單項(xiàng)選擇題In a two-stroke/cycle diesel engine, the exhaust gases are expelled from the cylinder by the()

A.exhaust manifold
B.valve bridge
C.pressure of the fresh air charge
D.valve adjusting gear


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1.單項(xiàng)選擇題If a diesel engine driving a generator turns over freely but fails to fire properly, the cause could be ()

A.excessive compression pressure
B.air in the fuel lines
C.high fuel pressure
D.excessive load

2.單項(xiàng)選擇題One of the purposes for water cooling the exhaust manifold in marine diesel engine is to ()

A.reduce lube oil temperature
B.raise exhaust temperature reduce
C.excessive heating of engine room
D.reduce load on cooling water pump

4.單項(xiàng)選擇題An auxiliary diesel engine may fail to start due to()

A.low exhaust back pressure
B.high lube oil temperature
C.insufficient cranking speed
D.excessive fuel atomization

5.單項(xiàng)選擇題Diesel engine exhaust noise can be reduced in an exhaust muffler by ()

A.changing the direction of exhaust gas flow
B.increasing the exhaust gas velocity
C.changing the exhaust gas weight
D.increasing the exhaust gas static pressure

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The ISPS Code consists of a mandatory section-Part A, which shows()

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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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Engine parameters shall be corresponded to NOx Technical Files. This is required by ()

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Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?()

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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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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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One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is()

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

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

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