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 relative saturation of a partially saturated mixture of vapour and gas can be increased by __________ of the mixture.
A Reducing the total pressure
B Increasing the total pressure
C Reducing the temperature
D Both B and C
__________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid.
A Dew point
B Bubble point
C Dry bulb temperature
D Wet bulb temperature
Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the
A Nature of the liquid
B Nature of the gas
C Temperature of the liquid
D Total pressure
The temperature to which air must be cooled in order to become saturated is the:
A Minimum temperature
B Dew point temperature
C Wet-bulb temperature
D Freezing point
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
The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure, is called
A Humidity ratio
B Relative humidity
C Absolute humidity
D Degree of saturation
The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called
A Humidity ratio
B Relative humidity
C Absolute humidity
D Degree of saturation
Saturated molal absolute humidity of the vapor-gas mixture depends upon the
A Vapor pressure at dry bulb temperature
B Total pressure
C Both A & B
D Neither A nor B

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