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47.一矩形斷面樑之斷面寬為 b,高為 4b。若將斷面改成寬為 2b 之正方形,則此樑可承受之力矩會變為原來之 若干倍? (A) 1 (B) 1\/2 (C) 1\/3 (D) \u
問題詳情
47.一矩形斷面樑之斷面寬為 b,高為 4b。若將斷面改成寬為 2b 之正方形,則此樑可承受之力矩會變為原來之
若干倍?
(A) 1
(B) 1/2
(C) 1/3
(D) u0004 1/4
參考答案
上一篇 :
46.樑長為 L 且自重不計,則關於樑受力產生最大彎矩之敘述,下列何者正確? (A) 簡支樑中點承受集中荷重 P 作用,最大彎矩為 PL\/2 (B) 簡支樑全樑承受均佈荷重 w 作用,最大彎矩為
下一篇 :
48.如【圖 48】所示,A 點彎矩之絕對值為多少 N-m? (A) 400 (B) 800 (C) 1600 (D) 2000
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