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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
During a refrigeration cycle, heat is rejected by the refrigerant in a

Compressor
Expansion valve
Evaporator
Condenser

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Refrigeration and Air Conditioning
One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice

In 1 minute
In 24 hours
In 12 hours
In 1 hour

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Refrigeration and Air Conditioning
Ammonia absorption refrigeration cycle requires

Very little work input
Maximum work input
Zero work input
Nearly same work input as for vapour compression cycle

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Refrigeration and Air Conditioning
The dehumidification process, on the psychrometric chart, is shown by

Curved line
Horizontal line
Vertical line
Inclined line

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Refrigeration and Air Conditioning
The heat rejection factor (HRF) is given by

1 + (1/C.O.P)
1 + C.O.P
1 - (1/C.O.P)
1 - C.O.P.

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Refrigeration and Air Conditioning
The evolution of heat of solution takes place in ammonia absorption plant when

Ammonia vapour is driven out of solution
Lithium bromide mixes with ammonia
Ammonia vapour goes into solution
Weak solution mixes with strong solution

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MORE MCQ ON Refrigeration and Air Conditioning

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