14.輸配水管線經過橋樑或地勢起伏之較高處,應裝設下列何種閥類以自動排出管內之空氣,以免阻礙水流?
(A)減壓閥(Pressure Reducing Valve)
(B)排氣閥(Air Release Valve)又稱(Air Valve)
(C)安全閥(Safety Valve)
(D)壓力制閥(Pressure-Kegulate Valve)

答案:登入後查看
統計: A(25), B(1009), C(20), D(7), E(0) #2160983