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structural analysis MCQs

Practise focused structural analysis questions with marked answers for exam preparation and subject revision.

structural analysis Mcqs

1. The degree of kinematic indeterminacy of a pin-jointed space frame is_____________?
0

A. re j is number of joints and r is reaction components

B. 2j-r

C. j-3r

D. j-2r

E. 3j-r

2. In column analogy method, the area of an analogous column for a fixed beam of span L and flexural rigidity El is taken as__________________?
0

A. L/3EI

B. L/2EI

C. L/4EI

D. L/EI

3. Which of the following methods of structural analysis is a force method ?
0

A. none of the above

B. column analogy method

C. moment distribution method

D. slope deflection method

4. The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in_________________?
0

A. inclined direction

B. the direction in which the deflection is required

C. vertical direction

D. horizontal direction

5. Select the correct statement?
0

A. Flexibility matrix is a square symmetrical matrix

B. Stiffness matrix is a square symmetrical matrix

C. both A. and B.

D. none of the above

6. When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that___________________?
0

A. the head of the load reaches the section

B. the tail of the load reaches the section

C. the load position should be such that the section divides it equally on both sides

D. the load position should be such that the section divides the load in the same ratio as it divides the

7. Castiglianos first theorem is applicable_______________?
0

A. for statically determinate structures only

B. only when principle of superposition is valid

C. when the system behaves elastically

D. none of the above

8. The degree of static indeterminacy of a rigid-jointed space frame is_________________?
0

A. 3m + r 3j

B. m + r 2j

C. 6m + r 6j

D. m + r 3j

E. re m, r and j have their usual meanings

9. For a single point load W moving on a symmetrical three hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is__________________?
0

A. 0.25 L

B. 0.234 L

C. 0.5 L

D. 0.211 L

10. If in a pin-jointed plane frame (m + r) > 2j, then the frame is________________?
0

A. none of the above

B. unstable

C. stable and statically determinate

D. re m is number of members, r is reaction components and j is number of joints

E. stable and statically indeterminate

11. Bending moment at any section in a conjugate beam gives in the actual beam_________________?
0

A. deflection

B. slope

C. bending moment

D. curvature

12. The width of the analogous column in the method of column analogy is _________________?
0

A. 2/EI

B. 1/EI

C. 1/4 EI

D. 1/2 EI

13. The deformation of a spring produced by a unit load is called _________________?
0

A. flexibility

B. unit strain

C. influence coefficient

D. stiffness

14. When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when________________?
0

A. none of the above

B. the wheel load under consideration is midway between the centre of span and the centre of gravity of the load system

C. the centre of gravity of the load system is midway between the centre of span and wheel load under consi-deration

D. the centre of span is midway between the centre of gravity of the load system and the wheel load under consideration

15. When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies_______________?
0

A. more than the left half span

B. whole of left half span

C. whole span

D. less than the left half span

16. The number of independent equations to be satisfied for static equilibrium in a space structure is___________________?
0

A. 6

B. 2

C. 3

D. 4

17. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of__________________?
0

A. infinite length

B. none of the above

C. zero moment of inertia

D. zero length

18. In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always__________________?
0

A. 1

B. less than 1

C. greater than 1

D. zero

19. The carryover factor in a prismatic member whose far end is fixed is___________________?
0

A. 4-Mar

B. 1

C. 1/2

D. 0

20. In the slope deflection equations, the deformations are considered to be caused by________________?
0

A. correct answer is

B. shear force

C. ) axial force</strong>

D. bending moment

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