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.

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（）

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.