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Mechanical Engineering :: Machine Design

Machine Design - Section 1
Machine Design - Section 2
Machine Design - Section 3
Machine Design - Section 4
Machine Design - Section 5
Machine Design - Section 6
Machine Design - Section 7
Machine Design - Section 8

  1. Two concentric helical springs used to provide greater spring force are wound is opposite direction.

    2. A.

    True
    B.

    False

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  2. If the centre distance of the mating gears having involute teeth is increased, then the pressure angle

    3. A.

    increases
    B.

    decreases
    C.

    remains unchanged

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  3. In cylindrical cams, the follower moves

    4. A.

    in a direction perpendicular to the cam axis
    B.

    in a direction parallel to the cam axis
    C.

    in any direction irrespective of cam axis
    D.

    along the cam axis

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  4. The included angle for the acme thread is 29°.

    5. A.

    True
    B.

    False

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  5. The process extensively used for making bolts and nuts is

    6. A.

    hot piercing
    B.

    extrusion
    C.

    cold peening
    D.

    cold heading

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