Question

Friction factor in flow through conduit is analogous to ————— in flow around submerged objects.

• A. Shape factor
• B. Roughness factor
• C. Drag coefficient
• D. Shear stress

Hint:

In fluid dynamics, both friction factor and drag coefficient measure the resistance caused by friction, whether in pipe flow or around objects submerged in the flui(D)

Answer 1

The Correct Option is C

The friction factor in flow through a conduit is analogous to the drag coefficient in flow around submerged objects. Both parameters are used to quantify the resistance to flow due to friction in the respective systems. 
Conclusion: The drag coefficient is the correct analogy as both represent the resistance to flow in their respective systems.