单项选择题

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（）.

A.when the line pull reaches the rated winch capacity
B.after the line pull exceeds the rated winch capacity
C.after a short build-up of torque
D.immediately

相关考题

Herringbone is a term associated with（）.A.anchoringB.mo...

单项选择题Herringbone is a term associated with（）.

A.anchoring
B.mooring
C.sewing
D.splicing

Galvanizing would be suitable for protecting wire rope ...

单项选择题Galvanizing would be suitable for protecting wire rope which is used for（）.

A.cargo runners
B.stays
C.topping lifts
D.All of the above

Extended cyclical variations in tensions will cause an ...

单项选择题Extended cyclical variations in tensions will cause an anchor chain to break due to（）.

A.fatigue
B.corrosion
C.distortion
D.abrasion

船舶索具名称

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（）.