单项选择题
A.three wire rope clamps B.an eye splice with four or five tucks C.a thimble fastened with four or five tucks D.a wire rope socket attached with zinc
The standing part of a tackle is（）.A.all the fall excep...
单项选择题The standing part of a tackle is（）.
A.all the fall except the hauling part B.the hook that engages the weight to be moved C.that part to which power is applied D.that part of the falls made fast to one of the blocks
The square knot is used for（）.A.forming temporary eyes ...
单项选择题The square knot is used for（）.
A.forming temporary eyes in lines B.joining two lines of equal size C.keeping line from unlaying or fraying D.joining two lines of different size
The size of wire rope is determined by the（）.A.number o...
单项选择题The size of wire rope is determined by the（）.
A.number of strands B.number of wires in each strand C.circumference D.diameter
