High speed steel tools retain their hardness upto a temperature of

A. 250°C

B. 350°C

C. 500°C

D. 900°C

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  1. In drilling brass, a drill with
  2. In hot machining, tool is made of
  3. A grinding wheel is said to be of _________ if the abrasive grains can be easily dislodged.
  4. Which of the following process is used for preparing parts having large curved surfaces and thin sections?
  5. For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature…
  6. The capacity of a material to be welded under the imposed fabrication conditions into a specific, suitably…
  7. In Oxyacetylene gas welding, temperature at the inner cone of the flame is around
  8. In a plain milling machine, the table can be moved
  9. Jigs are used
  10. In centreless grinding, the surface speed of regulating wheel is
  11. The specific cutting energy used for establishing the machinability of the metal depends upon its
  12. The chuck used for setting up of heavy and irregular shaped work should be
  13. Calculate the weld per minute, work speed of circular electrode of 220 mm diameter for carrying out…
  14. In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth…
  15. The lathe spindles are usually made hollow and provided with
  16. Broaching is applied for machining
  17. The factor considered for evaluation of machinability is
  18. Which of the following statement is correct about EDM machining?
  19. The in-feed grinding is used to
  20. In _________ operation, the chip thickness is minimum at the beginning of the cut and it reaches to…
  21. In order to prevent tool from rubbing the work _________ on tools are provided.
  22. A tool used to withdraw a drill from the sleeve is called
  23. A type of welding flows, which is the result of a perfect proportion and mixture of acetylene and oxygen…
  24. In a shaper, the metal is removed during
  25. A single point thread cutting tool should ideally hav
  26. The angle between the shear plane and __________ is called shear angle.
  27. Hard and tough materials like cast iron should be turned at
  28. A ring gauge is used to measure
  29. Grinding wheels should be tested for balance
  30. In a plain milling cutter, the portion of the gash adjacent to the cutting edge on which the chip impinges…