A) 0.20
B) 0.25
C) 0.50
D) 0.60
Correct Answer: B
Solution :
\[{{t}_{d1}}=40\,d{}^\circ C,\] \[{{t}_{d2}}=25{}^\circ C,\] \[{{t}_{d3}}=20{}^\circ C,\] \[BPF=\frac{{{t}_{d2}}-{{t}_{d3}}}{{{t}_{d1}}-{{t}_{d3}}}=\frac{25-20}{40-20}=\frac{5}{20}=0.25\]You need to login to perform this action.
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