Evaporative cooling process employs a combination of cooling and humidification in which the

A. Sensible heat is added

B. Sensible heat is removed and the latent heat is added

C. Latent heat is removed

D. Sensible heat is added and latent heat is removed

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  1. The transition temperature at which all the ferromagnetic materials become paramagnetic materials is…
  2. Laser welding is widely employed in the __________ industries.
  3. Which of the following fastening devices has a head at one end and a nut fitted to the other?
  4. Heating of ferromagnetic materials to a temperature above Curie temperature makes it
  5. Which of the following phenomenon will exhibit the minimum heat transfer?
  6. Thermistors are used in __________ devices.
  7. Inertial forces are obtained, when the elastic forces are multiplied by __________ number.
  8. Biological shield in a nuclear reactor is generally provided to protect against the
  9. The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the
  10. Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.
  11. Recrystallisation temperature of steel is __________ °C.
  12. The elastic strain in copper is due to the
  13. Principal alloying element in Elinvar (used for making hair springs for watches) is
  14. Eutectoid composition of carbon steel at room temperature is
  15. __________ is the hardest material out of the following.
  16. Colour comparator is used to measure the
  17. Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.
  18. While the recrystallisation temperature for pure metals is 0.3 Tm, the same for alloys is equal to __________…
  19. Holes for riveting purposes should be preferably made by
  20. A form of stress corrosion failure termed as 'season cracking' is generally observed in
  21. When the wavelength of incident X-rays increases, the angle of diffraction
  22. Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles…
  23. Heat transfer by __________ is almost absent in case of fluidised bed drying operation.
  24. Insulation of liquid surface can be achieved by __________ on top of its surface.
  25. Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.
  26. Exposure to __________ accelerates the degradation of plastics.
  27. The mechanism involved in the removal of metal in drilling operation is by
  28. Minimum thermal efficiency of a steam boiler may be around __________ percent
  29. Filler material used in welding should have __________ as compared to the parent metal to be welded.
  30. Water hammer is caused in steam carrying pipelines, because of