Discussion
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- Question
If a circular beam of diameter d experiences a longitudinal strain
and a lateral strain 
the volumetric strain is
Options- A.
- B.
- C.
- D.
- E. none of these.
- Correct Answer
-
- 1. 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. Discuss
- 2. The effect of arching a beam, is
Options- A. to reduce the bending moment throughout
- B. to increase the bending moment throughout
- C. nothing on the bending throughout
- D. ail the above. Discuss
- 3. The equivalent length of a column fixed at both ends, is
Options- A. 0.5 l
- B. 0.7 l
- C. l
- D. 2 l
- E. 1.5 l. Discuss
- 4. A beam is said to be of uniform strength, if
Options- A. B.M. is same throughout the beam
- B. shear stress is same throughout the beam
- C. deflection is same throughout the beam
- D. bending stress is same at every section along its longitudinal axis. Discuss
- 5. If the depth of a simply supported beam carrying an isolated load at its centre, is doubled, the deflection of the beam at the centre will be changed by a factor of
Options- A. 2
- B. 1/2
- C. 8
- D. 1/8
- E. 4 Discuss
- 6. 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. Discuss
- 7. 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. Discuss
- 8. 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. Discuss
- 9. 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. Discuss
- 10. The moment diagram for a cantilever which is subjected to a uniformly distributed load will be a
Options- A. triangle
- B. rectangle
- C. parabola
- D. cubic parabola. Discuss
Strength of Materials problems
Search Results
Correct Answer: cubic parabola.
Correct Answer: to reduce the bending moment throughout
Correct Answer: 0.5 l
Correct Answer: bending stress is same at every section along its longitudinal axis.
Correct Answer: 1/8
Correct Answer: h/4
Correct Answer: n : 1
Correct Answer: square beam is more economical
Correct Answer: all the above.
Correct Answer: parabola
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