問題詳情
40. 空氣斷路器（Aircircuit breaker）的接點系統含有主接點、副接點、弧接點及輔助接點，在關閉（Close）時，下列那一個接點最後接通？
(A) 主接點
(B) 副接點
(C) 弧接點
(D) 輔助接點
(A) 主接點
(B) 副接點
(C) 弧接點
(D) 輔助接點
參考答案
答案：A
難度：適中0.571429
統計：A(20),B(0),C(12),D(2),E(0)
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