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Home ‣ Mechanical Engineering ‣ Strength of Materials Comments
  • Question

  • The thermal stress __________ upon the cross-sectional area of the bar.


  • Options
  • A. depends
  • B. does not depend

  • Correct Answer
  • does not depend 

    • Strength of Materials problems

    Search Results

    • 1. When a rectangular bar of length l, breadth b and thickness t is subjected to an axial pull of P, then linear strain (?) is given by (where E = Modulus of elasticity)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 2. Two closely-coiled helical springs 'A' and 'B' of the same matenal, same number of turns and made from same wire are subjected to an axial load W. The mean diameter of spring 'A' is double the mean diameter of spring 'B'. The ratio of deflections in spring 'B' to spring 'A' will be

    • Options
    • A. 1/8
    • B. 1/4
    • C. 2
    • D. 4
      • Discuss
    • 3. If the section modulus of a beam is increased, the bending stress in the beam will

    • Options
    • A. not change
    • B. increase
    • C. decrease
      • Discuss
    • 4. The torque transmitted by a hollow shaft of outer diameter (D) and inner diameter (d) is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. The bending moment diagram for 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 a parabolic curve.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 6. For the beam shown in the below figure, the shear force diagram between A and B is

    • Options
    • A. a horizontal line
    • B. a vertical line
    • C. an inclined line
    • D. a parabolic curve
      • Discuss
    • 7. The line of intersection of the neutral layer with any normal cross-section of the beam is called neutral axis.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. When a body is subjected to a direct tensile stress (?), the maximum normal stress is equal to the direct tensile stress.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 9. The strength of the un-riveted or solid plate per pitch length is

    • Options
    • A. d.t.?c
    • B. p.t.?t
    • C. (p - d)t.?t
    • D. ?/2 x d2 x ?
      • Discuss
    • 10. A column that fails due to direct stress, is called

    • Options
    • A. short column
    • B. long column
    • C. weak column
    • D. medium column
      • Discuss

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