This set of Structural Analysis Multiple Choice Questions & Answers (MCQs) focuses on “DKI and DSI – II”.

A and D are pin supports, B is roller support and C is an internal roller.

1. 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. 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. Sate 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.

A and D are fixed supports, B is an internal pin and C is an internal roller.

4. 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. 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. Sate 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 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.

**Sanfoundry Global Education & Learning Series – Structural Analysis.**

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