單項(xiàng)選擇題Limit switches().

A.control the descent rate of a lifeboat
B.control the ascent rate of a lifeboat
C.cut off power to the winch when the lifeboat nears the final stowed position
D.cut off power to the winch when the lifeboat reaches the davit bumpers


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1.單項(xiàng)選擇題Lifeboat hatchets should be().

A.kept in a locker
B.secured at each end of the boat with a lanyard
C.kept next to the boat coxswain
D.kept in the emergency locker on the ship and brought to the lifeboat when needed

3.單項(xiàng)選擇題In rough weather,when a ship is able to maneuver,it is best to launch a lifeboat().

A.on the lee side
B.on the windward side
C.with the wind dead ahead
D.with the wind from astern

4.單項(xiàng)選擇題In painting a lifeboat following its overhaul,which parts must be painted bright red?()

A.the top 2-1/2 inches of each side
B.the releasing gear lever
C.the fuel tanks
D.the thwarts