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單項(xiàng)選擇題

During the watch keeping at sea, at appropriate intervals inspection should be made of （）, auxiliary machinery and steering gear spaces by the duty engineer.

A.the main propulsion plant
B.lifesaving jackets
C.lifeboat engine
D.state of emergency generator

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單項(xiàng)選擇題

The ground terminal of a starter should be connected to （）

A.the common ground point
B.the starter’s frame
C.the commutator
D.the starter’s mounting bolts

單項(xiàng)選擇題

Wires should have each feature of the following except （）

A.flame retardant
B.moisture resistant
C.oil resistant
D.low conductivity