Refrigeration and Air Conditioning A vapour absorption refrigeration system Cools below 0°C Gives noisy operation Requires little power consumption Gives quiet operation Cools below 0°C Gives noisy operation Requires little power consumption Gives quiet operation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the lowest freezing point? Ammonia R-22 R-12 R-11 Ammonia R-22 R-12 R-11 ANSWER DOWNLOAD EXAMIANS APP
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 Dew point temperature None of these Wet bulb temperature Dry bulb temperature Dew point temperature None of these Wet bulb temperature Dry bulb temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a heat pump working on a reversed Carnot cycle is T₂/(T₂ - T₁) (T₂ - T₁)/T₁ T₁/(T₂ - T₁) (T₁ - T₂)/T₁ T₂/(T₂ - T₁) (T₂ - T₁)/T₁ T₁/(T₂ - T₁) (T₁ - T₂)/T₁ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called Degree of saturation Relative humidity Humidity ratio Absolute humidity Degree of saturation Relative humidity Humidity ratio Absolute humidity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following is not a desirable property of a refrigerant? High risibility with oil Low boiling point Large latent heat Good electrical conductor High risibility with oil Low boiling point Large latent heat Good electrical conductor ANSWER DOWNLOAD EXAMIANS APP
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