Refrigeration and Air Conditioning Under cooling in a refrigeration cycle Increases C.O.P Decreases C.O.P O.P remains unaltered Other factors decide C.O.P Increases C.O.P Decreases C.O.P O.P remains unaltered Other factors decide C.O.P ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Accumulators should have adequate volume to store refrigerant charge at least 0.75 0.5 0.1 0.25 0.75 0.5 0.1 0.25 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 1.33 2.33 4.33 3.33 1.33 2.33 4.33 3.33 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A good refrigerant should have High specific volume and high latent heat of vaporisation High operating pressures and low freezing point Low C.O.P. and low freezing point High latent heat of vaporisation and low freezing point High specific volume and high latent heat of vaporisation High operating pressures and low freezing point Low C.O.P. and low freezing point High latent heat of vaporisation and low freezing point ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The humidity ratio or specific humidity is the mass of water vapour present in 1 kg of wet air 1 m3 of dry air 1 kg of dry air 1 m3 of wet air 1 kg of wet air 1 m3 of dry air 1 kg of dry air 1 m3 of wet air ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The value of C.O.P in vapour compression cycle is usually Any one of the above Always more than unity Always less than unity Equal to unity Any one of the above Always more than unity Always less than unity Equal to unity ANSWER DOWNLOAD EXAMIANS APP
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