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[判断题]
室内中压及以上压力管道严密性试验压力应为设计压力且不得低于0.1MPa。在试验压力下稳压不得少于2h,用发泡剂检查全部连接点,无渗漏、压力计量装置无压力降为合格。()
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A.15min
B.30min
C.1h
D.2h
A.20kPa
B.设计压力的1.15倍,且不得小于0.1MPa
C.设计压力的1.15倍,且不得小于0.2MPa
D.设计压力且不得低于5kPa
A.15
B.20
C.30
A.0.5m
B.1.5m
C.2.5m
D.5m
A.0.5m∽5m
B.1.5m∽15m
C.2.5m∽25m
D.5m∽50m