Related Questions

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
A mixture of dry air and water vapour, when the air has diffused the maximum amount of water vapour into it, is called
A Dry air
B Moist air
C Saturated air
D Specific humidity
When water changes from a liquid to a vapour, we call this process:
A Freezing
B Condensation
C Sublimation
D Deposition
E Evaporation
A liquid under pressure greater than its vapour pressure for the temperature involved is called a __________ liquid.
A Subcooled
B Saturated
C Non-solidifiable
D None of these
Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a __________ vapour.
A Superheated
B Desuperheated
C Non-condensable
D None of these
The scales form in heat exchanges after a period of operation and provide additional resistance to heat transfer with some heat transfer coefficient . The reciprocal of this scale heat transfer coefficient is called .
A scaling factor
B forming factor
C resisting factor
D fouling factor
If the vapour pressure at two temperatures of a solid phase in equilibrium with its liquid phase are known, then the latent heat of fusion can be calculated by the
A Maxwell's equation
B Clayperon-Claussius equation
C Van Laar equation
D Nernst Heat Theorem
Water changes -- vapour. Fill up the gap.
A for
B with
C into
D in
Water changes ___ vapour.
A with
B to
C into
D in

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