【单选题】【消耗次数:1】
中性轴是梁的()交线。
纵向对称面与横截面
纵向对称面与中性层
横截面与中性层
横截面与顶面或底面
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相关题目
【判断题】 中性轴是梁的横截面与中性层的交线。梁发生平面弯曲时,其横截面绕中性轴旋转。( )
①  正确
②  错误
【判断题】 中性轴是梁的横截面与中性层的交线。梁发生平面弯曲时,其横截面绕中性轴旋转。
①  正确
②  错误
【判断题】 梁横截面竖向线位移称为挠度,横截面绕中性轴转过的角度称为转角。
①  正确
②  错误
【单选题】 矩形截面梁横力弯曲时,在横截面的中性轴处()。
①  正应力最大,剪应力为零
②  正应力为零,剪应力最大
③  正应力和剪应力均最大
④  正应力和剪应力均为零
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①  正,正
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【单选题】 中性轴是梁的( )的交线
①  纵向对称面与横截面
②  纵向对称面与中性层
③  横截面与中性层
④  横截面与顶面或底面
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①  最大,零
②  零,最大
③  最大,最大
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①  正确
②  错误
【判断题】 纯弯曲梁任意截面必定存在中性层。
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②  错误
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