A.Guy
B.Shroud
C.Spider
D.Topping lift
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A.Cargo whip
B.Gooseneck fitting
C.Spider band
D.Topping lift
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
最新試題
When instructing a crew member concerning the right way to lift a weight，you would instruct him to（）.
Which method should be used to warm up the pump turbines prior to discharge（）.
Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.
Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.
The net productivity per gang-hour can be improved through a decrease of（）.
The Master or person in charge of a ship shall ensure the crane record book shows the（）.
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 move slowly（）.
When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.