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單項選擇題During an engine room watch if immediate action is necessary to ensure safety of the ship its machinery and crew （）

A.the chief engineer must be informed at first
B.the captain must be informed at first
C.it must be taken by the duty engineer
D.the generator engine must be stopped

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1.單項選擇題In the engine department, the （） is looked upon to provide the leadership that is needed.

A.captain
B.chief engineer
C.chief officer
D.chief motorman

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2.單項選擇題（） is a precaution which contributes to avoiding trouble under normal operating conditions.

A.Constant inspection
B.Keeping constant load
C.Remaining constant temperature
D.Varying speed

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3.單項選擇題Self-excited a-cgenerator with "error operated" voltage control systems draw the full excitation power for the machine terminalsThis dispenses with the current transformers, reactors and capacitors necessary for accurate compounding, but renders the excitation system vulnerable to variations in its output voltageWhich of the following is correct about the generator mentioned according to the sentences above （）.

A.It consumes no excitation power
B.It has current transformers
C.Components are needed for accurate compounding
D.Its excitation system is vulnerable to voltage variations

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4.單項選擇題Generators should have an excitation/voltage regulation system which will enable them to share the steady state reactive load （） no machine exceeds its proportional share of reactive load by more than 10% of the rated reactive load of the largest generator.

A.when
B.so as
C.such that
D.though

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5.單項選擇題If a steering motor becomes overloaded, the （）

A.overload condition of 5 % will trip the motor off the line immediately
B.overload condition will be indicated visually in the machinery space
C.motor running indicator will begin to flash "on" and "off" in response to the sustained overload condition
D.standby steering pump will start automatically and come on the line

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