According to the regulations，what fire safety control feature is required in quick-closing shut off valves?（） -题库考试答案搜索网

According to the regulations，what fire safety control feature is required in quick-closing shut off valves?（）

单选题

2022-01-05 16:31

A、Electrical cut off switch
B、A fusible link
C、Manual cut off switch
D、A water spray actuator

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正确答案

B

试题解析

标签：探火与消防设备

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