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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the value of C.O.P. of reversed Carnot Cycle?

0.25
1.25
0.5
0.8

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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 hour
In 1 minute
In 24 hours
In 12 hours

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Refrigeration and Air Conditioning
An important characteristic of absorption system of refrigeration is

noisy operation
quiet operation
very little power consumption
cooling below 0°C

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Refrigeration and Air Conditioning
In vapour compression cycle the condition of refrigerant is superheated vapour

After passing through the expansion or throttle valve
Before entering the expansion valve
Before passing through the condenser
After passing through the condenser

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Refrigeration and Air Conditioning
The refrigerant for a refrigerator should have

Low latent heat
High sensible heat
High total heat
High latent heat

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Refrigeration and Air Conditioning
Presence of moisture in a refrigerant affects the working of

Compressor
Condenser
Expansion valve
Evaporator

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MORE MCQ ON Refrigeration and Air Conditioning

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