Refrigeration and Air Conditioning Which of the following is not a desirable property of a refrigerant? Low boiling point High risibility with oil Large latent heat Good electrical conductor Low boiling point High risibility with oil Large latent heat Good electrical conductor ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by Operating the machine at lower speeds Lowering the higher temperature Raising the higher temperature Operating the machine at higher speeds Operating the machine at lower speeds Lowering the higher temperature Raising the higher temperature Operating the machine at higher speeds ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In S.J. unit, one ton of refrigeration is equal to 21 kJ/ min 840 kJ/ min 210 kJ/ min 420 kJ/ min 21 kJ/ min 840 kJ/ min 210 kJ/ min 420 kJ/ min ANSWER DOWNLOAD EXAMIANS APP
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 e₁e₂ 1/e₁ + 1/e₂ e₁ + e₂ (e₁ + e₂)/ e₁ + e₂ - e₁e₂ e₁e₂ 1/e₁ + 1/e₂ e₁ + e₂ (e₁ + e₂)/ e₁ + e₂ - e₁e₂ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb depression indicates _________ humidity of the air. Relative Specific None of these Absolute Relative Specific None of these Absolute ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The dry bulb temperature lines, on the psychrometric chart are Horizontal and uniformly spaced Vertical and uniformly spaced Horizontal and non-uniformly spaced Curved lines Horizontal and uniformly spaced Vertical and uniformly spaced Horizontal and non-uniformly spaced Curved lines ANSWER DOWNLOAD EXAMIANS APP
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