問題詳情
14. What equipment is used to relieve excess pressure in all pressurevessels including evaporator and in steam, water, oil, and air line?
(A) Throttle valve
(B) Relief valve
(C) Globe valve
(D) Quick closing valve
參考答案
答案：B
難度：簡單0.753425
統計：A(5),B(55),C(9),D(4),E(0)