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Home ‣ Mechanical Engineering ‣ Strength of Materials Comments
  • Question

  • When a body is subjected to three mutually perpendicular stresses, of equal intensity, the ratio of direct stress to the corresponding volumetric strain is known as


  • Options
  • A. Young's modulus
  • B. modulus of rigidity
  • C. bulk modulus
  • D. Poisson's ratio

  • Correct Answer
  • bulk modulus 

    • Strength of Materials problems

    Search Results

    • 1. The unit of strain is

    • Options
    • A. N-mm
    • B. N/mm
    • C. mm
    • D. no unit
      • Discuss
    • 2. If the magnitude of direct stress and bending stress is equal, then there will be zero stress at one of the extreme ends of a column.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 3. A circular shaft fixed at, A has diameter D for half of its length and diameter D/2 over the other half, as shown in the below figure. If the rotation of B relative to A is 0.1 radian, the rotation of C relative to B will be

    • Options
    • A. 0.4 radian
    • B. 0.8 radian
    • C. 1.6 radian
    • D. 3.2 radian
      • Discuss
    • 4. The torsional rigidity of a shaft is given by

    • Options
    • A. T/J
    • B. T/?
    • C. T/r
    • D. T/G
      • Discuss
    • 5. The maximum shear stress is equal to the radius of Mohr's circle.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 6. A closely coiled helical spring is of mean diameter (D) and spring wire diameter (d). The spring index is the ratio of

    • Options
    • A. 1/d
    • B. 1/D
    • C. D/d
    • D. d/D
      • Discuss
    • 7. In the below figure, __________ represents glass.

    • Options
    • A. curve A
    • B. curve B
    • C. curve C
    • D. curve D
      • Discuss
    • 8. The pull required to tear off the plate per pitch length is (where p = Pitch of rivets, t = Thickness of plates, and ?t, ? and ?c = Permissible tensile, shearing and crushing stresses respectively)

    • Options
    • A. (p - 2d)t x ?c
    • B. (p - d)t x ?
    • C. (p - d)t x ?t
    • D. (2p - d)t x ?t
      • Discuss
    • 9. When a thin cvlindrical shell is subjected to an internal pressure, the volumetric strain is (where ?1 = Hoop strain, and ?2 = Longitudinal strain)

    • Options
    • A. 2?1 - ?2
    • B. 2?1 + ?2
    • C. 2?2 - ?1
    • D. 2?2 + ?1
      • Discuss
    • 10. A beam which is fixed at one end and free at the other is called

    • Options
    • A. simply supported beam
    • B. fixed beam
    • C. overhanging beam
    • D. cantilever beam
      • Discuss

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