單項(xiàng)選擇題

The bilge system has been performing well; however, the aft starboard engine room bilgewell suddenly fails to be pumped outWhich of the following should be done first to determine the cause?（）

A.Open the bilge pump for inspection
B.Remove each of the manifold valves
C.Remove only the manifold valve to the affected bilge-well
D.Attempt to pump out another bilge well to determine if the entire system is affected

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單項(xiàng)選擇題

If a liquid sight flow indicator in a refrigeration system shows gas bubbles in motion passing inside of the glass, there is （）.

A.too much refrigerant in the system
B.oil entrained in the refrigerant
C.less than a full charge of refrigerant in the system
D.ice crystals forming in the refrigerant

單項(xiàng)選擇題

Dual electro-hydraulic steering units usually operate （）.

A.with both pumps on line at the same time
B.with one pump on standby
C.with the follow-up gear disconnected
D.only when the rudder is moved amidships

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The bilge system has been performing well; however, the aft starboard engine room bilgewell suddenly fails to be pumped outWhich of the following should be done first to determine the cause?（）

你可能感興趣的試題

If a liquid sight flow indicator in a refrigeration system shows gas bubbles in motion passing inside of the glass, there is （）.

Dual electro-hydraulic steering units usually operate （）.

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