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Mechanical Engineering :: Engineering Mechanics

  1. The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is

  2. A.

    sin θ

    B.

    cos θ

    C.
    tan θ
    D.
    cosec θ

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  3. The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection.

  4. A.

    less than

    B.

    more than

    C.

    equal to

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  5. The angle of inclination of a vehicle when moving along a circular path __________ upon its mass.

  6. A.

    depends

    B.

    does not depend

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  7. A body of weight W is required to move up on rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by(where μ = tanφ = Coefficient of friction between the plane and the body.)

  8. A.

    P = W tanα

    B.

    P = W tan(α + φ)

    C.

    P = W (sinα + μcosα)

    D.

    P = W (cosα + μsinα)

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  9. If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

  10. A.

    30°

    B.

    60°

    C.

    90°

    D.

    120°

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