A、may jam against the stops
B、will not automatically position the boat at the embarkation station
C、screw may come out of the sheath
D、will chafe against the falls and may cause their failure
更多“Many sheath-screw davits have markings to indicate the maximum angle to which they should be cranked out. If the angle is exceeded，the davit（）.”相关的问题
A、inserted each time before the booms are cranked out B、periodically removed for inspection and lubricated C、replaced at each inspection for certification D、in the locked position after the boat is cradled and griped down
A、The boat should be hoisted a few inches clear of the cradle before cranking out the davits B、The inboard gripes should be cast off before the outboard gripes C、The outboard section of the cradle must be released D、The tricing pendants will automatically bring the boat alongside at the embarkation deck
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