单项选择题
A.coil it counterclockwise B.not coil it C.take a turn under D.twist out the kinks under a strain
If an attempt is made to hoist a load that exceeds the ...
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
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