Refrigeration and Air Conditioning In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is Heated and humidified Heated and dehumidified Cooled and humidified Cooled and dehumidified Heated and humidified Heated and dehumidified Cooled and humidified Cooled and dehumidified ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle the condition of refrigerant is superheated vapour After passing through the expansion or throttle valve Before passing through the condenser Before entering the expansion valve After passing through the condenser After passing through the expansion or throttle valve Before passing through the condenser Before entering the expansion valve After passing through the condenser 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 bypass factor for a cooling coil May increase or decrease with increase in velocity of air passing through it depending upon the condition of air entering Increases with increase in velocity of air passing through it Decreases 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 Increases with increase in velocity of air passing through it Decreases with increase in velocity of air passing through it Remains unchanged with increase in velocity of air passing through it ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Presence of moisture in a refrigerant affects the working of Evaporator Condenser Compressor Expansion valve Evaporator Condenser Compressor Expansion valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by ( O.P.)P = ( O.P)R - 1 ( O.P)P = ( O.P.)P = ( O.P.)R + 1 O.P.)R + 2 O.P)R ( ( O.P)P = ( ( O.P.)P = ( O.P)R - 1 ( O.P)P = ( O.P.)P = ( O.P.)R + 1 O.P.)R + 2 O.P)R ( ( O.P)P = ( ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS