問題詳情

35.Which type of valve is installed to isolate machinery, equipment, and piping components for systemoperation, maintenance and overhaul, and damage control?
(A)Constant-flow valve
(B)Relief valve
(C)Check valve
(D)Stop valve

參考答案

答案:D
難度:適中0.647059
統計:A(1),B(1),C(4),D(11),E(0)

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