Discussion
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- Question
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
- Correct Answer
- equal to
- 1. The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, l = Original length of the body, A = Cross-sectional area of the body, and E = Young's modulus for the material of the body)
Options- A.
- B.
- C.
- D.
Discuss
- 2. The distance between the centre of a rivet hole to the nearest edge of plate, is called
Options- A. margin
- B. pitch
- C. back pitch
- D. diagonal pitch Discuss
- 3. The neutral axis of a transverse section of a beam passes through the centre of gravity of the section and is
Options- A. in the vertical plane
- B. in the horizontal plane
- C. in the same plane in which the beam bends
- D. at right angle to the plane in which the beam bends Discuss
- 4. When a body is subjected to a direct tensile stress (?) in one plane, then tangential or shear stress on an oblique section of the body inclined at an angle ? to the normal of the section is
Options- A. ? sin 2?
- B. ? cos 2?
- C. ?/2 sin 2?
- D. ?/2 cos 2? Discuss
- 5. The values of equivalent length (L) and actual length (l) of a column for both ends hinged is the same
Options- A. Yes
- B. No Discuss
- 6. 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
- 7. 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
- 8. 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
- 9. 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
- 10. 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 Discuss
Strength of Materials problems
Search Results
Correct Answer:
Correct Answer: margin
Correct Answer: at right angle to the plane in which the beam bends
Correct Answer: ?/2 sin 2?
Correct Answer: Yes
Correct Answer: pd/2t
Correct Answer: True
Correct Answer: ? cos2 ?
Correct Answer: 8
Correct Answer: increases more quickly
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