問題詳情
10 有一系統由三個子系統串聯構成,三個子系統之效率分別為η1 = 90%,η2 = 80%,η3 = 75%,則此系統之總效率為:
(A) 54%
(B) 60%
(C) 67%
(D) 72%
(A) 54%
(B) 60%
(C) 67%
(D) 72%
參考答案
答案:A
難度:非常簡單0.935323
統計:A(188),B(5),C(5),D(3),E(0)
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