單項(xiàng)選擇題

If a heavy sea strikes the rudder, the shock is transmitted through the tiller to （）.

A.the tiller arms
B.the swivel blocks
C.hunting gears
D.the rams

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單項(xiàng)選擇題

Anchor capstans are used in some installation where the cable lifter rotates about a （）.

A.horizontal axis
B.crankshaft
C.vertical axis
D.camshaft

單項(xiàng)選擇題

Prior to running the hydraulic pump, examine the system carefully and ensure that the lever of control valves is in （） position.

A.neutral
B.end
C.opening
D.closure