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- Subject
- Fluid Mechanicscivil-engineering-mcqs › fluid-mechanics
- Published
- 17 Jan 2019
- Last updated
- 28 May 2026
Explanation
The viscosity of a gas increases with temperature because higher temperatures cause gas molecules to move more rapidly, leading to greater momentum exchange and thus higher viscosity. It does not decrease or remain unchanged with temperature, and pressure effects are minimal except under extreme conditions.
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.Newton’s law of viscosity establishes a relationship between which two quantities?
- 7.Where is the center of pressure located on a vertical plane surface submerged in a stationary fluid?
- 8.A vertical rectangular surface is submerged in water with its top edge 1.5 meters below the water surface and its bottom edge 6.0 meters below the surface. At what depth below the water surface is the center of pressure located?
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