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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Chaperon equation is applicable for registration at

Sublimation temperature
Triple point
Saturation point of liquid
Saturation point of vapour

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Refrigeration and Air Conditioning
While designing the refrigeration system of an aircraft, the prime consideration is that the

Power per TR is low
Mass of refrigerant circulated in the system is low
Mass of the refrigeration equipment is low
System has high C.O.P.

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Refrigeration and Air Conditioning
Pick up the wrong statement. A refrigerant should have

Higher critical temperature
High latent heat of vaporisation
High boiling point
Tow specific heat of liquid

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Refrigeration and Air Conditioning
Pressure of water vapour is given by

None of these
μ/[1 - (1 - μ) (Ps/Pb)]
[Pv (Pb - Pd)]/ [Pd (Pb - Pv)]
0.622 Pv/ (Pb - Pv)

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Refrigeration and Air Conditioning
For better C.O.P of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be

Small
Equal
Anything
High

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Refrigeration and Air Conditioning
Carbon dioxide is

Non-flammable
Colourless
All of the listed here
Odourless

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