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REFRIGERATION AND AIR CONDITIONING

Refrigeration and Air Conditioning
The capillary tube, as an expansion device, is used in

Domestic refrigerators
Water coolers
All of these
Room air conditioners

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Refrigeration and Air Conditioning
The sensible heat factor during the heating and humidification process is given by (where h₁ = Enthalpy of air entering the heating coil, h₂ = Enthalpy of air leaving the heating coil, and hA = Enthalpy of air at the end of humidification process)

(hA - h2)/ (h1 - h2)
(h2 - hA)/ (h1 - h2)
(hA - h1)/ (h2 - h1)
(h1 - h2)/ (hA - h2)

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Refrigeration and Air Conditioning
The sensible heat factor during cooling and dehumidification process is given by (where h₁ = Enthalpy of air entering the cooling coil, h₂ = Enthalpy of air leaving the cooling coil, and hA = Enthalpy of air at the end of dehumidification process)

(h2 - hA)/ (h1 - h2)
(hA - h1)/ (h2 - h1)
(h1 - h2)/ (hA - h2)
(hA - h2)/ (h1 - h2)

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Refrigeration and Air Conditioning
In chemical dehumidification process,

All of these
Dry bulb temperature increases
Dew point temperature decreases
Wet bulb temperature decreases

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Refrigeration and Air Conditioning
The specific humidity during heating and humidification process.

None of these
Increases
Remains constant
Decreases

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