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Which of the following statement is correct about hot machining?

A. It requires less power than machining metals at room temperature.

B. The rate of tool wear is lower.

C. It is used for machining high strength and high temperature resistant materials.

D. All of the above

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  2. Gear burnishing is a process for
  3. For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature…
  4. In a gating system, the ratio 1: 2: 4 represents
  5. The negative rake is usually provided on
  6. The method of centre less grinding used to produce taper is
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  8. Chip breakers are used to
  9. The increase in depth of cut and feed rate __________ surface finish.
  10. High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
  11. The height of each tooth of a broach is
  12. Which of the following parameters influence the axial feed rate in centerless grinding?
  13. Crater wear is predominant in
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  15. The chamfering is an operation of
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  17. Drilling is an example of
  18. The cutting speed is maximum while machining __________ with a high speed steel tool.
  19. Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance…
  20. The swing diameter over the bed is ________ the height of the centre measured from the bed of the lathe.
  21. The chuck used for setting up of heavy and irregular shaped work should be
  22. What is the type of joining process called, where the parts to be welded are kept in contact and rotated…
  23. The factor responsible for the formation of discontinuous chips is
  24. Green sand mould indicates that
  25. The helix angle of a drill is __________ for drilling brass.
  26. The cutting tool in a milling machine is mounted on
  27. The correct sequence of tool materials in increasing order of their ability to retain their hot hardness…
  28. A feed gear box for a screw cutting lathe is designed on the basis of
  29. The broaching operation in which either the work or the tool moves across the other, is known as
  30. The top and sides of the table of a shaper usually have