If you must pump bilges while a vessel is in port, you should pump only ____ . A. if discharge is led to a shore tank or barge B. during the hours of darkness C. on the outgoing tide D. as much as is necessary

单选题

IF YOU ( )THAT THE HYDRAULIC PUMP DOES NOT OPERATE CORRECTLY, EXAMINE THE PUMP.

答案解析

单选题

If you must pump bilges while a vessel is in port, you should pump only ____ .A. if discharge is led to a shore tank or bargeB. during the hours of darknessC. on the outgoing tideD. as much as is necessary

答案解析

单选题

If a bilge pump is able to develop vacuum, but is unable to sufficiently pump out the bilges, you would check for all of the following EXCEPT ____.

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单选题

If the capacity of a centrifugal pump decreases gradually over a bong period of time, you should replace the ______

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单选题

If you refuse to do it,you must be ready to take the（ ）.

答案解析