Refrigeration and Air Conditioning In a vapour compression refrigeration system, a throttle valve is used in place of an expander because It improves the C.O.P., as the condenser is small It considerably reduces mass of the system It leads to significant cost reduction The positive work in isentropic expansion of liquid is very small It improves the C.O.P., as the condenser is small It considerably reduces mass of the system It leads to significant cost reduction The positive work in isentropic expansion of liquid is very small ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a domestic refrigerator, a capillary tube controls the flow of refrigerant from the Evaporator to the thermostat Condenser to the expansion valve Expansion valve to the evaporator Condenser to the evaporator Evaporator to the thermostat Condenser to the expansion valve Expansion valve to the evaporator Condenser to the evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Condensing temperature in a refrigerator is the temperature Of evaporator Of cooling medium At which refrigerant gas becomes liquid Of freezing zone Of evaporator Of cooling medium At which refrigerant gas becomes liquid Of freezing zone ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The bypass factor for a cooling coil Remains unchanged with increase in velocity of air passing through it Increases with increase in velocity of air passing through it Decreases 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 Remains unchanged with increase in velocity of air passing through it Increases with increase in velocity of air passing through it Decreases 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 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The reduced ambient air cooling system has Two cooling turbines and two heat exchangers One cooling turbine and two heat exchangers One cooling turbine and one heat exchanger Two cooling turbines and one heat exchanger Two cooling turbines and two heat exchangers One cooling turbine and two heat exchangers One cooling turbine and one heat exchanger Two cooling turbines and one heat exchanger ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The comfort conditions in air conditioning are at (where DBT = Dry bulb temperature, and RH = Relative humidity) 25°C DBT and 40% RH 25°C DBT and 100% RH 20°C DBT and 80% RH 22°C DBT and 60% RH 25°C DBT and 40% RH 25°C DBT and 100% RH 20°C DBT and 80% RH 22°C DBT and 60% RH ANSWER DOWNLOAD EXAMIANS APP
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