問題詳情

32. When there is danger of the passage of foreign matter, which may obstruct valves orpiping, or damage machinery, so what element should be fitted in the pipe-lines?
(A) Flange
(B) Strainer
(C) Ejector
(D) Salinometer

參考答案

答案:B
難度:簡單0.777778
統計:A(2),B(7),C(0),D(0),E(0)

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