Strength of Materials problems
- 1. The relation between Young's modulus (E) and bulk modulus (K) is given by
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 2. On one side of a neutral axis of a beam, there is a tensile stress and on the other side of the beam there is a compressive stress.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Agree
- 3. Two shafts 'A' and 'B' have the same material. The shaft 'A' is solid of diameter 100 mm. The shaft 'B' is hollow with outer diameter 100 mm and inner diameter 50 mm. The torque transmitted by shaft 'B' is __________ as that of shaft 'A'.
Options- A. 1/6
- B. 1/8
- C. 1/4
- D. 15/16 Discuss
Correct Answer: 15/16
- 4. At the neutral axis of a beam
Options- A. the layers are subjected to maximum bending stress
- B. the layers are subjected to minimum bending stress
- C. the layers are subjected to compression
- D. the layers do not undergo any strain Discuss
Correct Answer: the layers do not undergo any strain
- 5. The load required to produce a unit deflection in a spring is called
Options- A. flexural rigidity
- B. torsional rigidity
- C. spring stiffness
- D. Young's modulus Discuss
Correct Answer: spring stiffness
- 6. The bending moment diagram for a simply supported beam carrying a uniformly distributed load of w per unit length, will be
Options- A. a horizontal line
- B. a vertical line
- C. an inclined line
- D. a parabolic curve Discuss
Correct Answer: a parabolic curve
- 7. Which of the following statement is wrong?
Options- A. The deformation of the bar per unit length in the direction of the force is called linear strain.
- B. The Poisson's ratio is the ratio of lateral strain to the linear strain.
- C. The ratio of change in volume to the original volume is called volumetric strain.
- D. The bulk modulus is the ratio of linear stress to the linear strain. Discuss
Correct Answer: The bulk modulus is the ratio of linear stress to the linear strain.
- 8. A bar of copper and steel form a composite system, which is heated to a temperature of 40°C. The stress induced in the copper bar will be
Options- A. tensile
- B. compressive
- C. shear
- D. zero Discuss
Correct Answer: compressive
- 9. A column is said to be a short column, when
Options- A. its length is very small
- B. its cross-sectional area is small
- C. the ratio of its length to the least radhis of gyration is less than 80.
- D. the ratio of its length to the least radius of gyration is more than 80. Discuss
Correct Answer: the ratio of its length to the least radhis of gyration is less than 80.
- 10. In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress is always a tensile stress where as the radial stress is a compressive stress
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
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