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
At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is __________ percent.
A 100
B 0
C 50
D Between 0 and 100
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
At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes
A 1
B 0
C ∞
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
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
The temperature to which a vapour gas mixture must be cooled (at varying humidity) to become saturated is called the __________ temperature.
A Dew point
B Wet bulb
C Dry bulb
D None of these
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
A mixture contains 2/5 of element A and 3/5 of element B. When 5ml of A is added to the mixture, the proportion of B in the mixture changes to 1/5. What amount of A was originally present in the mixture before the addition was made ?
A 1ml
B 1.5ml
C 2.5ml
D 6ml
A jar contains a mixture of oil and water in the ratio 22 :3 . 50 litres of the mixture was taken out and 25 litres of water was added to it. If water was 34% in the resultant mixture, what was the initial quantity of the mixture (in litres ) in the jar?
A 175
B 150
C 75
D 125

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