A.Should not exceed
B.Must be up to
C.Should exceed
D.Should be about
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A.get the bow up
B.discharge from the wings first
C.discharge from the centerline tanks first
D.discharge from amidships first
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
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Most pedestal crane power is provided by（）.
Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.
What is the purpose of the equalizing beam aboard a crane vessel（）.
When instructing a crew member concerning the right way to lift a weight，you would instruct him to（）.
Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.
What is meant by the term“l(fā)uffing the boom”of a crane（）．
Damage by（）shall not be considered as handling damage.
When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.
Which part of a conventional cargo gear rig provides for vertical control and positioning of a boom（）.
The net productivity per gang-hour can be improved through a decrease of（）.