Shrinkage allowance on pattern is provided to compensate for shrinkage when

A. The temperature of liquid metal drops from pouring to freezing temperature

B. The metal changes from liquid to solid state at freezing temperature

C. The temperature of solid phase drops from freezing to room temperature

D. The temperature of metal drops from pouring to room temperature

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  1. NC contouring is an example of
  2. The broaching operation in which either the work or the tool moves across the other, is known as
  3. The snag grinding is done
  4. Twist drills are made of
  5. In oblique cutting system, the cutting edge of the tool
  6. Shrinkage allowance on pattern is provided to compensate for shrinkage when
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  8. In the relation VTn = C, the value of n for ceramic tools is
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  11. In hot machining, the work is heated by
  12. The method of grinding used to produce internal cylindrical holes and tapers, is
  13. In American Standard Association (A S A) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then…
  14. The angle formed by the leading edge of the land with a plane having the axis of the drill, is called
  15. High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools.
  16. The addition of lead, sulphur and phosphorus to low carbon steels, help to
  17. In an orthogonal cutting, the depth of cut is halved and the feed rate is double. If the chip thickness…
  18. Trepanning is an operation of
  19. Which of the following statement is incorrect with reference of lathe cutting tools?
  20. The tool life in case of a grinding wheel is the time
  21. The soft grade grinding wheels are denoted by the letters
  22. A drill considered as a cutting tool having zero rake, is known as a
  23. The cutting speed is maximum while machining __________ with a high speed steel tool.
  24. The tool life is said to be over if
  25. If the diameter of the hole is subject to considerable variation, then for locating in jigs and fixtures,…
  26. In transverse grinding
  27. Relief angles on high speed steel tools usually vary from
  28. The trade name of a nonferrous cast alloy composed of cobalt, chromium and tungsten is called
  29. The tool made of cemented carbide wear out faster at
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