An open structure of a grinding wheel is used for

A. Soft materials

B. Tough materials

C. Ductile materials

D. All of these

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  1. For turning internal tapers, the suitable method is
  2. It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece.…
  3. A dynamometer is a device used for the measurement of
  4. Green sand mould indicates that
  5. A broach has
  6. The type of reamer used for reaming soft aluminium or copper, is
  7. Small nose radius
  8. A CNC vertical milling machine has to cut a straight slot of 10 mm width and 2mm depth by a cutter of…
  9. The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting…
  10. An open structure of a grinding wheel is used for
  11. During normalizing process of steel, the specimen is heated
  12. If the helix angle of the drill is made _________ 30°, then the torque required to drive the drill…
  13. When the end of a tap is tapered for about three or four threads, it is known as a
  14. A jig is defined as a device which
  15. The lathe spindles are usually made hollow and provided with
  16. In electro discharge machining, tool is made of
  17. In metal machining, the work-tool contact zone is a zone where heat is generated due to
  18. A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies to…
  19. In centreless grinding, the surface speed of regulating wheel is
  20. The process of improving the cutting action of the grinding wheel is called
  21. The tool life is said to be over if
  22. For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is
  23. A dense structure of a grinding wheel is used for
  24. In _________ operation, the chip thickness is minimum at the beginning of the cut and it reaches to…
  25. Larger end cutting edge angle _________ tool life.
  26. An operation of embossing a diamond shaped pattern on the surface of a workpiece, is known as
  27. A 15 mm drilling machine means that it can drill a hole
  28. A grinding wheel is said to be of _________ if the abrasive grains can be easily dislodged.
  29. A fixture is defined as a device which
  30. The type of tool used on milling machine and broaching machine is