Refrigeration and Air Conditioning In vapour compression cycle the condition of refrigerant is superheated vapour Before entering the expansion valve Before passing through the condenser After passing through the expansion or throttle valve After passing through the condenser Before entering the expansion valve Before passing through the condenser After passing through the expansion or throttle valve After passing through the condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which each constituent would exert, if it occupied the same space by itself. This statement is called Newton's law of gases Dalton's law of partial pressures Avogadro's hypothesis Kinetic theory of gases Newton's law of gases Dalton's law of partial pressures Avogadro's hypothesis Kinetic theory of gases ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature during sensible heating of air Decreases Increases None of these Remains constant Decreases Increases None of these Remains constant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The undesirable property of a refrigerant is Non-flammable High boiling point Non-explosive Non-toxic Non-flammable High boiling point Non-explosive Non-toxic ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used in small tonnage commercial machines (hermetically sealed units) is R-12 Ammonia Carbon dioxide Sulphur dioxide R-12 Ammonia Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Critical pressure of a liquid is the pressure Above which liquid will remain liquid Above which liquid becomes vapour Above which liquid becomes gas Above which liquid becomes solid Above which liquid will remain liquid Above which liquid becomes vapour Above which liquid becomes gas Above which liquid becomes solid ANSWER DOWNLOAD EXAMIANS APP
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