Strength of Materials problems
- 1. The pull required to shear off a rivet, in double shear, per pitch length is
Options- A. ?/4 x d2 x ?t
- B. ?/4 x d2 x ?
- C. ?/2 x d2 x ?t
- D. ?/2 x d2 x ? Discuss
Correct Answer: ?/2 x d2 x ?
- 2. The ductility of the material __________ with the decrease in percentage elongation of a specimen under tensile test.
Options- A. increases
- B. decreases
- C. remains same Discuss
Correct Answer: decreases
- 3. The section modulus (Z) of a beam is given by
Options- A. I/y
- B. I.y
- C. y/I
- D. M/I Discuss
Correct Answer: I/y
- 4. The springs in cars are used to store strain energy.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Incorrect
- 5. The shear force of a cantilever beam of length l and carrying a gradually varying load from zero at the free end and w per unit length at the fixed end is __________ at the fixed end.
Options- A. zero
- B. wl/4
- C. wl/2
- D. wl Discuss
Correct Answer: wl/2
- 6. For riveting, the size of hole drilled in plates is __________ shank diameter of rivet.
Options- A. equal to
- B. less than
- C. greater than Discuss
Correct Answer: greater than
- 7. If the modulus of elasticity for a given material is twice its modulus of rigidity, then bulk modulus is equal to
Options- A. 2C
- B. 3C
- C.
- D.
Discuss
Correct Answer:
- 8. When a body is subjected to two equal and opposite pulls, as a result of which the body tends to extend its length, the stress and strain induced is
Options- A. compressive stress, tensile strain
- B. tensile stress, compressive strain
- C. tensile stress, tensile strain
- D. compressive stress, compressive strain Discuss
Correct Answer: tensile stress, tensile strain
- 9. The stress developed in the material without any permanent set is called
Options- A. elastic limit
- B. yield stress
- C. ultimate stress
- D. breaking stress Discuss
Correct Answer: elastic limit
- 10. Two shafts 'A' and 'B' are made of same material. The shaft 'A' is of diameter D and shaft 'B' is of diameter D/2. The strength of shaft 'B' is __________ as that of shaft 'A'
Options- A. one-eighth
- B. one-fourth
- C. one-half
- D. four times Discuss
Correct Answer: one-eighth
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