General Studies · Fluid Mechanics
Which of the following statements is INCORRECT regarding the friction factor used in Darcy-Weisbach equation for pipe flow?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The value of friction factor depends on the relative roughness of the pipe surface in fully rough turbulent regions.
- 2The value of friction factor depends on the Reynolds number of the flow in laminar regions.
- 3Friction factor value is the same for all fluid flow conditions.✓
- 4Friction factor is a dimensionless quantity.
Correct answer
Friction factor value is the same for all fluid flow conditions.
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