Category: Refrigeration and Air conditioning Mcqs

A.Acetylene torch
B.Halide torch
C.Sulphur stricks
D.Soap and water
E.Any of the above

A.A reciprocating compressor
B.A valveless compressor
C.A thermodynamically efficient comprossor
D.A factory sealed unit containing motor and compressor
E.None of the above

A.Energy equation
B.Vander wall’s equation
C.Lewis equation
D.Maxwell’s equation
E.Clausius Clapeyron equation

A.Percentage of moisture contained in a sample of air
B.Partial pressure of water vapour in a sample of air
C.The temperature of water vapour in air starts
D.The temperature at which condensation of water vapour in air starts
E.The temperature at which ice starts melting in presence of air without external aid

A.Domestic refrigerator
B.Room air conditioner
C.Deep freezer
D.Ice plant
E.None of the above

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

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

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.

A.Freon 12
B.Freon 22
C.Ammonia
D.Carbondioxide
E.Sulphurdioxide

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