Chemical Engineering > GATE 2017 > Friction Factor
The following table provides four sets of Fanning friction factor data, for different values of Reynolds number (Re) and roughness factor k/D.
Which of the above sets of friction factor data is correct?
| Set | f | Re = 102 | Re = 103 | Re = 105 | |||
|---|---|---|---|---|---|---|---|
| k/D = 0 | k/D = 0.001 | k/D = 0 | k/D = 0.001 | ||||
| Set I | f | 0.16 | 0.016 | 16×10−5 | 16×10−5 | ||
| Set II | f | 0.016 | 0.16 | 0.0055 | 0.0045 | ||
| Set III | f | 0.16 | 0.016 | 0.0045 | 0.0055 | ||
| Set IV | f | 0.0045 | 0.0055 | 0.016 | 0.16 | ||
Correct : c
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