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Out of the following, maximum temperature drop for a given heat flow & for the same thickness will be in the case of

A. Steel

B. Glass wood

C. Copper

D. Fireclay bricks

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. Pick out the wrong statement.
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  3. Pipelines carrying various utilities in chemical industries are identified by their colour codes. The…
  4. Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is
  5. Recrystallisation temperature of steel is __________ °C.
  6. __________ is used as a material of construction for the blade of power saw.
  7. Which of the following phenomenon will exhibit the minimum heat transfer?
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  9. Projection welding & stud welding is categorised as the __________ welding.
  10. Fahrenheit and Centigrade scales have the same readings at
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  12. Most important property of steels for use in automobile bodies is the
  13. Lead is poured into the joints between two __________ pipes.
  14. The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.
  15. Multistage compression of air as compared to single stage compression offers the advantage of
  16. Biological shield in a nuclear reactor is generally provided to protect against the
  17. While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen…
  18. The activity co-efficient of the solute in a dilute solution
  19. Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with…
  20. Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.
  21. Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.
  22. __________ rubber is generally used for making 'O' rings used for vacuum sealings.
  23. What is the range of tempering temperature (°C) for most of the materials?
  24. The thermodynamic law, = constant, is not followed by the
  25. Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.
  26. One ton of refrigeration is not equivalent to the heat removal rate of
  27. When the wavelength of incident X-rays increases, the angle of diffraction
  28. Leakage in a cooking gas cylinder is detected by
  29. Powder metallurgy technique is used in the production of __________ tools.
  30. Pick out the wrong statement.