• # question_answer When $40{}^\circ C$ and $25{}^\circ C$ are the dry bulb temperatures of air entering and leaving a cooling coil, then the cooling coil temperature is $20{}^\circ C.$What is the bypass factor for the case of sensible cooling? A) 0.20                             B) 0.25C) 0.50                             D) 0.60

${{t}_{d1}}=40\,d{}^\circ C,$ ${{t}_{d2}}=25{}^\circ C,$ ${{t}_{d3}}=20{}^\circ C,$ $BPF=\frac{{{t}_{d2}}-{{t}_{d3}}}{{{t}_{d1}}-{{t}_{d3}}}=\frac{25-20}{40-20}=\frac{5}{20}=0.25$