A.Cranes are more difficult to secure for sea
B.The spotting area of the conventional gear is larger
C.A crane operator requires more training than the winch operator of a yard and stay rig
D.The yard and stay rig is more flexible in its ability to handle a wider variety of cargoes
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A.Guy
B.Shroud
C.Spider
D.Topping lift
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
最新試題
How should you signal the crane operator to move slowly（）.
Damage by（）shall not be considered as handling damage.
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.
When using slings，cargo handlers should take all the following precautions except（）.
Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.
Pedestal cranes have limit switches to restrict movement of which function（s）（）.
Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.
When viewed from above，the best position for the guy in relation to the boom is（）.
Which part of a conventional cargo gear rig provides for vertical control and positioning of a boom（）.