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  • Question
  • Cast iron during machining produces


  • Options
  • A. continuous chips
  • B. discontinuous chips
  • C. continuous chips with built-up-edge
  • D. none of these

  • Correct Answer
  • discontinuous chips 


  • Production Engineering problems


    Search Results


    • 1. A twist drill is a

    • Options
    • A. side cutting tool
    • B. front cutting tool
    • C. end cutting tool
    • D. none of these
    • Discuss
    • 2. Grinding wheels should be tested for balance

    • Options
    • A. only at the time of manufacture
    • B. before starting the grinding operation
    • C. at the end of grinding operation
    • D. occasionally
    • Discuss
    • 3. Lapping is an operation of

    • Options
    • A. making a cone-shaped enlargement of the end of a hole
    • B. smoothing and squaring the surface around a hole
    • C. sizing and finishing a small diameter hole
    • D. producing a hole by removing metal along the circumference of a hollow cutting tool
    • Discuss
    • 4. Crater wear occurs mainly on the

    • Options
    • A. nose part, front relief face and side relief face of the cutting tool
    • B. face of the cutting tool at a short distance from the cutting edge only
    • C. cutting edge only
    • D. front face only
    • Discuss
    • 5. In order to prevent tool from rubbing the work __________ on tools are provided.

    • Options
    • A. rake angles
    • B. relief angles
    • Discuss
    • 6. In ultra-sonic machining, the metal is removed by

    • Options
    • A. using abrasive slurry between the tool and work
    • B. direct contact of tool with the work
    • C. maintaining an electrolyte between the work and tool in a very small gap between the two
    • D. erosion caused by rapidly recurring spark discharges between the tool and work
    • Discuss
    • 7. Gear lapping is an operation

    • Options
    • A. after heat treatment
    • B. prior to heat treatment
    • C. for gear reconditioning
    • D. none of these
    • Discuss
    • 8. In orthogonal cutting system, the maximum chip thickness occurs at the middle.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 9. 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
    • 10. Cemented carbide tool tips are produced by powder metallurgy.

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


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