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Difficulty: EasyProperties of Fluids

Match each physical property of a fluid to its correct definition.

  • DensityThe mass of a fluid per unit of its volume.
  • Specific GravityThe ratio of a fluid's density compared to the density of pure water.
  • ViscosityA fluid's internal resistance to flowing.
  • CompressibilityThe measure of a fluid's volume decrease when placed under pressure.

Answer

Density matches 'The mass of a fluid per unit of its volume.' Specific Gravity matches 'The ratio of a fluid's density compared to the density of pure water.' Viscosity matches 'A fluid's internal resistance to flowing.' Compressibility matches 'The measure of a fluid's volume decrease when placed under pressure.'
Each fluid property has a distinct operational definition in mechanical systems: density is mass over volume, specific gravity compares that density to water, viscosity measures flow resistance, and compressibility measures volume change under pressure.

Step-by-Step Solution

1
Identify the definition of density.
Density is mapped to mass per unit volume.
This is a fundamental physical property of all matter that determines its weight for a given size.
2
Identify the definition of specific gravity.
Specific gravity is mapped to the ratio of a fluid's density to water.
It acts as a unitless multiplier comparing a fluid to a standard baseline.
3
Identify the definition of viscosity.
Viscosity is mapped to internal resistance to flow.
It dictates how easily fluids move through mechanical components like pipes and engines.
4
Identify the definition of compressibility.
Compressibility is mapped to how much volume decreases under pressure.
This property separates liquids (nearly incompressible) from gases (highly compressible) in hydraulic and pneumatic systems.

Key Concept

Foundational fluid properties determine how fluids behave and function in mechanical, hydraulic, and pneumatic applications.
Estimated Time:45s
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Topics

Properties of Fluids

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