EDM machining is applied for

A. Shaping carbide dies and punches having complicated profiles

B. Making large number of small holes in sieves and fuel nozzles

C. Embossing and engraving on harder materials

D. All of these

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  1. The cutting speed for drilling aluminium, brass and bronze with high speed steel drills varies from
  2. If the diameter of the hole is subject to considerable variation, then for locating in jigs and fixtures,…
  3. The in-feed grinding is used to
  4. The abrasive slurry used in ultrasonic machining contains fine particles of
  5. The common welding error that occurs due to wrong speed, faulty preparation, and high / low current,…
  6. Ceramic tools are fixed to tool body by
  7. What is the type of welding defect caused due to poor deposition of weld rod is called?
  8. What is the type of welding defect caused due to poor manipulation of weld rod or a dirty joint called?
  9. Chemical milling operation is performed
  10. The negative rake is usually provided on
  11. The chuck used for setting up of heavy and irregular shaped work should be
  12. In a single point tool, the angle between the surface of the flank immediately below the point and a…
  13. In plunge grinding
  14. A mandrel is used to hold
  15. Hardness of green sand mould increases with
  16. Dielectric is used in
  17. Trepanning is an operation of
  18. In _________ operation, the chip thickness is minimum at the beginning of the cut and it reaches to…
  19. The average cutting speed for turning brass with a high speed steel tool is
  20. High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
  21. For generating a Coons surface we require
  22. In a planer
  23. For harder alloy steel, the point angle of the drill is kept
  24. For turning small taper on long workpiece, the suitable method is
  25. The main purpose of a boring operation, as compared to drilling, is to
  26. In oblique cutting system, the maximum chip thickness
  27. The type of tool used on lathe, shaper and planer is
  28. Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the…
  29. An open structure of a grinding wheel is used for
  30. In an orthogonal cutting, the depth of cut is halved and the feed rate is double. If the chip thickness…