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Machine Design - Mechanical Engineering Questions and Answers
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Mechanical Engineering :: Machine Design

  1. The rolling contact bearings are known as

  2. A.

    thick lubricated bearings

    B.

    plastic bearings

    C.

    thin lubricated bearings

    D.

    antifriction bearings

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  3. The backlash for spur gears depends upon

  4. A.

    module

    B.

    pitch line velocity

    C.

    tooth profile

    D.

    both (a) and (b)

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  5. The size of a gear is usually specified by

  6. A.

    pressure angle

    B.

    pitch circle diameter

    C.

    circular pitch

    D.

    diametral pitch

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  7. The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are εc and εl respectively. The change in volume of the boiler cylinder per unit volume will be

  8. A.

    εc + 2εl

    B.

    c + εl

    C.

    εc + εl2

    D.

    εc2 + εl

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  9. The bearings of heavy series have capacity __________ over the medium series.

  10. A.

    10 to 20%

    B.

    20 to 30%

    C.

    30 to 40%

    D.

    40 to 50%

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