单项选择题
The part of a windlass which physically engages the chain during hauling or paying out is the().
A.devil's claw
B.bull gear
C.wildcat
D.cat head
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相关考题
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The most serious effect of air trapped in a diesel engine jacket water cooling system is that it().
A.causes colloid suspension in the cooling water
B.reduces the capability of the lubrication system
C.can form pockets which block the flow of coolant through the system
D.leads to the scuffing of cylinder walls -
单项选择题
The engine in a covered lifeboat is fueled with().
A.kerosene
B.unleaded gasoline
C.diesel oil
D.liquefied gas -
单项选择题
Sudden unloading of a diesel engine can cause().
A.decreased fuel efficiency
B.increased exhaust temperature
C.black smoke
D.overspeed trip
