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單項(xiàng)選擇題

An independent bilge suction is required for （）.

A.ballast tanks
B.sludge tanks
C.machinery space bilges
D.cargo hold bilges

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單項(xiàng)選擇題

If the pump for a hydraulic anchor windlass is overheating, the cause may be （）.

A.excessive drive motor speed
B.excessive pump discharge pressure
C.too low of a tilting box angle
D.insufficient drive motor speed

單項(xiàng)選擇題

Refrigerant enters the condenser as a （）.

A.high pressure liquid
B.low pressure vapor
C.high pressure vapor
D.low pressure liquid

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