單項(xiàng)選擇題If it becomes necessary to cutout an individual cylinder of a large, low-speed, main propulsion diesel engine, the fuel to that cylinder should be secured and its ()

A.fuel pump should be removed and all connections blanked off
B.cylinder oil feed rate should be increased slightly above that used at normal sea speed
C.cylinder oil feed rate should be reduced
D.cylinder oil feed rate should be increased to the maximum flow capable of the metering pump


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1.單項(xiàng)選擇題The satisfactory operation of diesel engine exhaust valves usually depends on()

A.the proper back pressure
B.the cooling water temperature
C.correct timing and proper seating
D.accurate metering and the exhaust temperature

2.單項(xiàng)選擇題If an auxiliary diesel engine frequently stalls, the trouble may be caused by ()

A.low exhaust back pressure
B.air in the fuel system
C.gasket blow-by or leakage
D.incorrect assembly of idler springs

4.單項(xiàng)選擇題The exhaust gases in a supercharged two-stroke/cycle diesel engine are expelled from the cylinder by ()

A.pumping action of the piston
B.pressure of the fuel charge
C.vacuum developed in the manifold
D.pressure of the fresh air charge

5.單項(xiàng)選擇題Which of the listed items should be secured before performing any maintenance on a solenoid operated air start valve?()

A.Electric power and starting air
B.Lube oil standby pump and control air
C.Hydraulic switch and engage jacking gear
D.Motor drain and pneumatic control system power

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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

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Cold weather starting of a diesel engine may be made easier by()

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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()

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The treatment of the fuel oils involves storage, heating, filtering and()

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“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()

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Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the()

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The additional mark ()in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.

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The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()

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Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()

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()are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.

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