Strain energy of any member may be defined as work done on it to deform it to re

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Question
Strain energy of any member may be defined as work done on it
Options
A. to deform it
B. to resist elongation
C. to resist shortening
D. all the above.

Correct Answer

all the above.

Strength of Materials problems

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1. The areas of cross-section of a square beam and a circular beam subjected to equal bending moments, are same.
Options
A. circular beam is more economical
B. square beam is more economical
C. both the beams are equally strong
D. both the beams are equally economical
E. none of these.

2. If all the dimensions of a bar are increased in the proportion n : 1, the proportion with which the maximum stress produced in the prismatic bar by its own weight, will increase in the ratio
Options
A. 1 : n
B. n : 1
C. 1 :
D. : 1
E. 1 : n.

3. A cast iron T section beam is subjected to pure bending. For maximum compressive stress to be three times the maximum tensile stress, centre of gravity of the section from flange side is
Options
A. h/4
B. h/3
C. h/2
D. 2/3 h.

5. The moment diagram for a cantilever carrying linearly varying load from zero at its free end and to maximum at the fixed end will be a
Options
A. triangle
B. rectangle
C. parabola
D. cubic parabola.

7. For the same height, the bottom width for no tension,
Options
A. for triangular section is more than rectangular section
B. for rectangular section is more than triangular section
C. for triangular section is same as that of a rectangular section
D. none of these.

9. For a beam having fixed ends, the unknown element of the reactions, is
Options
A. horizontal components at either end
B. vertical components at either end
C. horizontal component at one end and vertical component at the other
D. horizontal and vertical components at both the ends.

10. If S is the shear force at a section of an I-joist, having web depth d and moment of inertia I about its neutral axis, the difference between the maximum and mean shear stresses in the web is,
Options
A.
B.
C.
D.

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