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  • Question
  • When the cutting edge of the tool is dull, then during machining


  • Options
  • A. continuous chips are formed
  • B. discontinuous chips are formed
  • C. continuous chips with built-up edge are formed
  • D. no chips are formed

  • Correct Answer
  • continuous chips with built-up edge are formed 


  • Production Engineering problems


    Search Results


    • 1. Which of the following statement is wrong about ultra-sonic machining?

    • Options
    • 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.
    • Discuss
    • 2. The rake angle required to machine brass by high speed steel tool is

    • Options
    • A. 0°
    • B. 10°
    • C. 20°
    • D. -10°
    • Discuss
    • 3. Cemented carbide tool tips are produced by powder metallurgy.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. The facing is an operation of

    • Options
    • A. bevelling 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
    • Discuss
    • 5. In orthogonal cutting system, the maximum chip thickness occurs at the middle.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 6. The different spindle speeds on a lathe form

    • Options
    • A. arithmetical progression
    • B. geometrical progression
    • C. harmonical progression
    • D. any one of these
    • Discuss
    • 7. A single point thread cutting tool should ideally have

    • Options
    • A. zero rake angle
    • B. positive rake angle
    • C. negative rake angle
    • D. point angle
    • Discuss
    • 8. The angle included between the two lips projected upon a plane parallel to the drill axis and paralled to the two cutting lips, is called helix angle.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 9. The method of grinding used to produce a straight or tapered surface on a workpiece, is

    • Options
    • A. internal cylindrical grinding
    • B. form grinding
    • C. external cylindrical grinding
    • D. surface grinding
    • Discuss
    • 10. Side rake angle on tools is provided to control chip flow.

    • Options
    • A. True
    • B. False
    • Discuss


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