单项选择题
Worm geared automatic mooring winches are （） as the multi-start feature reduces the advantage of worm gear iethe high gear radio.
A.popular
B.common
C.in lead position
D.uncommon
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相关考题
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单项选择题
The majority of automatic mooring winches are spur geared to improve the backward efficiency of the gear train for rendering（）
A.spur geared
B.screw geared
C.worm geared
D.belt driven -
单项选择题
In automatic （） the winch may be overhauled and wire is paid off the barrel at a pre-determined maximum tension.
A.cranes
B.windlass
C.capstans
D.mooring winches -
单项选择题
The （） is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.
A.cranes
B.winch barrel
C.capstans
D.windlass
