Related Questions

Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.
A Molal
B Relative
C Percentage
D None of these
The dew point of moist air becomes __________ with decrease in its relative humidity.
A Less than the wet bulb temperature
B More than the wet bulb temperature
C More than the dry bulb temperature
D Equal to wet bulb temperature
With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature)
A Increases
B Remains unchanged
C Decreases
D Decreases linearly
When the air is passed through an insulated chamber having sprays of water maintained at a temperature higher than the dew point temperature of entering air but lower than its dry bulb temperature, then the air is said to be
A Cooled and humidified
B Cooled and dehumidified
C Heated and humidified
D Heated and dehumidified
When water is sprayed on air, passing through an insulated chamber maintained at a temperature higher than the dew point of entering air but lower than its dry bulb temperature, then the air is
A Cooled and dehumified
B Heated and humidified
C Cooled and humidified
D Heated and dehumidified
The percentage humidity is less than the relative humidity only at __________ percent humidity.
A Zero
B Hundred
C Both zero and hundred
D None of these
As relative humidity decreases, the dew point temperature will be ________ wet bulb temperature.
A Same as
B Lower than
C Higher than
D None of these
If atmospheric temperature and dew point are nearly equal, then the relative humidity is
A Zero
B 50%
C Almost 100%
D Unpredictable
Which of the following is not an additive for flue gases from furnace to reduce its dew-point?
A Ammonia
B Fine dolomite
C Alkaline powders
D None of these
The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the
A Temperature rises
B Pressure rises
C Temperature falls
D Pressure falls

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