小菸於實驗室做ㄧ拉力測試，在一長50cm、直徑20cm之圓柱上，受一軸向拉力作用，則下列敘述何者正確？(A)應力愈大，應變愈大 (B)桿件愈長，應變愈大(C)桿件之斷面積愈大，所發生之應變愈大

問題詳情

21. 小菸於實驗室做ㄧ拉力測試，在一長50cm、直徑20cm之圓柱上，受一軸向拉力作用，則下列敘述何者正確？
(A)應力愈大，應變愈大
(B)桿件愈長，應變愈大
(C)桿件之斷面積愈大，所發生之應變愈大
(D)彈性係數愈大，應變愈大

參考答案

答案：A
難度：困難0.333333
統計：A(3),B(5),C(1),D(0),E(0)

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