When fluid is incompressible, the quantity is constant.
Correct answer: B. Density
- A. Mass
- B. Density
- C. Pressure
- D. Force
Explanation
In an incompressible fluid, particles have a constant density. An incompressible fluid is defined as one whose density does not change on applying pressure; it's an ideal liquid and does not exist in real life.
This question appeared on the UHS MDCAT 2016 paper, which you can sit online with every answer explained.
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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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