During adiabatic saturation process on unsaturated air
A.Dry bulb temperature remains constant
B.Wet bulb temperature remains constant
C.Dew point temperature remains constant
D.Relative humidity remains constant
E.None of the above
Category: Refrigeration and Air conditioning Mcqs
Dehydration means
A.Removing hydrogen from a mixture
B.Removing hydrogen from a hydrocarbon
C.Removing water from any matter
D.Removing hydrides from any matter
E.Any of the above
Sub-cooling is
A.Cooling a part of liquid
B.Differential cooling of a liquid
C.Removing latent heat from a gas
D.Removing sensible heat from a liquid
E.Cooling a liquid below 0?C.
Which of the following refrigerant is highly toxic?
A.Freon 12
B.Freon 22
C.Ammonia
D.Carbondioxide
E.Sulphurdioxide
On a particular time of a day if dry bulb temperature is equal to the wet bulb temperature, then it can be safely concluded that
A.Specific humidity of air was 0.010 kg per kg of dry air
B.Dew point was less than 20?C
C.Relative humidity of air was 100%
D.Atmospheric air was free from moisture
E.Rain had occurred one or two hours earlier
When moisture is added to air at constant dry bulb temperature, the process is known as
A.Humidification
B.Sensible cooling
C.Wetting
D.Chilling
E.None of the above
In case of wet bulb depression is zero, it can be concluded that
A.Rain is likely to occur
B.Storm is likely to hit the place
C.Relative humidity is zero
D.Relative humidity is 100%
E.None of the above
Dischloromono fluoroethane is
A.Freon 11
B.Freon 12
C.Freon 21
D.Freon 22
E.None of the above
At 100% humidity
A.We bulb temperature is same as atmospheric temperature
B.Dry bulb temperature is same as atmospheric temperature
C.Wet bulb temperature is same as dry bulb temperature
D.Wet bulb temperature is exactly half the dry bulb temperature
E.Dry bulb temperature is exactly half the wet bulb temperature
