問題詳情

9. The valves give full bore flow without change of direction. They consist of chests divided atmid-length by a double membrane having central circular opening, furnished with seat and taperedor parallel on their inner. What kind of valves is above description?
(A) Check valve
(B) Globe valve
(C) Butterfly valve
(D) Gate valve

參考答案

答案:D
難度:非常困難0.175
書單:沒有書單,新增

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