut-off for the engine roomC
operate all fire extinguishing equipment aboard the vessel on board the vessel，including starting the fire pumpD
All of the above
考题
单选题Hearing a strong noise, （） at once.A
the engine stoppedB
the engine was stoppedC
he stopped the engineD
he had stopped the engine
考题
单选题Poor combustion in a diesel engine can be caused by （）.A
high compression pressureB
low intake air temperatureC
low exhaust pressureD
high scavenge air temperature
考题
单选题Oil mist detectors are usually used on board to detect oil mist density within （）.A
the engine crankcaseB
the engine scavenge boxesC
drain tanksD
fuel tanks
考题
单选题The exhaust system for a turbocharged diesel engine functions to （）A
power the after-coolersB
power the turbochargerC
reduce the cylinder scavenge effectD
cool the turbocharger
考题
单选题An example of class "A" fire is a/an （）.A
electrical fire in the engine roomB
oil fire in the engine room bilgesC
oil fire involving a grade A petroleum productD
mattress fire in a stateroom
考题
单选题Your vessel is equipped with a fixed C02 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）.A
Use the C02 system and evacuate the engine roomB
Use the fire main system and evacuate the engine roomC
Evacuate the engine room and use the C02 systemD
Evacuate the engine room and use the fire main system
考题
单选题Whilst the engine is turning, check to see that no water is leaking into the crankcase, scavenge air belt, or from （）.A
exhaust valvesB
starting valvesC
fuel valvesD
the indicator cocks
考题
单选题The FIRST step to take in fighting an engine room fire resulting from a ruptured fuel oil service line, is to （）.A
evacuate all engine room personnelB
fight the fire with hand portable extinguishersC
activate the mainCO2 bankD
stop the flow of leaking fuel oil
考题
单选题Once a fire is detected the engine should be slowed downOn no account （）.A
the trunking should be opened upB
should the trunking be opened upC
the trunking should not be opened upD
should the trunking not be opened up
考题
单选题Indications of （）are loss in power and irregular running of the engine, high exhaust temperatures of corresponding unite, high local temperature in scavenge trunk, surging of turbocharger, and sparks and smoke emitted from scavenge drains.A
a crankcase explosionB
a scavenge fireC
abnormal compression ratio
考题
单选题If a crankcase explosion occurs in a diesel engine, you should stop the engine and（）A
immediately open all crankcase relief portsB
increase crankcase exhauster speed to draw cool air into the engineC
allow the engine to cool naturallyD
increase crank case scavenge air to remove unburned gases
考题
单选题If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to （）the engine.A
stopB
startC
speed upD
slow down
考题
单选题Once a scavenge fire is detected, fuel should be shut off from the affected cylinders and cylinder lubrication increased （） the risk of seizure.A
to protectB
to guardC
to maximizeD
to minimize
考题
单选题To avoid scavenge fires （） the engine timing and equipment maintenance should be correctly carried out.A
occurredB
occurringC
not happeningD
occur
考题
单选题When starting air is admitted, a diesel engine turns over very slowly without firingThe cause may be （）A
an obstruction in an cylinderB
water accumulation in some engine cylindersC
low starting air pressureD
low scavenge air pressure
考题
单选题The lubrication to the cylinders affected by the fire must be （）to prevent seizure and all scavenge drains must be （）to prevent the discharge of sparks and burning oil from the drains into the engine room.A
decreased；openedB
decreased；shutC
increased；openedD
increased；shut
考题
单选题When occurring a fire in the scavenge air box, the following measures should be taken except for（）A
reducing speed to SLOW and asking bridge for permission to stopB
stopping the fuel oil supplyC
switching-on the auxiliary blowersD
putting the scavenge air box fire extinguishing equipment into function
考题
单选题Engine room is（）fire.A
onB
inC
atD
out
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