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
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The Castigliano’s second theorem can be used to compute deflections________________?
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For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust______________?
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
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A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be________________?
A. is increased
B. is decreased
C. remains unchanged
D. becomes zero
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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_______________?
A. 8 kN.m
B. 15 kN.m
C. 30 kN.m
D. 60 kN.m
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When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when________________?
A. less than the left half span
B. whole of left half span
C. more than the left half span
D. whole span
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Which of the following is not the displacement method ?
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
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If in a rigid-jointed space frame, (6m + r) < 6j, then the frame is_______________?
A. Equilibrium method
B. Column analogy method
C. Moment distribution method
D. Kani’s method
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Effects of shear force and axial force on plastic moment capacity of a structure are respectively to_________________?
A. unstable
B. stable and statically determinate
C. stable and statically indeterminate
D. none of the above
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Which of the following methods of structural analysis is a displacement method ?
A. increase and decrease
B. increase and increase
C. decrease and increase
D. decrease and decrease