What is the name of the device used in arc welding circuits for the purpose of modifying the rate of current change when the weld road is varied rapidly?

A. Reactor

B. Kerf

C. Inductor

D. Cone

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  1. The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.
  2. In metal machining, the zone where the maximum heat is generated due to the plastic deformation of metal,…
  3. The enlarging of an existing circular hole with a rotating single point tool is called
  4. The chuck preferred for quick setting and accurate centering of a job is
  5. A fixture is defined as a device which
  6. The angle between the shear plane and __________ is called shear angle.
  7. In an interchangeable assembly, shafts of size 25.000 -0.0100⁺⁰⁰⁴⁰…
  8. In order to have interference fit, it is essential that the lower limit of the shaft should be
  9. In drilling operation, the metal is removed by
  10. In which of the following milling machine, the table can be tilted in a vertical plane by providing…
  11. Larger than 15° side cutting edge angle
  12. Ceramic tools are fixed to tool body by
  13. Which type of motor is not used in axis or spindle drives of CNC machine tools?
  14. The tool life in case of a grinding wheel is the time
  15. The different spindle speeds on a lathe form
  16. The tool may fail due to
  17. Which of the following statement is correct for orthogonal cutting system?
  18. A mandrel is used to hold
  19. In drilling aluminium, a drill with
  20. In plunge grinding
  21. Which of the following operations can be performed with milling cutters?
  22. The cutting speed for counter-boring should be _________ that of drilling operation.
  23. It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece.…
  24. For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
  25. A coarse grained grinding wheel is used to grind
  26. In gear hobbing
  27. The abrasive slurry used in ultrasonic machining contains fine particles of
  28. Which of the following statement is correct about hot machining?
  29. While cutting helical gears on a non-differential gear hobber, the feed change gear ratio is
  30. In grinding irregular, curved, tapered, convex and concave surfaces, the grinder used is