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  1. Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at…
  2. At absolute zero temperature, for any reaction involving condensed phases
  3. Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are __________…
  4. Powder metallurgy technique is used in the production of __________ tools.
  5. Inertial forces are obtained, when the elastic forces are multiplied by __________ number.
  6. __________ of test specimens is not involved in any hardness testing method.
  7. Which of the following is not a charge material for cupola?
  8. Case hardening of a material is
  9. Which of the following is resistant to the action of both heat & chemicals?
  10. Pick out the wrong statement.
  11. Babbitt lining is used on brass/bronze bearings to increase the
  12. The product of a commercial direct reduction process is
  13. Silicon in steel
  14. Window panes of aeroplanes are normally made of
  15. For separating small pieces of metal from engine oil of a car, the best separating technique is the
  16. In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer…
  17. __________ is used as a material of construction for the blade of power saw.
  18. Normalising of a casting does not
  19. Projection welding & stud welding is categorised as the __________ welding.
  20. With increase in temperature, the electrical conductivity of semiconductors
  21. If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________…
  22. In the diving apparatus, helium is used along with oxygen, because it is
  23. Which of the following phenomenon will exhibit the minimum heat transfer?
  24. The materials which fracture even at small strains are termed as brittle, while those materials which…
  25. Addition of __________ to steel does not help in improving its machinability.
  26. Titanium is added to molten aluminium alloys before casting for the purpose of
  27. The main reducing agent in iron blast furnace is
  28. A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change.…
  29. About __________ ton of coke is required in a cupola to produce one ton of casting.
  30. The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the…