Related Questions

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
Aqua ammonia is used as refrigerant in the following type of refrigeration system
A Compression
B Direct
C Indirect
D Absorption
In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase.
A Liquid
B Gas
C Both A & B
D Neither A nor B
Ammonia absorption refrigeration cycle requires
A Very little work input
B Maximum work input
C Nearly same work input as for vapour compression cycle
D Zero work input
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
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by
A Liquid pump
B Generator
C Absorber and generator
D Absorber, generator and liquid pump
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
One Ton of Refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice---
A In 1 hour
B In 24 hour
C In 10 minutes
D In 12 hour

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