A.get the bow up
B.discharge from the wings first
C.discharge from the centerline tanks first
D.discharge from amidships first
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A.Cranes are able to pick up and drop loads over a greater spotting area
B.Increased safety because the deck is clear of running and standing rigging
C.Simplicity of operation of the crane by its operator
D.All of the above
A.It allows for rotation of the hook in the single mode
B.It is required to“twin-up”30-ton pedestal cranes
C.It is used to pick up light loads
D.It is used to rigidly connect two cranes
A.Stopping the boom
B.Topping or lowering the boom
C.Moving the boom left or right
D.All of the above
A.It prevents the load from swinging when the boom level is adjusted
B.Less power is needed when topping the boom with a load on the hook
C.It maintains the height of the load above the deck
D.All of the above
A.started
B.finished
C.completed
D.reported
最新試題
Which method should be used to warm up the pump turbines prior to discharge（）.
Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.
Running an electric winch at slow speed over a long period of time causes（）.
Regulations concerning the stowage，lashing，and securing of timber deck cargoes aboard general cargo vessels may be found in the（）.
How should you signal the crane operator to lower the boom and raise the load（）.
Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.
The item（）is not the advantage of the hydraulic winch．
They（）loading at 1400 hours．
Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.
How should you signal the crane operator to move slowly（）.