A.Cargo whip
B.Gooseneck fitting
C.Spider band
D.Topping lift
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A.Loading
B.Discharging
C.Crude oil washing
D.Steaming tanks
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
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
最新試題
What is/are the advantage（s）of cranes over conventional cargo booms（）.
Which statement comparing a shipboard crane to conventional gear is TRUE（）.
What does “evel-luffing” accomplish during crane operations（）.
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（）.
How should you signal the crane operator to lower the boom and raise the load（）.
Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.
What is meant by the term“l(fā)uffing the boom”of a crane（）．
When using slings，cargo handlers should take all the following precautions except（）.
Running an electric winch at slow speed over a long period of time causes（）.
When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.