Strength of Materials problems
- 1. Young's modulus may be defined as the ratio of
Options- A. linear stress to lateral strain
- B. lateral strain to linear strain
- C. linear stress to linear strain
- D. shear stress to shear strain Discuss
Correct Answer: linear stress to linear strain
- 2. The proof resilience is the maximum strain energy which can be stored in a body.
Options- A. Yes
- B. No Discuss
Correct Answer: Yes
- 3. The Poisson's ratio for steel varies from
Options- A. 0.23 to 0.27
- B. 0.27 to 0.30
- C. 0.31 to 0.34
- D. 0.32 to 0.42 Discuss
Correct Answer: 0.27 to 0.30
- 4. In a riveted joint, when the rivets in.the adjacent rows are staggered in such a way that every rivet is in the middle of the two rivets of the opposite row, the joint is said to be diamond riveted.
Options- A. Yes
- B. No Discuss
Correct Answer: No
- 5. When a shaft, is subjected to torsion, the shear stress induced in the shaft varies from
Options- A. minimum at the centre to maximum at the circumference
- B. maximum at the centre to minimum at the circumference
- C. zero at the centre to maximum at the circumference
- D. maximum at the centre to zero at the circumference Discuss
Correct Answer: zero at the centre to maximum at the circumference
- 6. A shaft of diameter D is subjected to a twisting moment (T) and a bending moment (M). If the maximum bending stress is equal to maximum shear stress developed, then M is equal to
Options- A. T/2
- B. T
- C. 2T
- D. 4T Discuss
Correct Answer: T/2
- 7. The deformation of a bar under its own weight is __________ the deformation, if the same body is subjected to a direct load equal to weight of the body.
Options- A. equal to
- B. half
- C. double
- D. quadruple Discuss
Correct Answer: half
- 8. The ratio of shear modulus to the modulus of elasticity for a Poisson's ratio of 0.4 will be
Options- A. 5/7
- B. 7/5
- C. 5/14
- D. 14/5 Discuss
Correct Answer: 5/14
- 9. When a bar of length l, width b and thickness t is subjected to a push of P, its
Options- A. length, width and thickness increases
- B. length, width and thickness decreases
- C. length increases, width and thickness decreases
- D. length decreases, width and tickness increases Discuss
Correct Answer: length decreases, width and tickness increases
- 10. The maximum shear stress is equal to the radius of Mohr's circle.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
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