Refrigeration and Air Conditioning In a lithium bromide absorption refrigeration system None of these Lithium bromide is used as a refrigerant and water as an absorbent Ammonia is used as a refrigerant and lithium bromide as an absorbent Water is used as a refrigerant and lithium bromide as an absorbent None of these Lithium bromide is used as a refrigerant and water as an absorbent Ammonia is used as a refrigerant and lithium bromide as an absorbent Water is used as a refrigerant and lithium bromide as an absorbent ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Reducing suction pressure in refrigeration cycle Lowers evaporation temperature Lowers compressor capacity because vapour is lighter All of these Increases power required per ton of refrigeration Lowers evaporation temperature Lowers compressor capacity because vapour is lighter All of these Increases power required per ton of refrigeration ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used in small tonnage commercial machines (hermetically sealed units) is Sulphur dioxide R-12 Carbon dioxide Ammonia Sulphur dioxide R-12 Carbon dioxide Ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The superheated vapour region, in a pressure enthalpy chart, is represented by the space Between the saturated liquid line and saturated vapour line To the left of saturated liquid line To the right of saturated liquid line None of these Between the saturated liquid line and saturated vapour line To the left of saturated liquid line To the right of saturated liquid line None of these 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) 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 20°C DBT and 80% RH 22°C DBT and 60% RH 25°C DBT and 40% RH ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The material of pipe lines for a system using Freon as a refrigerant should be Copper Aluminium Steel Brass Copper Aluminium Steel Brass ANSWER DOWNLOAD EXAMIANS APP
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