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 a lithium bromide absorption refrigeration system
A Lithium bromide is used as a refrigerant and water as an absorbent
B Water is used as a refrigerant and lithium bromide as an absorbent
C Ammonia is used as a refrigerant and lithium bromide as an absorbent
D None of the above
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
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
A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect?
A Vapor compression cycle using expansion valve
B Air refrigeration cycle
C Vapor compression cycle using expansion engine
D Carnot refrigeration cycle
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
Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is
A Positive
B Negative
C Zero
D Infinity
The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent.
A 60
B 30
C 95
D 100

Next steps