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Home ‣ Mechanical Engineering ‣ Strength of Materials Comments
  • Question

  • 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

  • Correct Answer
  • decreases 

    • Strength of Materials problems

    Search Results

    • 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
    • 2. In calculating the strength of a riveted joint in tearing, shearing and crushing, the

    • Options
    • A. actual diameter of rivet is used
    • B. actual diameter of hole drilled for rivet is used
    • C. mean diameter of hole drilled and rivet is used
    • D. smaller of the rivet diameter and hole diameter is used
      • Discuss
    • 3. The longitudinal stress in a riveted cylindrical shell of diameter (d), thickness (t) and subjected to an internal pressure (p) is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. The tensile test is carried on __________ materials.

    • Options
    • A. ductile
    • B. brittle
    • C. malleable
    • D. plastic
      • Discuss
    • 5. When the retained material is subjected to some superimposed or surcharged load, the total horizontal pressure due to surcharged load is (where p = Intensity of the supercharged load)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 6. The section modulus (Z) of a beam is given by

    • Options
    • A. I/y
    • B. I.y
    • C. y/I
    • D. M/I
      • Discuss
    • 7. The springs in cars are used to store strain energy.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 8. 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
    • 9. 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
    • 10. 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

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