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 The bypass factor for a cooling coil Increases with increase in velocity of air passing through it Remains unchanged with increase in velocity of air passing through it May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering Decreases with increase in velocity of air passing through it Increases with increase in velocity of air passing through it Remains unchanged with increase in velocity of air passing through it May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering Decreases with increase in velocity of air passing through it ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A vapour absorption refrigeration system Gives noisy operation Requires little power consumption Gives quiet operation Cools below 0°C Gives noisy operation Requires little power consumption Gives quiet operation Cools below 0°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The heat rejection factor (HRF) is given by 1 - (1/C.O.P) 1 + C.O.P 1 - C.O.P. 1 + (1/C.O.P) 1 - (1/C.O.P) 1 + C.O.P 1 - C.O.P. 1 + (1/C.O.P) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Chaperon equation is applicable for registration at Sublimation temperature Saturation point of vapour Saturation point of liquid Triple point Sublimation temperature Saturation point of vapour Saturation point of liquid Triple point ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Freon group of refrigerants are Inflammable Toxic Nontoxic and non-inflammable Non-inflammable and toxic Inflammable Toxic Nontoxic and non-inflammable Non-inflammable and toxic ANSWER DOWNLOAD EXAMIANS APP
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