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
What is/are the advantage（s）of cranes over conventional cargo booms（）.
Pedestal cranes have limit switches to restrict movement of which function（s）（）.
Damage by（）shall not be considered as handling damage.
Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.
If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor（）.
When viewed from above，the best position for the guy in relation to the boom is（）.
Which of the following statements is FALSE concerning cranes being installed on the centerline of vessels（）.
Which of the following statement（s）is/are FALSE regarding a twin pedestal crane set （）.
The item（）is not the advantage of the hydraulic winch．
Official draft measurements should be（）by authorized persons，agreed by both parties involved.