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Mechanical Engineering :: Strength of Materials

  1. The bending stress in a beam is __________ section modulus.

  2. A.
    directly proportional to
    B.
    inversely proportional to

  3. When shear force at a point is zero, then bending moment is __________ at that point.

  4. A.
    zero
    B.
    minimum
    C.
    maximum
    D.
    infinity

  5. The maximum bending moment for the beam shown in the below figure, lies at a distance of __________ from the end B.

  6. A.
    l/2
    B.
    l/3
    C.
    D.

  7. When a bar is cooled to - 5°C, it will develop

  8. A.
    no stress
    B.
    shear stress
    C.
    tensile stress
    D.
    compressive stress

  9. The limit of eccentricity is based upon no tension condition.

  10. A.
    True
    B.
    False

  11. In order to know whether a column is long or short, we must know its slenderness ratio.

  12. A.
    True
    B.
    False

  13. A composite shaft consisting of two stepped portions having spring constants k1 and k2 is held between two rigid supports at the ends. Its equivalent spring constant is

  14. A.
    B.
    C.
    D.
    k1+k2

  15. Resilience is the

  16. A.
    energy stored in a body when strained within elastic limits
    B.
    energy stored in a body when strained upto the breaking of the specimen
    C.
    maximum strain energy which can be stored in a body
    D.
    none of the above

  17. If the depth is kept constant for a beam of uniform strength, then its width will vary in proportional to (where M = Bending moment)

  18. A.
    M
    B.
    M
    C.
    M2
    D.
    M3

  19. A concentrated load is one which

  20. A.
    acts at a point on a beam
    B.
    spreads non-uniformly over the whole length of a beam
    C.
    spreads uniformly over the whole length of a beam
    D.
    varies uniformly over the whole length of a beam