單項選擇題

If a heavy sea strikes the rudder, the shock is transmitted through （） to the rams, this cause a sudden increase in oil pressure in one of the cylinders.

A.the control rod
B.the hunting gear
C.the floating ring
D.the tiller arm

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單項選擇題

Additional heat extraction from the exhaust gases can be effected by adding an （） section to the unit in plants.

A.air cooler
B.economizer
C.injector
D.air blower

單項選擇題

Oil water separators are used to ensure that ships don’t discharge oil when （） bilge water.

A.to pump off
B.being pumped
C.pumping out
D.it pumping out

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