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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
Short horizontal lines on pressure-enthalpy chart show

Constant total heat lines
Constant pressure lines
Constant entropy lines
Constant temperature lines

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Refrigeration and Air Conditioning
Vapour compression refrigeration is somewhat like

None of these
Reversed Carnot cycle
Carnot cycle

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Refrigeration and Air Conditioning
In vapour compression cycle the condition off refrigerant is dry saturated vapour

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

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Refrigeration and Air Conditioning
The index which correlates the combined effects of air temperature, relative humidity and air velocity on the human body, is known as

Mean radiant temperature
None of the listed here
Effective temperature
Dew point temperature

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Refrigeration and Air Conditioning
In a refrigeration system, the expansion device is connected between the

Condenser and receiver
Evaporator and compressor
Receiver and evaporator
Compressor and condenser

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Refrigeration and Air Conditioning
Pressure of water vapour is given by

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

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MORE MCQ ON Refrigeration and Air Conditioning

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