Refrigeration and Air Conditioning The temperature of air recorded by a thermometer, when its bulb is surrounded by a wet cloth exposed to the air, is called Wet bulb temperature Dew point temperature None of these Dry bulb temperature Wet bulb temperature Dew point temperature None of these Dry bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The lowest thermal diffusivity is of Iron Rubber Aluminium Lead Iron Rubber Aluminium Lead ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The boiling point of ammonia is -77.7°C -30°C -10.5°C -33.3°C -77.7°C -30°C -10.5°C -33.3°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Ammonia absorption refrigeration cycle requires Very little work input Zero work input Nearly same work input as for vapour compression cycle Maximum work input Very little work input Zero work input Nearly same work input as for vapour compression cycle Maximum work input ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The comfort conditions in air conditioning are at (where DBT = Dry bulb temperature, and RH = Relative humidity) 20°C DBT and 80% RH 22°C DBT and 60% RH 25°C DBT and 40% RH 25°C DBT and 100% RH 20°C DBT and 80% RH 22°C DBT and 60% RH 25°C DBT and 40% RH 25°C DBT and 100% RH ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The bypass factor (B. P. F.) in case of sensible heating of air is (Where td₁ = Dry bulb temperature of air entering the heating coil, td₂ = Dry bulb temperature of air leaving the heating coil, and td₃ = Dry bulb temperature of heating coil) (td₃ - td₁)/(td₂ - td₃) (td₃ - td₂)/(td₃ - td₁) (td₃ - td₁)/(td₃ - td₂) (td₂ - td₃)/(td₃ - td₁) (td₃ - td₁)/(td₂ - td₃) (td₃ - td₂)/(td₃ - td₁) (td₃ - td₁)/(td₃ - td₂) (td₂ - td₃)/(td₃ - td₁) ANSWER DOWNLOAD EXAMIANS APP
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