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Mechanical Engineering :: Strength of Materials

  1. A simply supported beam 'A' of length l, breadth b and depth d carries a central load W. Another beam 'B' of the same dimensions carries a central load equal to 2 W. The deflection of beam 'B' will be __________ as that of beam 'A'.

  2. A.
    one-fourth
    B.
    one-half
    C.
    double
    D.
    four times

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  3. Which of the following statement is correct?

  4. A.
    A continuous beam has only two supports at the ends.
    B.
    A uniformly distributed load spreads uniformly over the whole length of a beam.
    C.
    The bending moment is maximum where shear force is maximum.
    D.
    The maximum bending moment of a simply supported beam of length l with a central point load W is Wl/8.

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  5. In the below figure, the point E represents the maximum stress.

  6. A.
    True
    B.
    False

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  7. The ratio of the largest load in a test to the original cross-sectional area of the test piece is called

  8. A.
    elastic limit
    B.
    yield stress
    C.
    ultimate stress
    D.
    breaking stress

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  9. According to Euler's column theory, the crippling load of a column is given by p = π2 EI/Cl2. In the Euler's formula, the value of C for a column with one end fixed and the other end free, is

  10. A.
    1/2
    B.
    1
    C.
    2
    D.
    4

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  11. Strain is equal to (where l = Original length, and δl = Change in length)

  12. A.
    ll
    B.
    δl/l
    C.
    ll
    D.
    l + δl

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  13. The total strain energy stored in a body is termed as

  14. A.
    resilience
    B.
    proofresilience
    C.
    impact energy
    D.
    modulus of resilience

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  15. Modulus of resilience is the proof resilience per unit volume of a material.

  16. A.
    Correct
    B.
    Incorrect

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  17. In order to avoid sliding of masonry dam, the force of friction between the dam and soil should be at least __________ the total water pressure per metre length.

  18. A.
    equal to
    B.
    1.5 times
    C.
    double
    D.
    2.5 times

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  19. In a beam subjected to pure bending, the intensity of stress in any fibre is __________ the distance of the fibre from the neutral axis.

  20. A.
    equal to
    B.
    less than
    C.
    more than
    D.
    directly proportional to

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