This set of Structural Analysis Multiple Choice Questions & Answers (MCQs) focuses on “DKI and DSI – II”.
1. A and D are pin supports, B is roller support and C is an internal roller. How many extra equations are there?
a) 1
b) 2
c) 3
d) 4
View Answer
Explanation: BM is zero at pins and no horizontal force is there too.
2. A and D are pin supports, B is roller support and C is an internal roller. What is the DSI of this system?
a) 3
b) 2
c) 1
d) 0
View Answer
Explanation: 5 variable forces are there and 3+2 five equations are there.
3. State whether this statement is true or false.
This structure is unstable.
a) true
b) false
View Answer
Explanation: This structure is stable. No possibility of any kind of displacement is there.
4. A and D are fixed supports, B is an internal pin and C is an internal roller. How many extra equations are there?
a) 1
b) 2
c) 3
d) 4
View Answer
Explanation: BM is zero at pins and no horizontal force is there too at C. B too will give one extra equations.
5. A and D are fixed supports, B is an internal pin and C is an internal roller. What is the DSI of this system?
a) 3
b) 2
c) 1
d) 0
View Answer
Explanation: 6 variable forces are there and 3+3 five equations are there.
6. State whether this statement is true or false.
This structure is unstable.
a) true
b) false
View Answer
Explanation: This structure is stable. No possibility of any kind of displacement is there.
7. If all segment of a truss forms a triangle, then that truss is:-
a) internally stable
b) externally stable
c) internally unstable
d) externally unstable
View Answer
Explanation: A triangular truss is always internally stable, and if all parts of a truss form a triangle then we can say that about the overall truss.
8. If an internal hinge is there in a frame member, then this member is:-
a) stable
b) unstable
c) determinate
d) can’t say
View Answer
Explanation: 4 equations and 3 unknowns are there. So, it is unstable.
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