A.unchanged
B.increased
C.eliminated
D.decreased
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A.increases as the cargo closes the head while hoisting
B.increases if the cargo runner is doubled up
C.decreases as the boom is topped to a greater angle
D.is determined by the thrust stresses on the boom
A.provide safe electrical power connection to barge equipment
B.keep the vessel from surging excessively
C.prevent an accidental discharge of static electricity
D.secure the cargo hose to a hatch when loading overall
A.running rigging leading aft from the masts
B.running rigging leading forward from the masts
C.standing rigging leading aft from the masts
D.standing rigging from the cross trees to the mast head
A.including
B.besides
C.except
D.in addition to
A.hoisting cargo aboard a vessel
B.hoisting personnel aboard a vessel
C.securing a small boat to a large vessel
D.hoisting the anchor
最新試題
Most pedestal crane power is provided by（）.
Official draft measurements should be（）by authorized persons，agreed by both parties involved.
When viewed from above，the best position for the guy in relation to the boom is（）.
How should you signal the crane operator to lower the boom and raise the load（）.
The item（）is not the advantage of the hydraulic winch．
How should you signal the crane operator to hoist（）.
When instructing a crew member concerning the right way to lift a weight，you would instruct him to（）.
They（）loading at 1400 hours．
What is/are the advantage（s）of cranes over conventional cargo booms（）.
When using slings，cargo handlers should take all the following precautions except（）.