問題詳情

23.An ejector’s performance can be rated based on the ratio of the pressure at the discharge portdivided by the pressure at the suction port, referred to as the compression ratio. For the ejector with pressures at the discharge and suction ports of 2 and 0.5 bars, the compression ratio is .
(A)1
(B)1.5
(C)2.5
(D)4

參考答案

答案:D
難度:適中0.653846
統計:A(0),B(5),C(3),D(17),E(0)

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