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  1. Hardening of steel is not possible, unless it is heated __________ critical point.
  2. Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution
  3. Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is
  4. The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.
  5. Function of gear box is to
  6. The main constituent of bones is
  7. Silicon percentage in silicon steel used for electrical equipments is about
  8. Which of the following phenomenon/ phenomena is/are diffusion controlled?
  9. Which one is neutral in character?
  10. Current employed in resistance welding ranges from __________ kVA/.
  11. Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C,…
  12. Property responsible for the talcum powder to cling to the skin is the
  13. __________ furnace is generally used in the non-ferrous foundries.
  14. Batch process is preferred over continuous process, when the
  15. Speisses is a mixture of the following:
  16. The most commonly used moderator in nuclear power plants is
  17. Which of the following materials has the least scrap value?
  18. Which of the following gases cause global warming?
  19. Pressure required to increase the density of water by about 1% is __________ atmosphere.
  20. The thermodynamic law, = constant, is not followed by the
  21. Which of the following is not used as a bearing material?
  22. The starting of a car takes time in winter, because the
  23. Fire refining process is employed in case of
  24. Stainless steel is welded with difficulty because of
  25. In multipass welds, shot peening is done after each pass to
  26. In a neutral solution
  27. A material being tested for endurance strength is subjected to the __________ load.
  28. The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral…
  29. Nickel and __________ are the alloying element added in steel to increase its toughness.
  30. Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature…