A.A centerline crane can never be operated in tandem
B.One crane is able to work one end of two adjacent hatches
C.These cranes are more economical and weigh less than outboard-mounted cranes
D.One crane is able to work both sides of the ship
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A.The cranes may be operated independently
B.The cranes may be interconnected for twin operation
C.When twinned，the crane rotation on the foundation assembly is unlimited
D.All of the above
A.The cranes may be operated independently
B.The cranes may be interconnected for twin operation
C.The cranes are powered by independent internal combustion power units
D.All of the above
A.Lock the turbine rotor and slowly bleed in steam until operating temperature is reached
B.Run the pump at high speed with the discharge valves closed
C.Run the turbine at slow speed with the pump disconnected
D.Shut the discharge valve and run the pump at slow speed
A.The loading dock
B.The midpoint of the barge
C.Within 25 feet of the pump engine
D.Above the forward rake end
A.At a 45° angle
B.At right angles
C.4 feet aft of the heel of the boom
D.Parallel to the boom
最新試題
When viewed from above，the best position for the guy in relation to the boom is（）.
How should you signal the crane operator to move slowly（）.
Pedestal cranes have limit switches to restrict movement of which function（s）（）.
Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.
Official draft measurements should be（）by authorized persons，agreed by both parties involved.
Most pedestal crane power is provided by（）.
What is/are the advantage（s）of cranes over conventional cargo booms（）.
The Master or person in charge of a ship shall ensure the crane record book shows the（）.
What is the purpose of the equalizing beam aboard a crane vessel（）.
Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.