When the metal is removed by erosion caused by rapidly recurring spark discharges between the tool and work, the process is known as

A. Electrochemical machining

B. Electro-discharge machining

C. Ultrasonic machining

D. None of these

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  1. The floating position of the holding fixture in a rotary transfer device is used to
  2. Friction at the tool-chip interface can be reduced by
  3. The surface finish is improved by the increase in
  4. The height of each tooth of a broach is
  5. Cold working of steel is defined as working
  6. Stellite preserves hardness upto a temperature of
  7. The material which on machining produces chips with built up edge is
  8. Gears can be best produced on mass production by
  9. In order to have interference fit, it is essential that the lower limit of the shaft should be
  10. Discontinuous chips are formed during machining of
  11. As tool and work are not in contact in EDM process
  12. The rake angle required to machine brass by high speed steel tool is
  13. A taper tap has
  14. The depth of cut in drilling is __________ the drill diameter.
  15. The chamfering is an operation of
  16. If a particular Fe-C alloy contains less than 0.83% carbon, it is called
  17. In gear hobbing
  18. The binding material used in cemented carbide tools is
  19. When the shear angle is large
  20. High speed steel tools retain their hardness upto a temperature of
  21. A process of removing metal by pushing or pulling a cutting tool is called
  22. Larger end cutting edge angle _________ tool life.
  23. The relation between the tool life (T) in minutes and cutting speed (V) in m/min is (where n = An exponent,…
  24. In order to prevent tool from rubbing the work _________ on tools are provided.
  25. For generating a Coons surface we require
  26. The advantage of a broaching operation is that
  27. The lathe spindles are usually made hollow and provided with
  28. In centre less grinders, the maximum angular adjustment of the regulating wheel is
  29. In oblique cutting of metals, the cutting edge of the tool is
  30. A twist drill is a