- A.<img src="//img1.yqda.net/question-name/c7/4c2b5d9cd01b8b4eff42465826d599.png" width="49" height="41"/>
- B.<img src="//img1.yqda.net/question-name/ef/8086bd3579b3f524ca98f442a38386.png" width="44" height="48"/>
- C.<img src="//img1.yqda.net/question-name/44/2a9f63c7fdd41e94e9c69957755932.png" width="51" height="37"/>
- D.<img src="//img1.yqda.net/question-name/90/a31a9dfd46e251762f1f54b838848f.png" width="48" height="42"/>
- A.<img src="//img1.yqda.net/question-name/c0/01cb7da2d383c1e71427bebe265edf.png" width="19" height="38"/>
- B.<img src="//img1.yqda.net/question-name/2c/f815a00b02322ae366715702ce88cd.png" width="19" height="46"/>
- C.<img src="//img1.yqda.net/question-name/3a/55b2d722b84bca1d310a14feda7f27.png" width="18" height="42"/>
- D.<img src="//img1.yqda.net/question-name/5a/c8677a22ccebd0603cd38e714030c8.png" width="17" height="38"/>
- A.轴力为零
- B.剪力为零
- C.弯矩为零
- D.内力均不为零
- 19
-
图示结构的超静定次数为
- A.3
- B.4
- C.5
- D.6
- A.-2F<sub>p</sub>a
- B.-F<sub>p</sub>a
- C.F<sub>p</sub>a
- D.2F<sub>p</sub>a
- A.2
- B.3
- C.4
- D.5
- 22
-
图示结构,1杆的轴力等于
- A.-30kN
- B.-15kN
- C.15kN
- D.30kN
- A.<img src="//img1.yqda.net/question-name/88/90eadeba2e6854ab171ae2890a649f.png" width="44" height="26"/>
- B.<img src="//img1.yqda.net/question-name/a3/f64dc22fda3636206243543fa2b5c9.png" width="36" height="25"/>
- C.<img src="//img1.yqda.net/question-name/32/62368004b99d48201f3173c208ea1d.png" width="31" height="28"/>
- D.<img src="//img1.yqda.net/question-name/ce/f02ea74eedc4b5c55ceb08304fe165.png" width="38" height="27"/>
- 24
-
图示体系为
- A.有多余约束的几何不变体系
- B.无多余约束的几何不变体系
- C.瞬变体系
- D.常变体系
- 25
-
图示支座对应的支座反力为
- A.<img src="//img1.yqda.net/question-name/cc/0c5f62dbba8ac50d95d119ea054306.png" width="95" height="47"/>
- B.<img src="//img1.yqda.net/question-name/5c/45013b9ddc5a48163f69c4f43b86e7.png" width="95" height="48"/>
- C.<img src="//img1.yqda.net/question-name/e3/93154c945d98c58a4df13ba61b250f.png" width="69" height="34"/>
- D.<img src="//img1.yqda.net/question-name/f1/9520cd5dee9f55ae567f36da7c6e2c.png" width="108" height="33"/>