你可能感興趣的試題

單項選擇題

Manila slings should not be used to load（）.

A.cotton
B.lumber
C.steel
D.tires

單項選擇題

Manila lines in which the strands are right-hand laid（）.

A.should be coiled in a clockwise direction
B.should be coiled in a counterclockwise direction
C.may be coiled either clockwise or counterclockwise
D.should never be coiled

Neglecting friction，you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgs.Which of the following tackles would you use?（）.

你可能感興趣的試題

Manila slings should not be used to load（）.

Manila lines in which the strands are right-hand laid（）.

Neglecting friction，you desire to lift a 300 kgs weight with a stress on the hauling part of 100 kgs.Which of the following tackles would you use?（）.