Refrigeration and Air Conditioning Superheating in a refrigeration cycle O.P remains unaltered Decreases C.O.P Other factors decide C.O.P Increases C.O.P O.P remains unaltered Decreases C.O.P Other factors decide C.O.P Increases C.O.P ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is More Less More or less depending on ambient conditions Same More Less More or less depending on ambient conditions Same ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be 2.33 1.33 3.33 4.33 2.33 1.33 3.33 4.33 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used in small tonnage commercial machines (hermetically sealed units) is Ammonia Sulphur dioxide R-12 Carbon dioxide Ammonia Sulphur dioxide R-12 Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One ton of the refrigeration is The refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours The standard unit used in refrigeration problems The cooling effect produced by melting 1 ton of ice The refrigeration effect to produce 1 ton of ice at NTP conditions The refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours The standard unit used in refrigeration problems The cooling effect produced by melting 1 ton of ice The refrigeration effect to produce 1 ton of ice at NTP conditions ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The thermostatic expansion valve is used in ________ type of evaporators. Flooded DX coil None of these Dry Flooded DX coil None of these Dry ANSWER DOWNLOAD EXAMIANS APP
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