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Mechanical Engineering :: Engineering Mechanics

Engineering Mechanics - Section 1
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Engineering Mechanics - Section 3
Engineering Mechanics - Section 4
Engineering Mechanics - Section 5
Engineering Mechanics - Section 6
Engineering Mechanics - Section 7

  1. The centre of gravity a T-section 100 mm x 150 mm x 50 mm from its bottom is

    2. A.

    50mm
    B.

    75mm
    C.

    87.5mm
    D.

    125mm

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  2. In order to completely specify angular displacement by a vector, it must fix

    3. A.

    direction of the axis of rotation
    B.

    magnitude of angular displacement
    C.

    sense of angular displacement
    D.

    all of these

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  3. Which of the following statement is correct in connection with projectiles?

    4. A.

    A path, traced by a projectile in the space, is known as trajectory.
    B.

    The velocity with which a projectile is projected, is known as the velocity of projection.
    C.

    The angle, with the horizontal, at which a projectile is projected is known as angle of projection.
    D.

    all of the above

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  4. The acceleration of a body sliding down an inclined surface is

    5. A.

    g sin θ
    B.

    g cos θ
    C.

    g tan θ
    D.

    none of these

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  5. If a body is acted upon by a number of coplaner non-concurrent forces, it may

    6. A.

    rotate about itself without moving
    B.

    move in any one direction rotating about itself
    C.

    be completely at rest
    D.

    all of these

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