單項選擇題

If a hydraulic pump on a winch accidentally stops while hoisting,the load will stay suspended because（）.

A.a check valve will close that prevents reverse circulation
B.a centrifugal counterweight counteracts the force of gravity
C.the electric pump motor cut out
D.the control lever will move to the stop position

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單項選擇題

If a spill occurs,where would you log it?（）.

A.Oil record book
B.Bell book
C.Smopth logbook
D.Official logbook

單項選擇題

If a vessel list to port,the center of buoyancy will（）.

A.move to port
B.move to starboard
C.move directly down
D.stay in the position

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If a hydraulic pump on a winch accidentally stops while hoisting,the load will stay suspended because（）.

你可能感興趣的試題

If a spill occurs,where would you log it?（）.

If a vessel list to port,the center of buoyancy will（）.

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