A.proportional control
B.integral control
C.derivative control
D.on-off control
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A.fuel manifold
B.lubricating pipe line
C.auxiliary engine pipe line
D.generator output line
A.Routine supervisory labor particularly the unproductive night-service labor is reduced
B.Engine mal-operation is automatically sensed and manned
C.The engine room need be manned at night in bad weather or close waters
D.Some remedial measures can be taken automatically
A.internal heat it can withstand
B.load it can carry continuously
C.load it is capable of supplying
D.overload it can carry for a specified time only
A.full excitation
B.load
C.power factor
D.number of poles
A.blow out coils
B.governor relay
C.under voltage trips
D.reverse current trips
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（） is not installed on the main switchboar.
Under MARPOL Code the ship to which it applies has to carry （）
Cold weather starting of a diesel engine may be made easier by（）
The condensers located in various stages of a flash evaporator are cooled by（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
The shipboard oil pollution emergency plan will be invalid after （）
The main purpose of port State control is not to（）