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
单项选择题 Herringbone is a term associated with（）.
单项选择题 Galvanizing would be suitable for protecting wire rope which is used for（）.
单项选择题 Extended cyclical variations in tensions will cause an anchor chain to break due to（）.
