Refrigeration and Air Conditioning
Ammonia absorption refrigeration cycle requires

Very little work input
Nearly same work input as for vapour compression cycle
Zero work input
Maximum work input

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The bypass factor (B. P. F.) in case of sensible heating of air is (Where td₁ = Dry bulb temperature of air entering the heating coil, td₂ = Dry bulb temperature of air leaving the heating coil, and td₃ = Dry bulb temperature of heating coil)

(td₂ - td₃)/(td₃ - td₁)
(td₃ - td₂)/(td₃ - td₁)
(td₃ - td₁)/(td₃ - td₂)
(td₃ - td₁)/(td₂ - td₃)

ANSWER DOWNLOAD EXAMIANS APP

Refrigeration and Air Conditioning
The coefficient of performance of Electrolux refrigerator is the ratio of

Heat supplied by the gas burner minus the heat absorbed by the evaporator to the heat supplied by the gas burner
Heat absorbed by the evaporator to the heat supplied by the gas burner
Heat absorbed by the evaporator minus the heat supplied by the gas burner to the heat absorbed by the evaporator
Heat supplied by the gas burner to the heat absorbed by the evaporator

ANSWER DOWNLOAD EXAMIANS APP