問題詳情

13.What devices are installed to isolate machinery, equipment, and piping components for systemoperation, maintenance and overhaul, and damage control?
(A)Insulators
(B) Stop valves
(C)Relief valves
(D)Orifices

參考答案

答案:B
難度:適中0.470588
統計:A(0),B(8),C(5),D(0),E(0)

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