單項選擇題

A warp end may be fitted for operating the derrick topping wire which adjusts the derrick （）.

A.length
B.slack
C.height
D.rotation direction

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單項選擇題

These include deck machinery such as mooring equipment, anchor handling equipment, cranes and （）.

A.boilers
B.bow thrusters
C.stabilizers
D.hatch covers

單項選擇題

The hand steering is a method by which the motion of the rudder is controlled with （）.

A.a motor-driven steering wheel
B.a pneumatic steering wheel
C.a hand-driven steering wheel
D.an electric steering wheel