Q. The Darcy-Weisbach friction factor f which is a direct measure of resistance to flow in pipes depends on which of the following? (Solved)
1. Relative roughness, velocity and viscosity
2. Relative roughness, diameter and viscosity
3. Roughness height, diameter and velocity
4. Roughness height, diameter, velocity and kinematic viscosity.
- d. Roughness height, diameter, velocity and kinematic viscosity.