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Green sand mould indicates that

A. Polymeric mould has been cured

B. Mould has been totally dried

C. Mould is green in colour

D. Mould contains moisture

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  3. Lathe bed is made of
  4. Side relief angle of a single point tool is the angle
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  6. For harder alloy steel, the point angle of the drill is kept
  7. The carbide tools operating at very low cutting speeds (below 30 m/min)
  8. A lead-screw with half nuts in a lathe, free to rotate in both directions has
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  14. The usual value of the helix angle of a drill is
  15. High speed steel tools retain their hardness upto a temperature of
  16. The purpose of jigs and fixtures is to
  17. In up-cut milling the work piece is fed
  18. What is the welding defect caused due to improper control and poor removal of slog between passes called?
  19. When the tool moves parallel to the lathe axis, the movement is termed as
  20. Surface grinding is done to produce
  21. Broaching is applied for machining
  22. Glazing in grinding wheels __________ cutting capacity.
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  24. The work or surface speed for cylindrical grinding varies from
  25. The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called
  26. Low helix angle drills are preferred for drilling holes in
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  28. The method of centre less grinding used to produce taper is
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