Refrigeration and Air Conditioning Environmental protection agencies advice against the use of chlorofluorocarbon refrigerants since These react with plants and cause greenhouse effect These react with ozone layer These react with water vapour and cause acid rain These react with oxygen and cause its depletion These react with plants and cause greenhouse effect These react with ozone layer These react with water vapour and cause acid rain These react with oxygen and cause its depletion ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The leaks in a refrigeration system using Freon are detected by Halide torch which on detection produces greenish flame lighting Sulphur sticks which on detection gives white smoke Using reagents Smelling Halide torch which on detection produces greenish flame lighting Sulphur sticks which on detection gives white smoke Using reagents Smelling 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 refrigeration effect to produce 1 ton of ice at NTP conditions The cooling effect produced by melting 1 ton of ice The standard unit used in refrigeration problems The refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours The refrigeration effect to produce 1 ton of ice at NTP conditions The cooling effect produced by melting 1 ton of ice The standard unit used in refrigeration problems ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The relative humidity lines on a psychrometric chart are Curved lines Horizontal and uniformly spaced Horizontal and non-uniformly spaced Vertical and uniformly spaced Curved lines Horizontal and uniformly spaced Horizontal and non-uniformly spaced Vertical and uniformly spaced ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The advantage of dry compression is that It permits complete evaporation in the evaporator All of these It results in high volumetric and mechanical efficiency It permits higher speeds to be used It permits complete evaporation in the evaporator All of these It results in high volumetric and mechanical efficiency It permits higher speeds to be used ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the liquid ammonia passing through the evaporator. Reduce Equalize Increase None of these Reduce Equalize Increase None of these ANSWER DOWNLOAD EXAMIANS APP
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