单项选择题

Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from （）.

A.within the space concerned
B.outside the space concerned
C.the throttle station
D.within the fire room

点击查看答案&解析

上一题目录下一题

相关考题

单项选择题

If an electric motor driven air compressor fails to start, it may be due to a （）.

A.leaking discharge valve
B.jammed suction valve
C.tripped overload relay
D.broken discharge un-loader

单项选择题

Which of the following precautions should always be carried out in dry dock?（）

A.Liquids should never be transferred between tanks without consulting the dock master
B.If sea valves have been disassembled, all bonnets must be checked for leakage when the ship is re-floated
C.Before re-floating, all sea chest strainers should be verified as having been replaced
D.All of the above

单项选择题

Which of the following statements about pump operations is NOT a correct statement?（）

A.In order for a fluid to be pumped, a fluid must be made to flow
B.A substance must be cold in order for it to be pumped
C.The kinetic energy imparted by the pump can be used to force a liquid through a hydraulic system
D.A pump must receive its energy from an external source