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.Management Sciences
Category: Structural Analysis
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
A rigid-jointed plane frame is stable and statically determinate if_______________?
A. (m + r) = 2j
B. (m + r) = 3j
C. (3m + r) = 3j
D. (m + 3r) = 3j
where m is number of members, r is reaction components and j is number of joints
Sinking of an intermediate support of a continuous beam________________?
Consider the following statements
1. reduces the negative moment at support
2. increases the negative moment at support
3. reduces the positive moment at support
4. increases the positive moment at the centre of span
A. i and 4 are correct
B. 1 and 3 are correct
C. 2 and 3 are correct
D. 2 and 4 are correct
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
Which of the following is not the displacement method ?
A. Equilibrium method
B. Column analogy method
C. Moment distribution method
D. Kani’s method
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 consi-deration
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
The degree of static indeterminacy of a pin-jointed space frame is given by_________________?
A. m + r – 2j
B. m + r – 3j
C. 3m + r – 3j
D. m + r + 3j
where m is number of unknown member forces, r is unknown reaction components and j is number of joints
Muller Breslau’s principle for obtaining influence lines is applicable to___________________?
i) trusses
ii) statically determinate beams and frames
iii) statically indeterminate structures, the material of which is elastic and follows Hooke’s law
iv) any statically indeterminate structure
The correct answer is ?
A. (i), (ii) and (iii)
B. (i), (ii) and (iv)
C. (i) and (ii)
D. only (i)
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
The degree of static indeterminacy up to which column analogy method can be used is__________________?
A. 2
B. 3
C. 4
D. unrestricted
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