單項選擇題Manila slings should not be used to load（）.
A.cotton
B.lumber
C.steel
D.tires
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1.單項選擇題Manila lines in which the strands are right-hand laid（）.
A.should be coiled in a clockwise direction
B.should be coiled in a counterclockwise direction
C.may be coiled either clockwise or counterclockwise
D.should never be coiled
2.單項選擇題Limit switches on gravity davits should be tested by（）.
A.the engineers，from a panel in the engine room
B.shutting off the current to the winch
C.pushing the switch lever arm while the winch is running
D.All of the above
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After deploying the anchor，a permanent chain chaser is（）.
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