Refrigeration and Air Conditioning The refrigerant used in small tonnage commercial machines (hermetically sealed units) is Sulphur dioxide Carbon dioxide Ammonia R-12 Sulphur dioxide Carbon dioxide Ammonia R-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Critical pressure of a liquid is the pressure Above which liquid becomes gas Above which liquid becomes vapour Above which liquid becomes solid Above which liquid will remain liquid Above which liquid becomes gas Above which liquid becomes vapour Above which liquid becomes solid Above which liquid will remain liquid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following is not a desirable property of a refrigerant? Low boiling point Good electrical conductor High risibility with oil Large latent heat Low boiling point Good electrical conductor High risibility with oil Large latent heat ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Critical temperature is the temperature above which Water will never evaporate A gas will never liquefy A gas will immediately liquefy Water will evaporate Water will never evaporate A gas will never liquefy A gas will immediately liquefy Water will evaporate ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of Aluminium Copper Brass Steel Aluminium Copper Brass Steel 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 Absolute humidity Relative humidity Humidity ratio Degree of saturation Absolute humidity Relative humidity Humidity ratio ANSWER DOWNLOAD EXAMIANS APP
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