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1. |
## Principle of superposition is applicable when |

A. | deflections are linear functions of applied forces |

B. | material obeys hooke\s law |

C. | the action of applied forces will be affected by small deformations of the structure |

D. | none of the above |

Answer» A. deflections are linear functions of applied forces |

2. |
## The Castigliano's second theorem can be used to compute deflections |

A. | in statically determinate structures only |

B. | for any type of structure |

C. | at the point under the load only |

D. | for beams and frames only |

Answer» B. for any type of structure |

3. |
## When a load crosses a through type Pratt truss in the direction left to right, the nature of force in any diagonal member in the left half of the span would |

A. | change from compression to tension |

B. | change from tension to compression |

C. | always be compression |

D. | always be tension |

Answer» A. change from compression to tension |

4. |
## Which of the following methods of structural analysis is a force method? |

A. | slope deflection method |

B. | column analogy method |

C. | moment distribution method |

D. | none of the above |

Answer» B. column analogy method |

5. |
## Which of the following is not the displacement method? |

A. | equilibrium method |

B. | column analogy method |

C. | moment distribution method |

D. | kani\s method |

Answer» B. column analogy method |

6. |
## For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust |

A. | is increased |

B. | is decreased |

C. | remains unchanged |

D. | becomes zero |

Answer» C. remains unchanged |

7. |
## The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in |

A. | vertical direction |

B. | horizontal direction |

C. | inclined direction |

D. | the direction in which the deflection is required |

Answer» D. the direction in which the deflection is required |

8. |
## The principle of virtual work can be applied to elastic system by considering the virtual work of |

A. | internal forces only |

B. | external forces only |

C. | internal as well as external forces |

D. | none of the above |

Answer» C. internal as well as external forces |

9. |
## If in a rigid-jointed space frame, (6m + r) < 6j, then the frame is |

A. | unstable |

B. | stable and statically determinate |

C. | stable and statically indeterminate |

D. | none of the above |

Answer» A. unstable |

10. |
## The three moments equation is applicable only when |

A. | the beam is prismatic |

B. | there is no settlement of supports |

C. | there is no discontinuity such as hinges within the span |

D. | the spans are equal |

Answer» C. there is no discontinuity such as hinges within the span |

11. |
## Which of the following methods of structural analysis is a displacement method? |

A. | moment distribution method |

B. | column analogy method |

C. | three moment equation |

D. | none of the above |

Answer» A. moment distribution method |

12. |
## The fixed support in a real beam becomes in the conjugate beam a |

A. | roller support |

B. | hinged support |

C. | fixed support |

D. | free end |

Answer» D. free end |

13. |
## For a symmetrical two hinged parabolic arch, if one of the supports settles horizontally, then the horizontal thrust |

A. | is increased |

B. | is decreased |

C. | remains unchanged |

D. | becomes zero |

Answer» B. is decreased |

14. |
## A load 'W T maximum bending moment at 0.4 1 from the left support is |

A. | 0.16 wl |

B. | 0.20 wl |

C. | 0.24 wl |

D. | 0.25 wl |

Answer» C. 0.24 wl |

15. |
## In the displacement method of structural analysis, the basic unknowns are |

A. | displacements |

B. | force |

C. | displacements and forces |

D. | none of the above |

Answer» A. displacements |

16. |
## In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always |

A. | zero |

B. | less than 1 |

C. | 1 |

D. | greater than 1 |

Answer» C. 1 |

17. |
## The width of the analogous column in the method of column analogy is |

A. | 2/ei |

B. | 1/ei |

C. | 1/2 ei |

D. | 1/4 ei |

Answer» B. 1/ei |

18. |
## L EI |

A. | l/ei |

B. | l/2ei |

C. | l/3ei |

D. | l/4ei |

Answer» A. l/ei |

19. |
## Degree of kinematic indeterminacy of a pin-jointed plane frame is given by |

A. | 2j - r |

B. | j - 2r |

C. | 3j - r |

D. | 2j + r |

Answer» A. 2j - r |

20. |
## The number of independent equations to be satisfied for static equilibrium of a plane structure is |

A. | 1 |

B. | 2 |

C. | 3 |

D. | 6 |

Answer» C. 3 |

21. |
## While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of |

A. | zero length |

B. | infinite length |

C. | zero moment of inertia |

D. | none of the above |

Answer» A. zero length |

22. |
## Select the correct statement |

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 |

Answer» C. both (a) and (b) |

23. |
## W L x x |

A. | 0.211 l |

B. | 0.25 l |

C. | 0.234 l |

D. | 0.5 l |

Answer» A. 0.211 l |

24. |
## Bending moment at any section in a conjugate beam gives in the actual beam |

A. | slope |

B. | curvature |

C. | deflection |

D. | bending moment |

Answer» C. deflection |

25. |
## The number of independent displacement components at each joint of a rigid-jointed space frame is |

A. | 1 |

B. | 2 |

C. | 3 |

D. | 6 |

Answer» D. 6 |

26. |
## Independent displacement components at each joint of a rigid-jointed plane frame are |

A. | three linear movements |

B. | two linear movements and one rotation |

C. | one linear movement and two rotations |

D. | three rotations |

Answer» B. two linear movements and one rotation |

27. |
## If there are m unknown member forces, r unknown reaction components and j number of joints, then the degree of static indeterminacy of a pin-jointed plane frame is given by |

A. | m + r + 2j |

B. | m - r + 2j |

C. | m + r - 2j |

D. | m + r - 3j |

Answer» C. m + r - 2j |

28. |
## The carryover factor in a prismatic member whose far end is fixed is |

A. | 0 |

B. | 1/2 |

C. | 3/4 |

D. | 1 |

Answer» B. 1/2 |

29. |
## Effects of shear force and axial force on plastic moment capacity of a structure are respectively to |

A. | increase and decrease |

B. | increase and increase |

C. | decrease and increase |

D. | decrease and decrease |

Answer» D. decrease and decrease |

30. |
## The maximum bending moment due to a train of wheel loads on a simply supported girder |

A. | always occurs at centre of span |

B. | always occurs under a wheel load |

C. | never occurs under a wheel load |

D. | none of the above |

Answer» B. always occurs under a wheel load |

31. |
## When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when |

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

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

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

D. | none of the above |

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

32. |
## Castigliano's first theorem is applicable |

A. | for statically determinate structures only |

B. | when the system behaves elastically |

C. | only when principle of superposition is valid |

D. | none of the above |

Answer» C. only when principle of superposition is valid |

33. |
## Number of unknown internal forces in each member of a rigid jointed plane frame is |

A. | 1 |

B. | 2 |

C. | 3 |

D. | 6 |

Answer» C. 3 |

34. |
## The number of independent equations to be satisfied for static equilibrium in a space structure is |

A. | 2 |

B. | 3 |

C. | 4 |

D. | 6 |

Answer» D. 6 |

35. |
## Degree of static indeterminacy of a rigid-jointed plane frame having 15 members, 3 reaction components and 14 joints is |

A. | 2 |

B. | 3 |

C. | 6 |

D. | 8 |

Answer» C. 6 |

36. |
## The degree of static indeterminacy up to which column analogy method can be used is |

A. | 2 |

B. | 3 |

C. | 4 |

D. | unrestricted |

Answer» B. 3 |

37. |
## A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be |

A. | 8 kn.m |

B. | 15 kn.m |

C. | 30 kn.m |

D. | 60 kn.m |

Answer» C. 30 kn.m |

38. |
## The deformation of a spring produced by a unit load is called |

A. | stiffness |

B. | flexibility |

C. | influence coefficient |

D. | unit strain |

Answer» B. flexibility |

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