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Mechanical Engineering :: Manufacturing and Production Technology

Manufacturing and Production Technology - section-1
  1. The top and sides of the table of a shaper usually have

    2. A.

     L-type slots
    B.

     T-type slots
    C.

     I-type slots
    D.

     Any one of these

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  2. When the shear angle is small

    3. A.

     Path of shear is short and chip is thin
    B.

     Path of shear is large and chip is thick
    C.

     Path of shear is short and chip is thick
    D.

     Path of shear is large and chip is thin

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  3. In metal cutting operations, the shear angle is the angle made by the shear plane with the

    4. A.

     Direction of the tool axis
    B.

     Direction of tool travel
    C.

     Perpendicular to the direction of the tool axis
    D.

     Central plane of the workpiece

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  4. When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining, the number of degrees of freedom that are restricted is

    5. A.

     7
    B.

     8
    C.

     9
    D.

     10

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  5. A jig is defined as a device which

    6. A.

     Holds and locates a workpiece and guides and controls one or more cutting tools
    B.

     Holds and locates a workpiece during an inspection or for a manufacturing operation
    C.

     Is used to check the accuracy of workpiece
    D.

     All of the above

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  6. A fixture is defined as a device which

    7. A.

     Holds and locates a workpiece and guides and controls one or more cutting tools
    B.

     Holds and locates a workpiece during an inspection or for a manufacturing operation
    C.

     Is used to check the accuracy of workpiece
    D.

     All of the above

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  7. Which of the following statement is wrong about ultrasonic machining?

    8. A.

     It is best suited for machining hard and brittle materials.
    B.

     It cuts materials at very slow speeds
    C.

     It removes large amount of material
    D.

     It produces good surface finish

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  8. Gears can be best produced on mass production by

    9. A.

     Shaping
    B.

     Casting
    C.

     Forming
    D.

     Hobbing

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  9. In drilling brass, a drill with

    10. A.

     Zero helix angle is used
    B.

     Low helix angle is used
    C.

     High helix angle is used
    D.

     Any helix angle can be used

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  10. Which of the following statement is wrong?

    11. A.

     The larger side rake angle produces chipping
    B.

     The smaller rake angle produces excessive wear and deformation in tool
    C.

     The increase in nose radius decreases tool life
    D.

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