【判断题】【消耗次数:1】
对于平面链杆系,一根链杆减少一个自由度。()
正确
错误
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相关题目
【判断题】 计算平面结构体系的自由度时,一个支座链杆可减少一个自由度。()
①  正确
②  错误
【判断题】 计算平面结构体系的自由度时,一个单铰减少一个自由度。()
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【判断题】 对于平面结构体系,一个点有两个自由度。()
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【判断题】 两根链杆的约束作用相当于一个单铰。()
①  正确
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【单选题】 一个刚片在平面内有()个自由度。
①  1
②  2
③  3
④  4
【单选题】 一个点和一刚片用两根不共线的链杆相连组成()。
①  无多余约束的几何不变体系
②  常变体系
③  有多余约束的几何不变体系
④  瞬变体系
【单选题】 一个点在平面内的自由度有( )个。
①  2
②  3
③  4
④  5
【单选题】 一个点和一个刚片用( )的链杆相连,组成几何不变体系。
①  两根共线的链杆
②  两根不共线的链杆
③  三根不共线的链杆
④  三根共线的链杆
【单选题】 一个刚片在平面内的自由度有( )个。
①  2
②  3
③  4
④  5
【单选题】 一个刚片在平面内的自由度有( )个。
①  2
②  3
③  4
④  5
随机题目
【单选题】 Please ______ you cigar before entering this building.
①  put down
②  put up
③  put off
④  put out
【单选题】 The duke interjected, “What you accuse us ______ is true. I am to blame.”
①  with
②  about
③  /
④  of
【单选题】 The young man ______ the charm of his new colleague, a blonde from England.
①  took a chance
②  threw a book at
③  fell victim to
④  comply with
【单选题】 The family were having dinner when the ______ buzzer of the door sounded.
①  quiet@muted
②  silent
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【单选题】 There were plenty of places to ______ the highway and be unobserved.
①  pull off
②  pull out
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【单选题】 It was essential that her thinking ______ calm and reasoned.
①  remained
②  remain
③  had remained
④  would remain
【单选题】 It ______ to keep calm when confronted with dangers.
①  pays
②  takes
③  costs
④  deserves
【单选题】 The humble bell-boy ______ his tongue reprovingly in front of the princess.
①  flipped
②  chuckled
③  clucked
④  flickered
【单选题】 I am a fisherman ______.
①  by trade
②  for trade
③  on trade
④  of trade
【单选题】 At last this intermezzo _____, and I found myself in front of the gigantic City Hall.
①  came to an end
②  came to the end
③  came to end
④  came to ending