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)

Answer: Option B

The bypass factor, in case of sensible cooling of air, is given by $$\frac{\text{t}{\text{d}}_2-\text{t}{\text{d}}_3}{\text{t}{\text{d}}_1-\text{t}{\text{d}}_3}$$
Where,
td₁ = Dry bulb temperature of air entering the cooling coil,
td₂ = Dry bulb temperature of air leaving the cooling coil,
td₃ = Dry bulb temperature of the cooling coil