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Mechanical Engineering :: Strength of Materials

  1. For the two shafts connected in parallel and subjected to twisting moment, the angle of twist of each shaft will be same.

  2. A.
    Yes
    B.
    No

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  3. For a shaft, the shear stress at a point is __________ the distance from the axis of the shaft.

  4. A.
    equal to
    B.
    directly proportional to
    C.
    inversely proportional to

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  5. A spring used to absorb shocks and vibrations is

  6. A.
    conical spring
    B.
    torsion spring
    C.
    leaf spring
    D.
    disc spring

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  7. The shear stress at the centre of a circular shaft under torsion is

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

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  9. At the neutral axis of a beam, the shear stress is

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

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  11. In a leaf spring, the deflection at the centre is

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  13. The actual neutral axis of a reinforced cement concrete beam is based on the principle that the moment of areas of compression and tension zones at the neutral axis are equal.

  14. A.
    Agree
    B.
    Disagree

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  15. A cantilever beam is one which is

  16. A.
    fixed at both ends
    B.
    fixed at one end and free at the other end
    C.
    supported at its ends
    D.
    supported on more than two supports

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  17. The neutral axis of a transverse section of a beam passes through the centre of gravity of the section and is

  18. A.
    in the vertical plane
    B.
    in the horizontal plane
    C.
    in the same plane in which the beam bends
    D.
    at right angle to the plane in which the beam bends

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  19. A pressure vessel is said to be a thick shell, when

  20. A.
    it is made of thick sheets
    B.
    the internal pressure is very high
    C.
    the ratio of wall thickness of the vessel to its diameter is less than 1/10.
    D.
    the ratio of wall thickness of the vessel to its diameter is greater than 1/10.

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