Strength of Materials problems
- 1. The stress induced in a body, when suddenly loaded, is __________ the stress induced when the same load is applied gradually.
Options- A. equal to
- B. one-half
- C. twice
- D. four times Discuss
Correct Answer: twice
- 2. When a body is subjected to two equal and opposite pushes, as a result of which the body tends to reduce its length, the stress and strain induced is compressive.
Options- A. True
- B. False Discuss
Correct Answer: True
- 3. The bending moment at a point on a beam is the algebraic __________ of all the moments on either side of the point.
Options- A. sum
- B. difference Discuss
Correct Answer: sum
- 4. The simply supported beam 'A' of length l carries a central point load W. Another beam 'B' is loaded with a uniformly distributed load such that the total load on the beam is W. The ratio of maximum deflections between beams A and B is
Options- A. 5/8
- B. 8/5
- C. 5/4
- D. 4/5 Discuss
Correct Answer: 8/5
- 5. In a simple bending of beams, the stress in the beam varies
Options- A. linearly
- B. parabolically
- C. hyperbolically
- D. elliptically Discuss
Correct Answer: linearly
- 6. The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4th of its maximum crushing stress of punch, is equal to (where t = Thickness of the plate)
Options- A. t
- B. 2t
- C. 4t
- D. 8t Discuss
Correct Answer: 4t
- 7. Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is half that of spring 'B' The ratio of deflections in spring 'A' to spring 'B' is
Options- A. 1/8
- B. 1/4
- C. 1/2
- D. 2 Discuss
Correct Answer: 1/2
- 8. Two shafts 'A' and 'B' transmit the same power. The speed of shaft 'A' is 250 r.p.m. and that of shaft 'B' is 300 r.p.m. The shaft 'B' has the greater diameter.
Options- A. True
- B. False Discuss
Correct Answer: False
- 9. When a bar is cooled to - 5°C, it will develop
Options- A. no stress
- B. shear stress
- C. tensile stress
- D. compressive stress Discuss
Correct Answer: tensile stress
- 10. Whenever a material is loaded within elastic limit, stress is __________ strain.
Options- A. equal to
- B. directly proportional to
- C. inversely proportional to Discuss
Correct Answer: directly proportional to
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