单项选择题
A.a motor-driven steering wheel B.a pneumatic steering wheel C.a hand-driven steering wheel D.an electric steering wheel
If a heavy sea strikes the rudder, the shock is transmi...
单项选择题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
Anchor capstans are used in some installation where the...
单项选择题Anchor capstans are used in some installation where the cable lifter rotates about a （）.
A.horizontal axis B.crankshaft C.vertical axis D.camshaft
Prior to running the hydraulic pump, examine the system...
单项选择题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
