In ultrasonic machining, tool is made of

A. Tungsten carbide

B. Brass or copper

C. Diamond

D. Stainless steel

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  1. The cutting tool in a milling machine is mounted on
  2. Which of the following engineering materials is the most suitable candidate for hot chamber die casting?
  3. The shear velocity is the velocity of
  4. The method of grinding used to produce a straight or tapered surface on a workpiece, is
  5. The correct sequence of tool materials in increasing order of their ability to retain their hot hardness…
  6. Gears can be best produced on mass production by
  7. The ratio between two consecutive spindle speeds for a six-speed drilling machine using drills of diameter…
  8. What is the welding defect caused due to improper control and poor removal of slog between passes called?
  9. In centreless grinders, the regulating wheel is inclined at
  10. The mechanism of material removal in EDM process is
  11. Which of the following statement is wrong as regard to down milling?
  12. In which type of welding a gas shield, a consumable electrode is used and the welding can be done in…
  13. The point angle of a drill, for drilling stainless steel, is
  14. Relief angles on high speed steel tools usually vary from
  15. While current is shut down in the welding circuit, what kind of voltage exists between the output terminals…
  16. It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece.…
  17. In hot machining, the work is heated by
  18. In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth…
  19. Which of the following statement is correct as regard to up milling?
  20. The angle formed by the leading edge of the land with a plane having the axis of the drill, is called
  21. Chemical milling operation is performed
  22. Surface grinding is done to produce
  23. In an interchangeable assembly, shafts of size 25.000 -0.0100⁺⁰⁰⁴⁰…
  24. In up-cut milling the work piece is fed
  25. In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent…
  26. Threading is an operation of
  27. The cutting speed of a drill depends upon the
  28. Internal or external threads of different pitches can be produced by
  29. Match the items of List-I (Equipment) with the items of List-II (Process) and select the correct answer…
  30. The method of grinding used to produce internal cylindrical holes and tapers, is