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
用户評論
【Wind】評論
9.閥門在不改變方向的情况下提供全通流量。它們由(一個中心圓形開口的雙層閘板，配有閥座，內部呈錐形或平行的)分隔室所構成。上面描述的是什麼類型的閥門？A.止回閥B.球型閥C.蝶閥D.閘閥