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42. 船上蓄電池充電室內的氫氣濃度介於多少體積百分比之間,均會形成可燃混合氣體?(A)1.0%~5.5% (B)1.4%~7.6% (C)3.5%~23.0% (D)4.1%~74.2%
問題詳情
42. 船上蓄電池充電室內的氫氣濃度介於多少體積百分比之間,均會形成可燃混合氣體?
(A)1.0%~5.5%
(B)1.4%~7.6%
(C)3.5%~23.0%
(D)4.1%~74.2%
參考答案
答案:D
難度:
計算中
-1
書單:
沒有書單,新增
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41. 救生筏之水力釋放裝置於呈現正常而且合理之情況下,主管機關得依規定核准檢驗期限延至幾個月? (A)15 (B)17 (C)19 (D)21
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