大学MOOC Structural Mechanics I(大连理工大学)1205993803 最新慕课完整章节测试答案
Week 1
Assignment 1
1、单选题：
The number of redundant restraints of the system is ( ).
选项：
A: 1
B: 2
C: 3
D: 4
答案: 【 4】
2、单选题：
The geometric construction of the system as the figure shown is ( ).
选项：
A: a stable system with no redundant restraints
B: a stable system with redundant restraints
C: an unstable system which can deform randomly
D: an instantaneously unstable system
答案: 【 a stable system with no redundant restraints】
3、单选题：
The geometric construction of the system as the figure shown is ( ).
选项：
A: a stable system with no redundant restraints
B: a stable system with redundant restraints
C: an unstable system which can deform randomly
D: an instantaneously unstable system
答案: 【 a stable system with no redundant restraints】
4、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
2 m
B: h
4 m
C: h
4 m or h
D: h
2 m and h
答案: 【 h2 m and h】
5、单选题：
The geometric construction of the system as the figure shown is ( ).
选项：
A: a stable system with no redundant restraints
B: a stable system with redundant restraints
C: an unstable system which can deform randomly
D: an instantaneously unstable system
答案: 【 a stable system with redundant restraints】
6、单选题：
The geometric construction of the system as the figure shown is ( ).
选项：
A: a stable system with no redundant restraints
B: a stable system with redundant restraints
C: an unstable system which can deform randomly
D: an instantaneously unstable system
答案: 【 an unstable system which can deform randomly】
7、单选题：
The geometric construction of the system as the figure shown is ( ).
选项：
A: a stable system with no redundant restraints
B: a stable system with redundant restraints
C: an unstable system which can deform randomly
D: an instantaneously unstable system
答案: 【 a stable system with no redundant restraints】
8、单选题：
The geometric construction of the system as the figure shown is ( ).
选项：
A: Geometrically unstable system which can deform randomly
B: Geometrically stable system with no redundant restraints
C: Geometrically instantaneously unstable system
D: Geometrically stable system with redundant restraints
答案: 【 Geometrically unstable system which can deform randomly】
9、单选题：
The system shown in the figure is ( ).
选项：
A: Constantly changeable system
B: Geometrically stable system without redundant constraints
C: Geometrically instantaneously unstable system
D: Geometrically stable system with redundant constraints
答案: 【 Geometrically stable system without redundant constraints】
10、单选题：
The system shown in the figure is ( ).
选项：
A: Constantly changeable system
B: Geometrically stable system without redundant constraints
C: Geometrically instantaneously unstable system
D: Geometrically stable system with redundant constraints
答案: 【 Geometrically stable system without redundant constraints】
11、单选题：
The system shown in the figure is ( ).
选项：
A: Constantly changeable system
B: Geometrically stable system without redundant constraints
C: Geometrically instantaneously unstable system
D: Geometrically stable system with redundant constraints
答案: 【 Geometrically stable system without redundant constraints】
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