Question

Which one of the follflowing is correct?

(a) Darcy-Weisbach’s formula is generally used for head loss in flow through both pipes and open channels

(b) Chezy’s formula is generally used for head loss in flow through both pipes and open channels

(c) Darcy-Weisbach’s formula is generally used for head loss in flow through both pipes and Chezy’s formula for open channels

(d) Chezy’s formula is generally used for head loss in flow through both pipes and Darcy-Weisbach’s formula for open channels

This question was posed to me during an internship interview.

The question is from Loss of Energy in Pipes topic in division Flow Through Pipes of Fluid Mechanics

Answer 1

Right answer is (c) Darcy-Weisbach’s formula is generally used for head loss in flow through both pipes and Chezy’s formula for open channels

The explanation: Darcy-Weisbach’s formula is generally used for head loss in flow through both pipes as it takes into consideration the flow velocity whereas Chezy’s formula is used for open channels as it considers the pressure difference.