In a psychrometric chart vertical lines indicate
A.Dry bulb temperature
B.Wet bulb temperature
C.Dew point temperature
D.Percentage humidity
E.Relative humidity
Category: Refrigeration and Air conditioning Mcqs
No liquid can exist as a liquid at
A.0?C
B.100?C
C.Zero pressure
D.Zero viscosity
E.10,000 m height above the surface of earth
The drift loss in cooling towers is around
A.1%
B.2 to 5%
C.10 to 20%
D.30 to 35%
E.40 to 50%
A refrigerant with lowest freezing point temperature is
A.Freon 11
B.Freon 12
C.Freon 22
D.Ammonia
E.Carbondioxide
Capacity of a domestic refrigerator is in the range
A.0.1 to 0.3 tonnes
B.1 to 3 tonnes
C.3 to 5 tonnes
D.5 to 7 tonnes
E.7 to 10 tonnes
In cooling towers the heat is dissipated mainly by
A.Radiation
B.Convection
C.Conduction
D.Evaporation
E.Freezing
Which type of compressor is commonly used in room air-conditioner
A.Reciprocating
B.Rotory
C.Screw
D.Centrifugal
E.None of the above
Which refrigerant has the highest critical point temperature?
A.Ammonia
B.Freon 11
C.Freon 12
D.Freon 22
E.None of the above
