Refrigeration and Air Conditioning An infinite parallel planes with emissivities e₁ and e₂, the interchange factor for radiation from surface 1 to surface 2 is given by e₁ + e₂ 1/e₁ + 1/e₂ (e₁ + e₂)/ e₁ + e₂ - e₁e₂ e₁e₂ e₁ + e₂ 1/e₁ + 1/e₂ (e₁ + e₂)/ e₁ + e₂ - e₁e₂ e₁e₂ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The value of C.O.P in vapour compression cycle is usually Any one of the above Always more than unity Always less than unity Equal to unity Any one of the above Always more than unity Always less than unity Equal to unity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pick up the wrong statement. A refrigerant should have High latent heat of vaporisation Higher critical temperature High boiling point Tow specific heat of liquid High latent heat of vaporisation Higher critical temperature High boiling point Tow specific heat of liquid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The relative humidity lines on a psychrometric chart are Curved lines Horizontal and non-uniformly spaced Horizontal and uniformly spaced Vertical and uniformly spaced Curved lines Horizontal and non-uniformly spaced Horizontal and uniformly spaced Vertical and uniformly spaced ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the lowest freezing point? R-12 R-11 R-22 Ammonia R-12 R-11 R-22 Ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During adiabatic saturation process on unsaturated air ___ remains constant. Relative humidity Dew point temperature Dry bulb temperature Wet bulb temperature Relative humidity Dew point temperature Dry bulb temperature Wet bulb temperature ANSWER DOWNLOAD EXAMIANS APP
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