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單項選擇題

The control rod of a steering gear pump is attached at its outer end to （）.

A.the hunting gear
B.the rudder stock
C.the rudder controller
D.the feedback unit

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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

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