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单选题
It （） for an emergency generator to require paralleling.
A
is usual
B
is not usual
C
is necessary
D
is not impossible
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单选题Which of the following is NOT true according to the passage?（）A
Both the main steering gear and the auxiliary steering gear should be operatedB
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单选题A diesel driven emergency generator is prevented from being paralleled with the ships service generators by （）A
an electrical interlock systemB
an automatic paralleling trip switchC
the synchronizing oscilloscopeD
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单选题An emergency diesel generator should automatically shut down in the event of （）A
dangerous over-speedingB
a loss of lube oil pressureC
activation of the fixed CO2 system for the emergency generator spaceD
all of the above
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单选题After resolving the trouble of main power supply, main switch of emergency generator should（）, if power supply is refreshed.A
be switched off by the duty officerB
be switched on by the duty officerC
be switched off automaticallyD
be switched on automatically
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单选题An emergency generator, driven by an internal combustion engine, shall be tested under load for a minimum of 2 hours at least once every （）A
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单选题Emergency generator is installed on board mainly to （）A
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supply power specially to charging panelC
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ensure the power supply to critical equipment after the main switchboard out of power
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The testing of the internal combustion engine driven emergency generator at least once each month the vessel is navigatedB
The testing of storage betteries for emergency lighting and systems once each 6 months the vessels is navigatedC
The actual draft when the vessel arrives in salt water after department a portD
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单选题Which of the listed sections of an emergency switchboard is used to supply power for alarm signals under emergency conditions?（）A
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the auxiliary enginesC
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单选题（）is not a part of the main switch board.A
Control panel of main generatorB
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单选题The emergency generator or emergency battery is connected to（） on most large ships.A
distribution boardsB
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lifesaving jacketsC
lifeboat engineD
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annuallyB
once every two yearsC
once every four yearsD
once every five years
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