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It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece. Which of the following machine will be used?

A. Sensitive drilling machine

B. Radial drilling machine

C. Gang drilling machine

D. Multiple spindle drilling machine

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  1. The in-feed grinding is used to
  2. When the cutting edge of the tool is dull, then during machining
  3. Which of the following statement is wrong about ultrasonic machining?
  4. A 15 mm drilling machine means that it can drill a hole
  5. Drilling is an example of
  6. The hard grade grinding wheels are denoted by the letters
  7. In an orthogonal cutting, the depth of cut is halved and the feed rate is double. If the chip thickness…
  8. Hard and tough materials like cast iron should be turned at
  9. The increase in depth of cut and feed rate __________ surface finish.
  10. The size of abrasive grain required in a grinding wheel depends upon the
  11. Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance…
  12. In centreless grinding, the surface speed of regulating wheel is
  13. Which of the following statement is wrong?
  14. The work or surface speed for cylindrical grinding varies from
  15. The cutting force in punching and blanking operations mainly depends on
  16. When two main plates are kept in alignment butting each other and riveted with cover plate on both sides…
  17. The rear teeth of a broach
  18. The lead screw of a lathe has _________ threads.
  19. The rake angle required to machine brass by high speed steel tool is
  20. In oblique cutting of metals, the cutting edge of the tool is
  21. The usual value of the point angle of a drill is
  22. Lapping is an operation of
  23. If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch…
  24. A drill considered as a cutting tool having zero rake, is known as a
  25. In order to have interference fit, it is essential that the lower limit of the shaft should be
  26. The helix angle of a drill is __________ for drilling brass.
  27. A better machinable metal is one which gives
  28. A single point tool has
  29. The angle made by the face of the tool and the plane parallel to the base of cutting tool is called
  30. The method of grinding used to produce a straight or tapered surface on a workpiece, is