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Mechanical Engineering :: Manufacturing and Production Technology

Manufacturing and Production Technology - section-1
  1. The facing is an operation of

    2. A.

     Beveling the extreme end of a workpiece
    B.

     Embossing a diamond shaped pattern on the surface of a workpiece
    C.

     Reducing the diameter of a workpiece over a very narrow surface
    D.

     Machining the ends of a workpiece to produce a flat surface square with the axis

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  2. Threading is an operation of

    3. A.

     Smoothing and squaring the surface around a hole
    B.

     Sizing and finishing a small diameter hole
    C.

     Producing a hole by removing metal along the circumference of a hollow cutting tool
    D.

     Cutting helical grooves on the external cylindrical surface

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  3. Quality screw threads are produced by

    4. A.

     Thread milling
    B.

     Thread chasing
    C.

     Thread cutting with single point tool
    D.

     Thread casting

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  4. Ultrasonic machining is best suited for

    5. A.

     Tool steels
    B.

     Sintered carbides
    C.

     Glass
    D.

     All of these

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  5. Which of the following parameters govern the value of shear angle in continuous chip formation?

    6. A.

     True feed
    B.

     Chip thickness
    C.

     Rake angle of the cutting tool
    D.

     All of these

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  6. Surface grinding is done to produce

    7. A.

     Tapered surface
    B.

     Flat surface
    C.

     Internal cylindrical holes
    D.

     All of these

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  7. The percentage of carbon in gray cast iron is in the range of

    8. A.

     0.25 to 0.75 percent
    B.

     1.25 to 1.75 percent
    C.

     3 to 4 percent
    D.

     8 to 10 percent

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  8. Tool life is measured by the

    9. A.

     Number of pieces machined between tool sharpenings
    B.

     Time the tool is in contact with the job
    C.

     Volume of material removed between tool sharpenings
    D.

     All of the above

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  9. The different spindle speeds on a lathe form

    10. A.

     Arithmetical progression
    B.

     Geometrical progression
    C.

     Harmonical progression
    D.

     Any one of these

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  10. A better machinable metal is one which gives

    11. A.

     Lower chip-tool contact area and larger shear angle
    B.

     Higher chip-tool contact area and smaller shear angle
    C.

     Lower chip-tool contact area and smaller shear angle
    D.

     Higher chip-tool contact area and larger shear angle

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