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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The refrigerant for a refrigerator should have

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

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Refrigeration and Air Conditioning
For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of

Brass
Aluminium
Steel
Copper

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Refrigeration and Air Conditioning
The cooling system used for supersonic aircrafts and rockets is

Regenerative air cooling system
Bootstrap air cooling system
Reduced ambient air cooling system
Simple air cooling system

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Refrigeration and Air Conditioning
Pressure of water vapour is given by

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

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

Curved line
Vertical line
Horizontal line
Inclined line

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Refrigeration and Air Conditioning
The process, generally used in winter air-conditioning to warm and humidity the air, is called

Cooling and dehumidification
Dehumidification
Heating and humidification
Humidification

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MORE MCQ ON Refrigeration and Air Conditioning

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