Discussion
Home ‣ Mechanical Engineering ‣ Strength of Materials Comments
- Question
A closely-coiled helical spring is cut into two halves. The stiffness of the resulting spring will be
Options- A. same
- B. double
- C. half
- D. one-fourth
- Correct Answer
- double
- 1. A rectangular beam of length l supported at its two ends carries a central point load W. The maximum deflection occurs
Options- A. at the ends
- B. at l/3 from both ends
- C. at the centre
- D. none of these Discuss
- 2. In a watch, the spring is used to store strain energy. This energy is released
Options- A. to stop the watch
- B. to run the watch
- C. to change the time
- D. all of these Discuss
- 3. The ultimate tensile stress for mild steel is __________ the ultimate compressive stress.
Options- A. equal to
- B. less than
- C. more than Discuss
- 4. The shear modulus of most materials with respect to the modulus of elasticity is
Options- A. equal to half
- B. less than half
- C. more than half
- D. none of these Discuss
- 5. In leaf springs, the maximum bending stress developed in the plates is (where W = Load acting on the spring, l = Span of the spring, n = Number of plates, b = Width of plates, and t = Thickness of plates)
Options- A.
- B.
- C.
- D.
Discuss
- 6. The modulus of elasticity for mild steel is approximately equal to
Options- A. 10 kN/mm2
- B. 80 kN/mm2
- C. 100 kN/mm2
- D. 210 kN/mm2 Discuss
- 7. A thick pressure vessel is always used for the generation of steam, as it can withstand high pressures.
Options- A. True
- B. False Discuss
- 8. A beam supported on more than two supports is called
Options- A. simply supported beam
- B. fixed beam
- C. overhanging beam
- D. continuous beam Discuss
- 9. The assumption made in Euler's column theory is that
Options- A. the failure of column occurs due to buckling alone
- B. the length of column is very large as compared to its cross-sectional dimensions
- C. the column material obeys Hooke's law
- D. all of the above Discuss
- 10. In a thin cylindrical shell subjected to an internal pressure p, the ratio of longitudinal stress to the hoop stress is
Options- A. 1/2
- B. 3/4
- C. 1
- D. 1.5 Discuss
Strength of Materials problems
Search Results
Correct Answer: at the centre
Correct Answer: to run the watch
Correct Answer: more than
Correct Answer: less than half
Correct Answer:
Correct Answer: 210 kN/mm2
Correct Answer: False
Correct Answer: continuous beam
Correct Answer: all of the above
Correct Answer: 1/2
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.