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0.611111
統計:A(77),B(23),C(13),D(11),E(0)

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