单项选择题
A.boilers B.bow thrusters C.stabilizers D.hatch covers
The hand steering is a method by which the motion of th...
单项选择题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
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
