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[主观题]

Most minor spills of oil products are caused by().

A.equipment failure

B.human error

C.majon casualties

D.unforeseeable circumstances

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第1题

Enhanced procedures concerningthe exercise of( )have been developed to allow intervention in the case of deficiencies deemed to pose a danger to persons,property or the environment.

A.port state control

B.flag state control

C.fire and boat drill

D.safety inspection

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第2题

If the emergency fire pump is not able to perform. at or between any draft(s)this should be()

A.kept as a secret

B.avoided any operation

C.adjusted ballasting

D.noted on board and take naction to arrange alternatives

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第3题

Resources are allocated and assigned as needed in( )to perform. necessary tasks.

A.suitable sequence

B.correct sequence

C.correct priority

D.suitablepriority

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第4题

()must be familiar with these requirements of bilge water management, particularly those directly involved with such operations involving bilge water.

A.All responsible personnel

B.All the crew served in engine room

C.The master

D.The chief engineer

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第5题

In the following statements about the principle of the low level controlling, which is WRONG? 0

A.Low level is monitored on the drain tank and header tank.

B.If there is high differential the filters pressure across the circulating

pumps is alarmed

C.The lubricating oil purifier cannot take oil from the drain tank

D.If the sea water pressure falls, this also operates an alarm

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第6题

You are attempting to parallel two AC.generators, and the synchroscope pointer revolving in the fast direction.This indicates that the frequency of the incoming machine is

A.higher than the bus equency

B.lower than the bus equency

C.the same as the bus frequency but out of phase with it

D.same as the bus frequency and the circuit breaker may be closed at

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第7题

The biological sewage treatment plant utilizes Oto completely break down the sewage into an acceptable substance for discharge-into anywaters

A.agitation function

B.bacteria

C.chemica

D.oxidizing function

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第8题

Where could you monitor the correct instant for synchronizing without aid of synchroscope or synchronizing lamp?

A.Distribution board

B.Section board

C.Emergency switchboard

D.Main switchboard

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第9题

The disadvantage of the non-synchronous motor is that it requiresoand it produces a low starting-torque

A.much initial current

B.direct current

C.little initial current

D.constant current

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第10题

In an AC.synchronous motor electric propulsion plant,propeller speed is controlled by()

A.prime mover speed

B.number of energized main motor poles

C.propulsion generator field strength

D.electric coupling field strength

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