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The aluminium oxide abrasive is chiefly used for grinding

A. High speed steel

B. Carbon steel

C. Wrought iron

D. All of these

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  1. In which of the following machine, the work remains stationary and the tool is rotated?
  2. The depth of cut in drilling is __________ the drill diameter.
  3. The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called
  4. The main purpose of a boring operation, as compared to drilling, is to
  5. The machining of titanium is difficult due to
  6. Surface grinding is done to produce
  7. Any number of equal divisions can be obtained on milling machine by
  8. During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 ; the type of tool motion…
  9. As tool and work are not in contact in EDM process
  10. For harder alloy steel, the point angle of the drill is kept
  11. Buffing wheels are made of
  12. Calculate the weld per minute, work speed of circular electrode of 220 mm diameter for carrying out…
  13. The negative rake is usually provided on
  14. The angle made by the face of the tool and the plane parallel to the base of cutting tool is called
  15. The operation in which oil is permeated into the pores of a powder metallurgy product is known as
  16. Allowance in limits and fits refers to
  17. In lapping operation, the amount of metal removed is
  18. What is the type of welding defect caused due to shrinkage during solidification and by weld stresses…
  19. The process of removing metal by a cutter which is rotated against the direction of travel of workpiece,…
  20. In Oxyacetylene gas welding, temperature at the inner cone of the flame is around
  21. The surface finish is improved by the increase in
  22. Chemical milling operation is performed
  23. For softer materials, the point angle of the drill is kept
  24. What is the name of the device used in arc welding circuits for the purpose of modifying the rate of…
  25. In hot machining, tool is made of
  26. Grinding wheels should be tested for balance
  27. Trepanning is an operation of
  28. The actual feed in centerless grinders is given by (where d = Dia. of regulating wheel, n = Revolutions…
  29. What is the type of shielding gas for GTAW (Gas Tungsten Arc Welding) used for carbon steels only called?
  30. When 3-2-1 principle is used to support and locate a three dimensional work-piece during machining,…