A、Davit arm to pivot on the traveling nut and the head to fall outboard
B、Traveling nut to lock up in place on the worm gear
C、Limit switch to engage and hold the traveling nut in position
D、Winch brake to lock in position and prevent lowering the boat
更多“While cranking out a quadrantal davit，slippage of the quadrant due to excessive wear or failure of the teeth in the quadrant will cause the（）.”相关的问题
A、differential of crank-webs B、indicator diagrams C、lube oil reading out D、misalignment of crank-throws
A、laying a straight edge across the crank webs at the crankpin and measuring the distance to the crankpin in two places B、measuring the crank drop on either side of each crank throw while the crankshaft is slowly rotated through one revolution C、rotating the crankshaft through one revolution, pausing each 90oof rotation to measure bearing clearances, top and bottom D、taking micrometer reading between the crank cheeks opposite the crankpin every 90°of crank angle rotation
A、foreach（x）System.out.println（z）； B、for（intz：x）System.out.println（z）； C、while（x.hasNext（））System.out.println（x.next（））； D、for（inti=0；i
A、with bow out，stern in B、with bow in，stern out C、parallel to the dock，as close in as possible D、parallel to the dock，as far out as possible
A、两个电门都按下才能启动发动机 B、Crank是Start的备份，当Start电门故障时，用Crank电门启动 C、Crank电门是冷转启动，不点火。Start电门是正常启动。 D、两个电门没区别，按哪个都行
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
A、A.Hoist the boat clear of the cradle B、B.Release the outboard part of the cradle C、C.Rig the tricing lines D、D.Crank the crescent out
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