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In drilling brass, a drill with

A. Zero helix angle is used

B. Low helix angle is used

C. High helix angle is used

D. Any helix angle can be used

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  1. The average cutting speed for turning brass with a high speed steel tool is
  2. Hardness of green sand mould increases with
  3. The addition of lead, sulphur and phosphorus to low carbon steels, help to
  4. The maximum possible draft in cold rolling of sheet increases with the
  5. In drilling operation, the metal is removed by
  6. The effective number of lattice points in the unit cell of simple cubic, body centred cubic, and face…
  7. A dynamometer is a device used for the measurement of
  8. Internal gears can be made by
  9. Which of the following arc welding processes does not use consumable electrodes?
  10. A grinding wheel is said to be of _________ if the abrasive grains can be easily dislodged.
  11. In centreless grinders, the regulating wheel is inclined at
  12. Slow speed of the spindle is necessary in
  13. Surface grinding is done to produce
  14. The relation between tool life (T) and cutting speed (V) is VTn = Constant. In this relation, the value…
  15. The cutting speed of a drill depends upon the
  16. A right hand tool on a lathe cuts most efficiently when it travels
  17. A left hand tool on a lathe cuts most efficiently when it travels
  18. In up-cut milling the work piece is fed
  19. Match the items of List-I (Equipment) with the items of List-II (Process) and select the correct answer…
  20. The correct sequence of tool materials in increasing order of their ability to retain their hot hardness…
  21. It is required to cut screw threads of 2 mm pitch on a lathe. The lead screw has a pitch of 6 mm. If…
  22. Misrun is a casting defect which occurs due to
  23. Cold working of steel is defined as working
  24. Quality screw threads are produced by
  25. Which of the following statement is correct about nose radius?
  26. For machining a cast iron workpiece by a high speed steel tool, the average cutting speed is
  27. The relief or clearance at the cutting edge of a flat drill varies from
  28. The maximum production of small and slender parts is done by
  29. Tool life is measured by the
  30. A ring gauge is used to measure