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單項(xiàng)選擇題

The space between cylinder liner and jacket is called （）.

A.the circulating tank
B.the scavenge box
C.the cooling water space
D.the cooler

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單項(xiàng)選擇題

The shells are secured by means of bearing caps and studs, the necessary clearance being provided by means of （） of different thickness.

A.shims
B.packing
C.glands
D.washers

單項(xiàng)選擇題

The sequence of parts in a generally used fuel oil supply system for a main engine is （）
(1)tanks in the double bottom
(2)centrifuges
(3)service tank
(4)settling tank
(5)viscosity regulator

A.(1)-(2)-(4)-(3)-(5)
B.(1)-(4)-(2)-(3)-(5)
C.(1)-(3)-(2)-(4)-(5)
D.(1)-(5)-(4)-(2)-(3)