單項選擇題On a ship’s crane,the load chart relates the allowable load to the combination of the boom length and().

A.winch speed
B.boom strength
C.load radius
D.cable strength


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1.單項選擇題Oil may NOT be transferred unless().

A.there are two certificated tankermen on each vessel
B.the vessel is equipped with constant-tension winches
C.discharge containment equipment (i.e. drip pans) are in place
D.All of the above