問題詳情
10. This type of trap uses the pressure energy of steam to close the valvewhich consists of a simple metal disc. What type of operated traps is abovedescription?
(A) Thermodynamic trap
(B) Thermostatic trap
(C) Vacuum trap
(D) Mechanical trap
參考答案
答案：A
難度：適中0.505376
統計：A(47),B(23),C(14),D(9),E(0)