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The dry bulb, wet bulb and dew point temperatures will all be same when the air is

The dry bulb, wet bulb and dew point temperatures will all be same when the air is Correct Answer fully saturated

Explanation:

Dry Bulb Temperature (DBT):

  • It is a normal temperature measured by an ordinary thermometer.

Wet Bulb Temperature (WBT):

  • It is a temperature measured by thermometer when its bulb is covered with a wet cloth.

Dew point temperature (DPT):

  • It is a temperature at which moisture present in the atmosphere starts condensing or it is the temperature at which the first droplet of moisture is formed.
  • As we know that for each pressure air has a specific saturation temperature, therefore for fully saturated air DBT, WBT and DPT are equal.

  • When the relative humidity of the air is 100%, i.e the air is saturated, the dew point temperature (DPT) equals the wet-bulb temperature (WBT), which is also equal to the dry-bulb temperature.

    So DBT = WBT = DPT

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​For unsaturated air:

DBT > WBT > DPT

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Relative humidity:

  • It is defined as the ratio of the mass of vapour to the mass of vapour under saturation condition.
  • Relative humidity represents vapour absorption capacity.

Related Questions

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