問題詳情

30. Which device is used to provide a limited amount of electric power for a finite periods oftime to certain loads in case of a power failure on its supply side, with no break in the flow ofpower to the loads?
(A) Power governor
(B) Transformer
(C) Solid-state power converter
(D) Uninterruptible power supply

參考答案

答案:D
難度:適中0.507042
統計:A(11),B(20),C(4),D(36),E(0)

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