Strength of Materials problems
- 1. An overhanging beam must overhang on both sides.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
- 2. A thin spherical shell of diameter (d) and thickness (t) is subjected to an internal pressure (p). The stress in the shell material is
Options- A. pd/t
- B. pd/2t
- C. pd/4t
- D. pd/8t Discuss
Correct Answer: pd/4t
- 3. The maximum tangential stress in a thick cylindrical shell is always __________ the internal pressure acting on the shell.
Options- A. equal to
- B. less than
- C. greater than Discuss
Correct Answer: greater than
- 4. The bending moment in the centre of a simply supported beam carrying a uniformly distributed load of w per unit length is
Options- A. zero
- B. wl2/2
- C. wl2/4
- D. wl2/8 Discuss
Correct Answer: wl2/8
- 5. The strain energy stored in a spring, when subjected to maximum load, without suffering permanent distortion, is known as
Options- A. impact energy
- B. proof resilience
- C. proof stress
- D. modulus of resilience Discuss
Correct Answer: proof resilience
- 6. The given figure shows the Mohr's circle of stress for two unequal and like principal stresses (?x and ?y) acting at a body across two mutually perpendicular planes. The normal stress on an oblique section making an angle ? with the minor principle plane is given by
Options- A. OC
- B. OP
- C. OQ
- D. PQ Discuss
Correct Answer: OQ
- 7. If percentage reduction in area of a certain specimen made of material 'A' under tensile test is 60% and the percentage reduction in area of a specimen with same dimensions made of material 'B' is 40%, then
Options- A. the material A is more ductile than material B
- B. the material B is more ductile than material A
- C. the ductility of material A and B is equal
- D. the material A is brittle and material B is ductile Discuss
Correct Answer: the material A is more ductile than material B
- 8. A lap joint is always in __________ shear.
Options- A. single
- B. double Discuss
Correct Answer: single
- 9. In a beam where shear force changes sign, the bending moment will be
Options- A. zero
- B. minimum
- C. maximum
- D. infinity Discuss
Correct Answer: maximum
- 10. When a thin cylindrical shell is subjected to an internal pressure, there will be
Options- A. a decrease in diameter and length of the shell
- B. an increase in diameter and decrease in length of the shell
- C. a decrease in diameter and increase in length of the shell
- D. an increase in diameter and length of the shell Discuss
Correct Answer: an increase in diameter and length of the shell
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