Refrigeration and Air Conditioning
In a lithium bromide absorption refrigeration system

None of these
Water is used as a refrigerant and lithium bromide as an absorbent
Lithium bromide is used as a refrigerant and water as an absorbent
Ammonia is used as a refrigerant and lithium bromide as an absorbent

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Refrigeration and Air Conditioning
The bypass factor of a cooling coil decreases with

Increase in fin spacing and decrease in number of rows
Decrease in fin spacing and increase in number of rows
Increase in fin spacing and increase in number of rows
Decrease in fin spacing and decrease in number of rows

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Refrigeration and Air Conditioning
The bypass factor, in case of sensible cooling of air, is given by (where td₁ = Dry bulb temperature of air entering the cooling coil, td₂ = Dry bulb temperature of air leaving the cooling coil, and td₃ = Dry bulb temperature of the cooling coil)

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

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