Discussion
Home ‣ Mechanical Engineering ‣ Strength of Materials Comments
- Question
In a tensile test, when the material is stressed beyond elastic limit, the tensile strain __________ as compared to the stress.
Options- A. decreases slowly
- B. increases slowly
- C. decreases more quickly
- D. increases more quickly
- Correct Answer
- increases more quickly
- 1. In the above question, the ratio of stiffness of spring 'B' to spring 'A' will be
Options- A. 2
- B. 4
- C. 6
- D. 8 Discuss
- 2. When a body is subjected to a direct tensile stress (?) in one plane, then normal stress on an oblique section of the body inclined at an angle ? to the normal of the section is
Options- A. ? cos ?
- B. ? cos2 ?
- C. ? sin ?
- D. ? sin2 ? Discuss
- 3. For biaxial stress, the planes of maximum shear are at right angles to each other and are inclined at 45° to the principal planes.
Options- A. True
- B. False Discuss
- 4. A thin cylindrical shell of diameter (d), length (l) and thickness (t)is subjected to an internal pressure (p). The hoop stress in the shell is
Options- A. pd/t
- B. pd/2t
- C. pd/4t
- D. pd/6t Discuss
- 5. A steel bar 2 m long, 20 mm wide and 10 mm thick is subjected to a pull of 2 kN. If the same bar is subjected to a push of 2 kN, the Poission's ratio of the bar in tension will be __________ the Poisson's ratio for the bar in compression.
Options- A. equal to
- B. less than
- C. greater than Discuss
- 6. A pressure vessel is said to be a thick shell, when
Options- A. it is made of thick sheets
- B. the internal pressure is very high
- C. the ratio of wall thickness of the vessel to its diameter is less than 1/10.
- D. the ratio of wall thickness of the vessel to its diameter is greater than 1/10. Discuss
- 7. The maximum bending moment of a simply supported beam of span l and carrying a point load W at the centre of beam, is
Options- A. Wl/4
- B. Wl/2
- C. Wl
- D. Wl2/4 Discuss
- 8. Within elastic limit, shear stress is __________ shear strain.
Options- A. equal to
- B. less than
- C. directly proportional to
- D. inversely proportional to Discuss
- 9. The planes, which carry no shear stress, are known as principal planes.
Options- A. True
- B. False Discuss
- 10. In the below figure, the plastic range occurs
Options- A. before point A
- B. beyond point A
- C. between points A and D
- D. between points D and E Discuss
Strength of Materials problems
Search Results
Correct Answer: 8
Correct Answer: ? cos2 ?
Correct Answer: True
Correct Answer: pd/2t
Correct Answer: equal to
Correct Answer: the ratio of wall thickness of the vessel to its diameter is greater than 1/10.
Correct Answer: Wl/4
Correct Answer: directly proportional to
Correct Answer: True
Correct Answer: beyond point A
Comments
There are no comments.More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.