A. near critical temperature of refrigerant
B. above critical temperature
C. at critica. temperature
D. much below critical temperature
E. could be anywhere
Related Mcqs:
- Highest pressure encountered in a refrigeration system should be________________?
A. critical pressure of refrigerant
B. much below critical pressure
C. much above critical pressure
D. near critical pressure
E. there is no such restriction - A refrigeration cycle operates between condenser temperature of + 27°C and evaporator temperature of- 23°C. The Cannot coefficient of performance of cycle will be_________________?
A. 0.2
B. 1.2
C. 5
D. 6
E. 10 - The C.O.P of a refrigeration cycle with increase in evaporator temperature, keeping condenser temperature constant, will______________________?
A. increase
B. decrease
C. remain unaffected
D. may increase or decrease depending on the type of refrigerant used
E. unpredictable - The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P_____________________?
A. more
B. less
C. equally.
D. unpredictable
E. none of the above - The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will__________________?
A. increase
B. decrease
C. may increase or decrease depending on the type of refrigerant used
D. remain unaffected
E. unpredictable - One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice_________________?
A. in 1 hour
B. in 1 minute
C. in 24 hours
D. in 12 hours
E. in 10 hours - If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be________________?
A. same
B. more
C. less
D. more/less depending on rating
E. unpredictable - Air refrigeration cycle is used in ____________________?
A. domestic refrigerators
B. commercial refrigerators
C. air conditioning
D. gas liquefaction
E. such a cycle does not exist - In a refrigeration cycle, the flow of refrigerant is controlled by___________________?
A. compressor
B. condenser
C. evaporator
D. expansion valve
E. all of the above - Super heating in a refrigeration cycle __________________?
A. increases COP
B. decreases COP
C. COP remains unaltered
D. other factors decide COP
E. unpredictable
