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The mechanism of material removal in EDM process is

A. Melting and Evaporation

B. Melting and Corrosion

C. Erosion and Cavitations

D. Cavitations and Evaporation

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  1. A grinding wheel is said to be of _________ if the abrasive grains can be easily dislodged.
  2. In which of the following machine, the work is usually rotated while the drill is fed into work?
  3. Glazing in grinding wheels __________ cutting capacity.
  4. The chuck used for setting up of heavy and irregular shaped work should be
  5. The grade of grinding wheel depends upon
  6. The cutting speed for counter-boring should be _________ that of drilling operation.
  7. Hard and tough materials like cast iron should be turned at
  8. An expendable pattern is used in
  9. In centre less grinders, the maximum angular adjustment of the regulating wheel is
  10. Internal or external threads of different pitches can be produced by
  11. A fixture is defined as a device which
  12. In an interchangeable assembly, shafts of size 25.000 -0.010⁺⁰⁰⁴⁰…
  13. Jigs are used
  14. Side relief angle of a single point tool is the angle
  15. Buffing wheels are made of
  16. In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth…
  17. The strength of a brazed joint
  18. A single point thread cutting tool should ideally hav
  19. In an orthogonal cutting, the depth of cut is halved and the feed rate is double. If the chip thickness…
  20. Surface grinding is done to produce
  21. Dielectric is used in
  22. A right hand tool on a lathe cuts most efficiently when it travels
  23. The lip clearance angle is the angle formed by the
  24. A grinding wheel becomes glazed (i.e. cutting edge takes a glasslike appearance) due to
  25. The cutting speed is minimum while machining _________ with a high speed steel tool.
  26. Glazing in grinding wheels takes place when the
  27. A tool used to withdraw a drill from the sleeve is called
  28. The object of caulking in a riveted joint is to make the joint
  29. The abrasive recommended for grinding materials of low tensile strength is
  30. While current is shut down in the welding circuit, what kind of voltage exists between the output terminals…