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In centreless grinders, the regulating wheel is inclined at

A. 0° to 8°

B. 9° to 15°

C. 16° to 20°

D. 21° to 25°

Correct Answer : A.


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  1. In a shaper
  2. The trade name of a nonferrous cast alloy composed of cobalt, chromium and tungsten is called
  3. The usual value of the helix angle of a drill is
  4. In oblique cutting system, the cutting edge of the tool
  5. Broaching is applied for machining
  6. The cutting speed is maximum while machining __________ with a high speed steel tool.
  7. The abrasive recommended for grinding materials of high tensile strength is
  8. The primary purpose of a sprue in a casting mould is to
  9. The floating position of the holding fixture in a rotary transfer device is used to
  10. When the cutting edge of the tool is dull, then during machining
  11. An operation of embossing a diamond shaped pattern on the surface of a workpiece, is known as
  12. The different spindle speeds on a lathe form
  13. Lapping is an operation of
  14. The structure of a grinding wheel depends upon
  15. In plunge grinding
  16. While cutting helical gears on a non-differential gear hobber, the feed change gear ratio is
  17. The process of changing the shape of grinding wheel as it becomes worn due to breaking away of the abrasive…
  18. For fast removal of materials during grinding, a _________ grinding wheel is used.
  19. The type of reamer used for reaming soft aluminium or copper, is
  20. The operation performed on a shaper is
  21. In an orthogonal cutting, the depth of cut is halved and the feed rate is double. If the chip thickness…
  22. In which of the following machine, the work is usually rotated while the drill is fed into work?
  23. What is the type of welding defect caused due to poor manipulation of weld rod or a dirty joint called?
  24. When two main plates are kept in alignment butting each other and riveted with cover plate on both sides…
  25. A dense structure of a grinding wheel is used for
  26. A taper tap has
  27. The method of grinding used to produce internal cylindrical holes and tapers, is
  28. Trepanning is an operation of
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  30. The usual value of the point angle of a drill is