4.依據蒙特婁公約規定，下列何種冷媒已被禁用？ (A)NH3 (B)R-134a (C)R-12 (D)R-22

11.In the process of condensing the exhaust steam from the main or auxiliary turbines, steam condensate is recovered and is reused as feedwater. In a properly designed and maintained feedwater system the condensate is collected at the saturation temperature corresponding to compensating pressure. Therefore, which is the false statement? (A)The process inside a condenser is a constant pressure process. (B)The process inside a condenser is a constant temperature process. (C)The process inside an ideal condenser is a isentropic process. (D)The increase of saturation temperature increases the pressure inside a condenser.

4.依據蒙特婁公約規定，下列何種冷媒已被禁用？
(A)NH₃
(B)R-134a
(C)R-12
(D)R-22

相關試題

相關試卷