你可能感興趣的試題

Which of the following is not a recommended safe practice?（）

A.Securing equipment against slipping or drifting
B.Operating machinery at its recommended speed
C.Repairing loose handles on tools before using
D.Using tools for purpose for which they are not designed

單項(xiàng)選擇題

When required to work where there may be explosive gases, you should use tools which are （）

A.approved by the Coast Guard
B.high carbon steel
C.fixed with a ferrous cover
D.nonsparking