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Structural Analysis - Interview Questions and Answers

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41. To generate the j th column of the flexibility matrix
A. a unit force is applied at coordinate j and the displacements are calculated at all coordinates
B. a unit displacement is applied at co-ordinate j and the forces are calculated at all coordinates
C. a unit force is applied at coordinate j and the forces are calculated at all coordinates
D. a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates
Explanation:
42. Which of the following is not the displacement method ?
A. Equilibrium method
B. Column analogy method
C. Moment distribution method
D. Kani's method
Explanation:
43. When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when
A. the center of gravity of the load system is midway between the center of span and wheel load under consduration
B. the center of span is midway between the center of gravity of the load system and the wheel load under consideration
C. the wheel load under consideration is midway between the center of span and the center of gravity of the load system
D. none of the above
Explanation:
44. The deformation of a spring produced by a unit load is called
A. stiffness
B. flexibility
C. influence coefficient
D. unit strain
Explanation:
45. 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
Explanation: