單項選擇題當熱力入口總數(shù)不超過()個時,應全數(shù)檢測

A.5
B.6
C.7
D.8


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1.單項選擇題超聲波流量計的分辨率應為()m/s

A.0.001
B.0.01
C.0.1
D.1.0

2.單項選擇題FP-340型號的盤管的額定風量為()m3/h

A.340
B.680
C.1700
D.2380

3.單項選擇題FP-170型號的盤管的額定風量為()m3/h

A.340
B.680
C.1700
D.2380

7.單項選擇題高壓系統(tǒng)風管允許漏風量為()m3/(h·m2)()

A.≤0.1056P0.65
B.≤0.0352P0.65
C.≤0.0117P0.65
D.≤0.0056P0.65

8.單項選擇題中壓系統(tǒng)風管允許漏風量為()m3/(h·m2)()

A.≤0.1056P0.65
B.≤0.0352P0.65
C.≤0.0117P0.65
D.≤0.0056P0.65

9.單項選擇題低壓系統(tǒng)風管允許漏風量為()m3/(h·m2

A.≤0.1056P0.65
B.≤0.0352P0.65
C.≤0.0117P0.65
D.≤0.0056P0.65

10.單項選擇題風冷冷水機組要求室外干球溫度在()℃之間

A.30-33
B.31-34
C.32-35
D.33-36