Refrigeration and Air Conditioning Aqua ammonia is used as refrigerant in the following type of refrigeration system Indirect Compression Direct Absorption Indirect Compression Direct Absorption ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Presence of moisture in a refrigerant affects the working of Evaporator Compressor Expansion valve Condenser Evaporator Compressor Expansion valve Condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The condition of refrigerant as it leaves the compressor in a vapour compression system is Wet vapour Dry saturated vapour Saturated liquid Superheated vapour Wet vapour Dry saturated vapour Saturated liquid Superheated vapour ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The advantage of dry compression is that It results in high volumetric and mechanical efficiency It permits higher speeds to be used All of these It permits complete evaporation in the evaporator It results in high volumetric and mechanical efficiency It permits higher speeds to be used All of these It permits complete evaporation in the evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A pressure gauge on the discharge side of a refrigerant compressor reads too high. The reasons will be Water temperature being high All of these Dirty condenser surface Lack of cooling water Water temperature being high All of these Dirty condenser surface Lack of cooling water ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute temperature, and T₂ = Highest absolute temperature) T₂/ (T₂ - T₁) T₁ / (T₂ - T₁) (T₂ - T₁)/T₁ (T₁ - T₂)/T₁ T₂/ (T₂ - T₁) T₁ / (T₂ - T₁) (T₂ - T₁)/T₁ (T₁ - T₂)/T₁ ANSWER DOWNLOAD EXAMIANS APP
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