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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. The toughness of a material __________ when it is heated.

    2. A.

    increases
    B.

    decreases
    C.

    does not change

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  2. The number of slots in a 25 mm castle nut is

    3. A.

    2
    B.

    4
    C.

    6
    D.

    8

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  3. A screw is said to be over hauling screw, if its efficiency is

    4. A.

    less than 50%
    B.

    more than 50%
    C.

    equal to 50%
    D.

    a pair of tongs

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  4. The application of third type levers is found in

    5. A.

    handle of a hand pump
    B.

    hand wheel of a punching press
    C.

    lever of a loaded safety valve
    D.

    a pair of tongs

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  5. For unequal width of butt straps, the thickness of butt straps are

    6. A.

    0.75 t for wide strap on the inside and 0.625 t for narrow strap on the outside
    B.

    0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside
    C.

    0.75 t for both the straps on the inside and outside
    D.

    0.625 t for both the straps on the inside and outside

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