单项选择题
A.control equipment B.power unit C.transmission mechanisms D.fittings and pipeline
The cable lifter, mooring drum and warp end of a split ...
单项选择题The cable lifter, mooring drum and warp end of a split windlass may be separately engaged or disengaged means of a （）
A.dog clutch B.Pair of gears C.worm gear D.turning gear
The rotating unit of a spilt windlass consists of a（） w...
单项选择题The rotating unit of a spilt windlass consists of a（） with shaped snugs to grip the anchor cablea mooring drum for paying out or letting go of mooring wires and warp end for warping duties.
A.cranes B.mooring barrel C.capstans D.cable lifter
Worm geared automatic mooring winches are （） as the mul...
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
