试题与答案

如果在结构的同一条传力路线上混合使用铆钉和螺栓,则容易使铆钉超载。这是因为()。A、

题型:单项选择题

题目:

如果在结构的同一条传力路线上混合使用铆钉和螺栓,则容易使铆钉超载。这是因为()。

A、铆钉直径小

B、铆钉配合较紧,先受力

C、螺栓上作用着预紧力

D、铆钉不能承受拉力

答案:

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参考答案:二价;三价

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