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Mechanical Engineering :: Engineering Mechanics

  1. The impact between two lead spheres is approximately equal to an __________ impact.

  2. A.

    elastic

    B.

    inelastic

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  3. Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is __________ than that passing through its C.G. and parallel to the base.

  4. A.

    nine times

    B.

    six times

    C.

    four times

    D.

    two times

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  5. If a body is thrown upwards, then the gravitational acceleration is taken as zero.

  6. A.

    Correct

    B.

    Incorrect

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  7. An ideal machine is one whose efficiency is

  8. A.

    between 60 and 70 %

    B.

    between 70 and 80%

    C.

    between 80 and 90%

    D.

    100%

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  9. The energy possessed by a body, for doing work by virtue of its position, is called

  10. A.

    potential energy

    B.

    kinetic energy

    C.

    electrical energy

    D.

    chemical energy

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