The heat removed capacity of a one ton refrigerator is
A.100 kcal/4 hour
B.100 kcal/hour
C.50 kcal/min
D.25 kcal/sec
E.None of the above
Category: Refrigeration and Air conditioning Mcqs
A refrigerant is added to vapour compression cycle through
A.High side in vapour form
B.High side in liquid form
C.Low side in liquid form
D.None of the above
Reversed Carnot cycle assumes that all processes in the cycle are
A.Non-flow only
B.Steady flow only
C.Non flow or steady flow
D.Transient flow
A condenser removes from the refrigerant
A.Sensible heat only
B.Latent heat only
C.Sensile heat and latent heat
D.Partly sensible heat and latent heat
E.None of the above
When ammonia is used as a refrigerant in vapour compression cycle, the mass circulated per ton of refrigerating effect will be nearly
A.0.2 kg
B.0.5 kg
C.1 kg
D.1.2 kg
E.1.8 kg
An increase in the movement of the molecules within a solid, liquid or gas corresponds to
A.A drop in temperature
B.No change in temperature
C.Latent heat addition/removal
D.A rise in temperature
E.None of the above
During dehumidification process
A.Specific humidity increases
B.Specific humidity decreases
C.Relative humidity increases
D.Relative humidity decreases
E.Relative humidity does not change
Class II group of refrigerants absorb sensible heat while giving refrigeration effect. Which of the following is a class II refrigerant
A.Ammonia
B.Carbondioxide
C.Freon 12
D.Methyl chloride
E.All of the above
A plant has one 300 ton and one 500 ton centrifugal unit. The total flow of brine is 6400 litres per minute. What should be the distribution of brine flow through each unit
A.3200 litres each
B.2400 litres through 300 ton plant and 4000 litres through 500 ton plant
C.4000 litres through 300 ton plant and 2400 litres through 500 ton plant
D.Same brine should flow through both
E.None of the above
One a psychrometric chart cooling and humidification process using spray can be shown by
A.A horizontal line
B.A vertical line
C.A line parallel to dry bulb temperature lines
D.A line parallel to wet bulb temperature lines
E.A curve
