單項(xiàng)選擇題

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

A.the speed to be retarded by the friction brake
B.a load to go downward at full speed
C.the circuit breaker to turn off
D.the resistors to overheat and eventually burn out

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單項(xiàng)選擇題

Regulations concerning the stowage，lashing，and securing of timber deck cargoes aboard general cargo vessels may be found in the（）.

A.International Cargo Bureau Regulations
B.Load Line Regulations
C.Rules and Regulations for Cargo and Miscellaneous Vessels
D.Vessel's classification society rules and regulations

單項(xiàng)選擇題

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

A.Hoist upper & lower limits
B.Luff travel limits
C.Rider block hoist upper & lower limits
D.All of the above

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

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Regulations concerning the stowage，lashing，and securing of timber deck cargoes aboard general cargo vessels may be found in the（）.

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

Regulations concerning the stowage，lashing，and securing of timber deck cargoes aboard general cargo vessels may be found in the（）.