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Lapping is an operation of

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

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  1. In Oxyacetylene gas welding, temperature at the inner cone of the flame is around
  2. If the cutting speed is increased, then the built-up-edge
  3. When the cutting edge of the tool is dull, then during machining
  4. Lathe bed is made of
  5. In a metal arc welding process, a gas metal arc welding with magnetized flux is used and can be done…
  6. In a single point tool, the angle between the surface of the flank immediately below the point and a…
  7. For generating a Coons surface we require
  8. The vector sum of cutting velocity and chip velocity is __________ shear velocity.
  9. In a particular type of welding, flux is prepared in the form of a coarse powder and granulated flux…
  10. For harder alloy steel, the point angle of the drill is kept
  11. The chuck used for setting up of heavy and irregular shaped work should be
  12. The maximum production of small and slender parts is done by
  13. Which one of the following is a solid state joining process?
  14. High speed steel drills can be operated at about _________ the speed of high carbon steel drills.
  15. Which of the following statement is correct about nose radius?
  16. As the cutting speed increases, the tool cutting forces
  17. In lapping operation, the amount of metal removed is
  18. In an interchangeable assembly, shafts of size 25.000 -0.0100⁺⁰⁰⁴⁰…
  19. EDM machining is applied for
  20. Glazing in grinding wheels takes place when the
  21. Internal or external threads of different pitches can be produced by
  22. In electrochemical machining, the gap between the tool and work is kept as
  23. Hard and tough materials like cast iron should be turned at
  24. Ultrasonic machining is best suited for
  25. A twist drill is a
  26. Down milling is also called
  27. The height of each tooth of a broach is
  28. In down milling, the thickness of chip is
  29. The tool life is affected by
  30. In ultrasonic machining, the metal is removed by