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 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
Dew point temperature always gives an indication of the __________ of the moist air.
A Dryness
B Moisture content
C Coolness
D Latent heat
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 can be calculated theoretically using steam table and Dalton's law of partial pressure; if the relative humidity and dry bulb temperature of moist air is known?
A Dew point
B Humidity ratio
C Wet bulb temperature
D None of these
When the __________ the relative humidity of air decreases, despite an increase in the absolute humidity.
A Temperature rises
B Pressure rises
C Temperature falls
D Pressure falls
Air at a particular humidity is heated in a furnace. The new dew point
A Decreases
B Increases
C Depends on the extent of heating
D Remain unchanged
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

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