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Mechanical Engineering :: Production Engineering

Production Engineering - Section 1
Production Engineering - Section 2
Production Engineering - Section 3
Production Engineering - Section 4
Production Engineering - Section 5
Production Engineering - Section 6
Production Engineering - Section 7
Production Engineering - Section 8

  1. The example of snag grinding is

    2. A.
    trimming the surface left by sprues and risers on castings
    B.
    grinding the parting line left on castings
    C.
    removing flash on forgings
    D.
    all of these

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  2. The angle between the shear plane and __________ is called shear angle.

    3. A.
    work surface
    B.
    tool face

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  3. In machining soft materials, a tool with negative relief angle is used.

    4. A.
    Correct
    B.
    Incorrect

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  4. Which of the following parameters influence the axial feed rate in centreless grinding?

    5. A.
    Regulating wheel diameter
    B.
    Speed of the regulating wheel
    C.
    Angle between the axes of grinding and regulating wheels
    D.
    all of the above

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  5. The lathe spindles are usually made hollow and provided with

    6. A.
    internal taper
    B.
    external taper
    C.
    internal and external taper
    D.
    no taper

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  6. The top and sides of the table of a shaper usually have

    7. A.
    L-type slots
    B.
    T-type slots
    C.
    I-type slots
    D.
    any one of these

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  7. The binding material used in cemented carbide tools is

    8. A.
    tungsten
    B.
    chromium
    C.
    silicon
    D.
    cobalt

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  8. In machining metals, chips break due to __________ of work material.

    9. A.
    toughness
    B.
    ductility
    C.
    elasticity
    D.
    work hardening

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  9. For softer materials, the point angle of the drill is kept

    10. A.
    equal to 118°
    B.
    less than 118°
    C.
    more than 118°
    D.
    any one of these

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  10. When the backgear is engaged in a backgeared headstock, the spindle speed reduces considerably.

    11. A.
    Agree
    B.
    Disagree

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