大学MOOC Structural Mechanics I(Dalian University of Technology)1457905183 最新慕课完整章节测试答案
Week 12
Unit testing of chapter 9
1、单选题：
选项：
A: A
B: B
C: C
D: D
答案: 【 B】
2、单选题：
选项：
A: A
B: B
C: C
D: D
答案: 【 B】
3、单选题：
选项：
A: A
B: B
C: C
D: D
答案: 【 C】
4、判断题：
选项：
A: 正确
B: 错误
答案: 【 正确】
5、判断题：
选项：
A: 正确
B: 错误
答案: 【 错误】
6、判断题：
选项：
A: 正确
B: 错误
答案: 【 错误】
7、判断题：
选项：
A: 正确
B: 错误
答案: 【 正确】
8、判断题：
选项：
A: 正确
B: 错误
答案: 【 错误】
9、判断题：
选项：
A: 正确
B: 错误
答案: 【 错误】
10、判断题：
选项：
A: 正确
B: 错误
答案: 【 正确】
Week 14
Unit testing of chapter 10
1、单选题：
选项：
A: A
B: B
C: C
D: D
答案: 【 D】
2、单选题：
选项：
A: A
B: B
C: C
D: D
答案: 【 D】
3、单选题：
选项：
A: A
B: B
C: C
D: D
答案: 【 A】
4、单选题：
选项：
A: A
B: B
C: C
D: D
答案: 【 D】
5、单选题：
选项：
A: A
B: B
C: C
D: D
答案: 【 A】
6、单选题：
选项：
A: A
B: B
C: C
D: D
答案: 【 B】
7、单选题：
选项：
A: A
B: B
C: C
D: D
答案: 【 B】
8、判断题：
选项：
A: 正确
B: 错误
答案: 【 正确】
9、判断题：
选项：
A: 正确
B: 错误
答案: 【 正确】
10、判断题：
选项：
A: 正确
B: 错误
答案: 【 错误】
11、判断题：
选项：
A: 正确
B: 错误
答案: 【 错误】
12、判断题：
选项：
A: 正确
B: 错误
答案: 【 错误】
13、判断题：
选项：
A: 正确
B: 错误
答案: 【 正确】
14、填空题：
答案: 【 0】
15、填空题：
答案: 【 20/3】
16、填空题：
答案: 【 8】
Week 2
Unit testing of chapter 2
1、单选题：
The system removed any one of its support link is a geometrically stable system with no redundant constraints.
选项：
A: 
B: 
C: 
D: 
答案: 【 】
2、单选题：
The number of redundant constraints in the system is （）
选项：
A: 1
B: 2
C: 3
D: 4
答案: 【 4】
3、单选题：
The geometric construction of the system as the figure shown is （）
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically stable system without redundant constraints】
4、单选题：
The geometric construction of the system as the figure shown is （）
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically stable system without redundant constraints】
5、单选题：
The hinge A can move in vertical direction in the system as the figure shown, which means that the length of member AB and AC can change but keeping in equal. The position of other joints can’t be changed. If the structure is a stable system, which of the following is correct.
选项：
A: h≠2m
B: h≠4m
C: h≠4m or h≠∞
D: h≠2m or h≠∞
答案: 【 h≠2m or h≠∞】
6、单选题：
The geometric construction of the system as the figure shown is （）
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically stable system with redundant constraints】
7、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically instantaneously unstable system】
8、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Constantly changeable system】
9、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically stable system without redundant constraints】
10、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically stable system without redundant constraints】
11、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically stable system without redundant constraints】
12、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically stable system without redundant constraints】
13、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically stable system without redundant constraints】
14、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Constantly changeable system】
15、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically instantaneously unstable system】
16、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: a stable system with no redundant constraints
B: . a stable system with redundant constraints
C: an unstable system which can deform randomly
D: an instantaneously unstable system
答案: 【 an unstable system which can deform randomly】
17、单选题：
The geometric construction of the system as the figure shown is ()
选项：
A: Geometrically stable system without redundant constraints
B: Geometrically stable system with redundant constraints
C: Constantly changeable system
D: Geometrically instantaneously unstable system
答案: 【 Geometrically stable system with redundant constraints】
18、判断题：
If the computing degrees of freedom W of a planar system is greater than 0, it is impossible to be a geometrically stable system.
选项：
A: 正确
B: 错误
答案: 【 正确】
19、判断题：
If the computing degrees of freedom W of a planar system is less than 0, the system must be a statically indeterminate structure.
选项：
A: 正确
B: 错误
答案: 【 错误】
20、判断题：
Three rigid bodies connected by three hinges pairwisely form a geometrically stable system without redundant constraints.
选项：
A: 正确
B: 错误
答案: 【 错误】
21、判断题：
Two links connecting two rigid bodies can be equivalently replaced by a virtual hinge
选项：
A: 正确
B: 错误
答案: 【 正确】
22、判断题：
Several simple geometric construction rules of geometric stable system can be attributed to one basic rule: the basic triangle rule.
选项：
A: 正确
B: 错误
答案: 【 正确】
Week 4
Unit testing of chapter 4
1、单选题：
The shear force of section K in the structure is （）.
选项：
A: -F
B: -F/2
C: 0
D: F
答案: 【 0】
2、单选题：
The free body diagram of member AB in a structure is shown in the figure. The shape of its bending moment diagram is ().
选项：
A: 
B: 
C: 
D: 
答案: 【 】
3、单选题：
As shown in the figure MA=______, MC=______。（When the lower side is in tension, the bending moment is positive ）
选项：
A: Fa；Fa
B: -Fa；-Fa
C: Fa；-2Fa
D: -2Fa；Fa
答案: 【 Fa；Fa】
4、单选题：
The bending moment diagram of a simply supported beam is shown in the figure. Segment AB is a quadratic parabola and the bending moment at section B is 2kN·m. The slope has no mutation, and the bending moment diagram of segment BC is an oblique line. Then the external loads on the beam is shown in ( ) .
