【判断题】【消耗次数:1】
桁架中内力为零的杆件称为零杆。
正确
错误
参考答案:
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相关题目
【判断题】 桁架中的零杆由于内力为零,所以此处杆件可有可无,可以去除以减轻自重。()
①  正确
②  错误
【单选题】 图示桁架中零力杆数为____。
①  5
②  7
③  8
④  9
【单选题】 图示桁架中零力杆数为____。
①  1
②  2
③  4
④  6
【单选题】 图3桁架零杆的个数为( )。图3
①  3个
②  4个
③  5个
④  6个
【判断题】 联合桁架杆件内力只能采用截面法求解。
①  正确
②  错误
【判断题】 零杆不受力,所以它是桁架中不需要的杆,可以撤除。
①  正确
②  错误
【判断题】 静定平面桁架中杆件内力有弯矩、轴力和剪力。
①  正确
②  错误
【判断题】 某荷载作用下桁架可能存在零杆,它不受内力,因此在实际结构中可以将其去掉。( )
①  正确
②  错误
【判断题】 桁架中的零力杆既然不受力,在实际结构中可以去掉。()
①  正确
②  错误
【判断题】 由三杆构成的结点,有两杆共线,且无荷载作用,则不共线的第三杆的内力必为零,共线的两杆的内力相等,符号相反。
①  正确
②  错误
随机题目
【单选题】 I thought you________like something to read,so I have bought you some books.
①  may
②  might
③  could
④  must
【单选题】 A hunter is a man who______ animals.
①  catch
②  catches
③  will catch
④  was catching
【单选题】 If they______to do this work,he might do it some other way.
①  were
②  should
③  will
④  can
【单选题】 “I love you” is never a touch on lightly; its the signal ______ a romantic relationship is serious,or an indication of closeness between parents and children.
①  that
②  why
③  when
④  whether
【单选题】 “ Has he seen this film ? ” “Yes. He______ it several days ago.”
①  saw
②  has seen
③  had seen
④  was seeing
【单选题】 The thought flashed across my mind: “By some ?means or______ she has some information about my engagement. But how?”
①  other
②  others
③  the other
④  the others
【单选题】 You cant imagine what great trouble they have________the problem________.
①  to solve;being talked about
②  solving;discussing
③  to solve;to talk about
④  solving;being discussed
【单选题】 When I saw Mary , she _______on the piano.
①  is playing
②  plays
③  was playing
④  played
【单选题】 “When _______school begin ?” “Next Monday.”
①  has
②  does
③  did
④  is going to
【单选题】 This box is______that one.
①  heavy than
②  so heavy than
③  heavier as
④  as heavy as