For softer materials, the point angle of the drill is kept

A. Equal to 118°

B. Less than 118°

C. More than 118°

D. Any one of these

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  1. The structure of a grinding wheel depends upon
  2. With the same tool life, the maximum material per minute is removed by
  3. What type of fusion welding process is used for welding sheet metals of all engineering metals (except…
  4. The helix angle of a drill is __________ for drilling brass.
  5. Surface grinding is done to produce
  6. In lapping operation, the amount of metal removed is
  7. In a shaper, the length of stroke is increased by
  8. The maximum possible draft in cold rolling of sheet increases with the
  9. The type of reamer used for reaming operation in a blind hole, is
  10. Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance…
  11. What is the type of welding defect caused due to poor deposition of weld rod is called?
  12. The point angle of a drill, for drilling stainless steel, is
  13. Which of the following statement is correct for oblique cutting system?
  14. In a particular type of welding, flux is prepared in the form of a coarse powder and granulated flux…
  15. What is the type of welding defect caused due to poor manipulation of weld rod or a dirty joint called?
  16. Allowance in limits and fits refers to
  17. The cutting speed for drilling __________ with high speed steel drills is 24 to 45 m/min.
  18. The stroke of a shaping machine is 250 mm. It makes 30 double strokes per minute. The overall average…
  19. As the cutting speed increases, the tool cutting forces
  20. The crystal structure of austenite is
  21. Jigs are used
  22. Hard and tough materials like cast iron should be turned at
  23. The usual value of the helix angle of a drill is
  24. The angle between the shear plane and __________ is called shear angle.
  25. The lip angle of a single point tool is usually
  26. Which of the following statement is wrong as regard to down milling?
  27. Shrinkage allowance on pattern is provided to compensate for shrinkage when
  28. Crack in grinding wheel is developed due to
  29. The tail stock set over method of taper turning is preferred for
  30. The vector sum of cutting velocity and chip velocity is __________ shear velocity.