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  • Question
  • Gear lapping is an operation


  • Options
  • A. after heat treatment
  • B. prior to heat treatment
  • C. for gear reconditioning
  • D. none of these

  • Correct Answer
  • after heat treatment 


  • Production Engineering problems


    Search Results


    • 1. 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
    • 2. Cast iron during machining produces

    • Options
    • A. continuous chips
    • B. discontinuous chips
    • C. continuous chips with built-up-edge
    • D. none of these
    • Discuss
    • 3. A twist drill is a

    • Options
    • A. side cutting tool
    • B. front cutting tool
    • C. end cutting tool
    • D. none of these
    • Discuss
    • 4. 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
    • 5. 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
    • 6. In orthogonal cutting system, the maximum chip thickness occurs at the middle.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 7. 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
    • 8. Cemented carbide tool tips are produced by powder metallurgy.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. The rake angle required to machine brass by high speed steel tool is

    • Options
    • A. 0°
    • B. 10°
    • C. 20°
    • D. -10°
    • Discuss
    • 10. 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


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