Refrigeration and Air Conditioning

A. 0.2
B. 1.2
C. 5
D. 6
E. 10

A. 10%
B. 25%
C. 50%
D. 75%
E. 100%

A. collect liquid refrigerant and prevent it from going to compressor
B. detect liquid in vapour
C. superheat the vapour
D. collect vapours
E. increase refrigeration effect

A. high, of the order of 25°
B. as low as possible (3 to 11°C)
C. zero
D. any value
E. none of the above

A. of cooling medium
B. of freezing zone
C. of evaporator
D. at which refrigerant gas becomes liquid
E. condensing temperature of ice

A. always less than unity
B. always more than unity
C. equal to unity
D. any one of the above
E. none of the above

A. less than 2 kg
B. more than or equal to 3.65 kg
C. more than 10 kg
D. there is no such consideration
E. pone of the above

A. above which liquid will remain liquid
B. above which liquid becomes gas
C. above which liquid becomes vapour
D. above which liquid becomes solid
E. at which all the three phases exist together

A. lower than atmospheric pressure
B. higher than atmospheric pressure
C. equal to atmospheric pressure
D. could be anything
E. none of the above

A. receiver
B. expansion valve
C. evaporator
D. condenser discharge
E. compressor discharge