Related Questions

In aqua ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water in
A Condenser
B Evaporator
C Absorber
D None of these
In aqua ammonia and Lithium bromide water absorption refrigeration systems, the refrigerants are respectively
A Water and water
B Water and lithium bromide
C Ammonia and lithium bromide
D Ammonia and water
The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system
A Is as light as possible
B Has very high C.O.P
C Employs minimum quantity of refrigerant
D Consumer minimum horse power
Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor)?
A Freon
B Liquid sulphur dioxide
C Methyl chloride
D Ammonia
In vapour compression refrigeration system, refrigerant occurs as liquid between
A Condenser and expansion valve
B Compressor and evaporator
C Expansion valve and evaporator
D Compressor and condenser
Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator.
A Equalize
B Reduce
C Increase
D None of these
The leakage in a refrigeration system using ammonia is detected by
A Halide torch
B Sulphur sticks
C Soap and water
D All of these
Ammonia leakage in the refrigeration system is detected by
A Sulphur stick, which on detection gives white smoke
B Using chemical reagents
C Its smell
D Soap solution
Refrigeration in aeroplanes usually employs the following refrigerant
A CO2
B Freon-11
C Freon-22
D Air
In a refrigeration cycle, the flow of refrigerant is controlled by
A Compressor
B Condenser
C Evaporator
D Expansion valve

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