logo

CuriousTab

CuriousTab

Discussion


Home Mechanical Engineering Production Engineering Comments

  • Question
  • 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

  • Correct Answer
  • sizing and finishing a small diameter hole 


  • Production Engineering problems


    Search Results


    • 1. 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
    • 2. In order to prevent tool from rubbing the work __________ on tools are provided.

    • Options
    • A. rake angles
    • B. relief angles
    • Discuss
    • 3. Which of the following statement is incorrect with reference of lathe cutting tools?

    • Options
    • A. The flank of the tool is the surface or surfaces below and adjacent to the cutting edges
    • B. The nose is the corner, arc or chamfer joining the side cutting and the end cutting edges
    • C. The heel is that part of the tool which is shaped to produce the cutting edges and face
    • D. The base is that surface of the shank which bears against the support and takes tangent pressure of the cut
    • Discuss
    • 4. A fine grained grinding wheel is used to grind hard materials.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 5. If the diameter of the hole is subject to considerable variation, then for locating in jigs and fixtures, the pressure type of locator used is

    • Options
    • A. conical locator
    • B. cylindrical locator
    • C. diamond pin locator
    • D. vee locator
    • Discuss
    • 6. 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
    • 7. A twist drill is a

    • Options
    • A. side cutting tool
    • B. front cutting tool
    • C. end cutting tool
    • D. none of these
    • Discuss
    • 8. Cast iron during machining produces

    • Options
    • A. continuous chips
    • B. discontinuous chips
    • C. continuous chips with built-up-edge
    • D. none of these
    • Discuss
    • 9. 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
    • 10. Gear lapping is an operation

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


    Comments

    There are no comments.

Enter a new Comment