试题与答案

对裸眼旁通阀的液压延时试验应加压（）kN，延时1～4min合格。A、50 B、100

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题型：单项选择题

题目：

对裸眼旁通阀的液压延时试验应加压（）kN，延时1～4min合格。

A、50

B、100

C、133.5

D、180

答案：

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