The item（）is not the advantage of the hydraulic winch．

When discharging an oil cargo，the first consideration is to（）.

Sudden starts or stops of the boom is likely to cause all of the following except（）.

Running an electric winch at slow speed over a long period of time causes（）.

Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited（）.

Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.

The net productivity per gang-hour can be improved through a decrease of（）.

What is meant by the term“l(fā)uffing the boom”of a crane（）．

Pedestal cranes have limit switches to restrict movement of which function（s）（）.

When using slings，cargo handlers should take all the following precautions except（）.