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Mechanical Engineering :: Machine Design

  1. The size of a cam depends upon

  2. A.

    base circle

    B.

    pitch circle

    C.

    prime circle

    D.

    pitch curve

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  3. The velocity factor for very accurately cut and ground metallic gears operating at velocities upto __________ is equal to 6/6 + v.

  4. A.

    10 m/s

    B.

    12.5 m/s

    C.

    15 m/s

    D.

    20 m/s

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  5. The power transmitted by means of a belt depends upon

  6. A.

    velocity of the belt

    B.

    tension under which the belt is placed on the pulleys

    C.

    arc of contact between the belt and the smaller pulley

    D.

    all of the above

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  7. In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to

  8. A.

    reduce vibration

    B.

    reduce slip

    C.

    ensure uniform loadingensure proper alignment

    D.

    ensure proper alignment

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  9. A steel containing 0.8% carbon is known as

  10. A.

    eutectoid steel

    B.

    hyper-eutectoid steel

    C.

    hypo-eutectqid steel

    D.

    none of these

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