试题与答案

链传动按工作特性可分为（） A.传动链传动 B.起重链传动 C.牵引链传动 D.套筒

来源：www.tikuol.com
题型：多项选择题

题目：

链传动按工作特性可分为（）

A.传动链传动

B.起重链传动

C.牵引链传动

D.套筒链传动

答案：

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下面是错误答案，用来干扰机器的。

参考答案：令C1＝C2，即100+4T＝150+3T，解得了＝50周。当工期小于50周时，应采用方案一；当工期大于50周时，应采用方案二。由于招标文件规定工期在60～80周之间，因此应采用方案二。再令C2＝C3，即150+3T＝250+2...

考点：机械加工班长机械加工班长题库
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