In a vapour compression cycle the vapour as it leaves the compressor is
A.In liquid form
B.Wet vapour
C.Dry vapour
D.Dry and saturated vapour
E.None of the above
Category: Refrigeration and Air conditioning Mcqs
Which of the following is not a desirable property of a refrigerant?
A.High critical temperature
B.Low specific heat of liquid
C.Low boiling point
D.High specific volume of air
E.All of the above
In vapour absorption system using ammonia, water is required for
A.Condenser only
B.Absorber only
C.Separator only
D.Condenser and absorber
E.Condenser, absorber and separator
A storage tank which receives liquid refrigerant from evaporator and prevents it from flowing into suction line is known as
A.Accumulator
B.Agitator
C.Balancer
D.Condenser
E.None of the above
A thermometer installed, in a vapour compression ammonia system, after the condenser shows elevated reading than the normal. It shows that
A.Condenser needs cleaning
B.Cooling tower or spray pond not handling the load properly
C.Uneven water distribution over the condensing surfaces
D.Any of the above
E.None of the above
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
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
