Refrigeration and Air Conditioning During a refrigeration cycle, heat is rejected by the refrigerant in a Expansion valve Condenser Compressor Evaporator Expansion valve Condenser Compressor Evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and Lithium bromide Sulphur dioxide R-12 Carbon dioxide Lithium bromide Sulphur dioxide R-12 Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The emissivity of a polished silver body is ____ as compared to black body. Very low Same High Low Very low Same High Low ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a bootstrap air evaporative cooling system, the evaporator is provided Between the combustion chamber and the first heat exchanger Between the first heat exchanger and the secondary compressor Between the secondary compressor and the second heat exchanger Between the second heat exchanger and the cooling turbine Between the combustion chamber and the first heat exchanger Between the first heat exchanger and the secondary compressor Between the secondary compressor and the second heat exchanger Between the second heat exchanger and the cooling turbine 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 3.33 2.33 4.33 1.33 3.33 2.33 4.33 1.33 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
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