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  1. Earing is a defect found in steels after the following metal working operation.
  2. Which of the following is not a charge material for cupola?
  3. The escape velocity of a body on earth which is independent of its mass is about __________ km/second.
  4. Resilience of a bolt can be increased by increasing its
  5. Which of the following equipments is used for liquid dispersion?
  6. Insulation of liquid surface can be achieved by __________ on top of its surface.
  7. Ammonia leakage in the refrigeration system is detected by
  8. A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C…
  9. In connection with corrosion of metals, passivation is the process that
  10. In multipass welds, shot peening is done after each pass to
  11. For the Stoke's law to be valid in the case of a falling sphere in a fluid, the
  12. In a good rimming steel
  13. Hot working of lead is carried out at
  14. L.D. (Linz-Donawitz) converter is used in the production of
  15. What is the value of entropy at 273°K?
  16. Desalination of water
  17. Natural water contains approximately __________ percent of heavy water.
  18. Even though heat transfer co-efficient in boiling liquids is large, use of fins is advantageous, when…
  19. The ability of tool steel to resist softening at high temperatures is termed as __________ hardness.
  20. __________ furnace is generally used in the non-ferrous foundries.
  21. Heat release during phase change is observed in case of a/an
  22. The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following…
  23. Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C…
  24. The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the…
  25. The units of the rate constant for a second order reaction are
  26. For separating small pieces of metal from engine oil of a car, the best separating technique is the
  27. Cold heading or upsetting is categorised as the __________ process.
  28. Corrosion of metals cannot be prevented by its
  29. Corona discharge is related to the operation of a/an
  30. Percentage of argon (by volume) in dry atmospheric air is about