When fluid is incompressible then________________?
Correct answer: C. The density of the fluid is constant
- A. The velocity of the fluid is constant
- B. The flow of the fluid is the straight line
- C. The density of the fluid is constant
- D. The volume of the fluid is constant
Explanation
An incompressible fluid has constant density, meaning its mass per unit volume does not change appreciably under the conditions considered. The likely mistake is choosing constant velocity, but incompressibility does not require the fluid speed to be the same everywhere.
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About Fluid Flow
Fluid flow covers pressure, density, viscosity and the motion of liquids and gases through pipes or open channels. It includes the continuity equation, Bernoulli equation, streamline and turbulent flow, and the effects of changing area, height and speed. Viscosity and ideal fluid assumptions must not be confused with pressure effects.
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