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- Subject
- Fluid Mechanicscivil-engineering-mcqs › fluid-mechanics
- Published
- 17 Jan 2019
- Last updated
- 28 May 2026
Explanation
For turbulent flow over a hydraulically smooth boundary, the friction factor is influenced only by the Reynolds number and not by the surface roughness. This is because the roughness elements are too small to affect the flow significantly, making option B the correct choice.
More Fluid Mechanics MCQs
Practice related questions from the same subject.
- 1.Which of the following statements about pipe roughness over time is accurate?
- 2.What is the correct unit used to measure kinematic viscosity?
- 3.The unit Pascal-second (Pa·s) is used to measure which of the following physical quantities?
- 4.What characteristics define an ideal fluid?
- 5.Given a fluid with a dynamic viscosity of 0.5 poise and a specific gravity of 0.5, what is its kinematic viscosity expressed in stokes?
- 6.How does the viscosity of a gas change as the temperature rises?
- 7.Newton’s law of viscosity establishes a relationship between which two quantities?
- 8.Where is the center of pressure located on a vertical plane surface submerged in a stationary fluid?
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