問題詳情

38.Strainers should be provided with indicators to provide warning of the necessity for cleaning the strainers.
(A)pressure-drop
(B)temperature-drop
(C)reverse-flow
(D)overflow

參考答案

答案:A
難度:適中0.555556
統計:A(80),B(21),C(21),D(22),E(0)

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