起重滑车吊装时,动、定滑轮的最小距离不得小于滑轮轮径的( )倍。A.2 B.3 C.5 D.8

作者: rantiku 人气: - 评论: 0
问题 起重滑车吊装时,动、定滑轮的最小距离不得小于滑轮轮径的( )倍。
选项 A.2 B.3 C.5 D.8
答案 C
解析 滑车组动、定(静)滑车的最小距离不得小于滑轮轮径的5倍;跑绳进入滑轮的偏角不宜小于5度

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