Understanding Fluid Mechanics Concepts

What is the primary characteristic that differentiates fluids from solids?

• Fluids can support shear stresses.

• Fluids are shapeless and take the shape of their container.

• Fluids have a fixed shape.

• Fluids are not subject to turbulence.

Which of the following is true about fluids when a force is applied?

• The pressure decreases.

• The pressure remains constant.

• The pressure increases.

• The fluid becomes solid.

What term is used to describe the study of gases and liquids and their physical behaviour?

• Solid mechanics

• Fluid dynamics

• Fluid mechanics

• Thermodynamics

Which of the following is NOT a characteristic of fluids?

• Fluids are viscous.

• Fluids resist shear forces.

• Fluids are subject to turbulence.

• Fluids are shapeless.

What type of fluid is described as incompressible?

• Pneumatic fluids

• Hydraulic fluids

• Gaseous fluids

• Turbulent fluids

Which type of fluid changes its volume when pressure is applied?

• Hydraulic fluids

• Solid fluids

• Pneumatic fluids

• Viscous fluids

What happens to a fluid when it is subjected to shear forces?

• It maintains its shape.

• It deforms and flows.

• It becomes solid.

• It evaporates.

Which of the following is an example of a hydraulic fluid?

• Air

• Water

• Helium

• Nitrogen

What is the term for the swirling motion that can occur in fluids?

• Compression

• Viscosity

• Turbulence

• Shear

Which of the following is a characteristic of pneumatic fluids?

• They are incompressible.

• They do not change volume under pressure.

• They are compressible.

• They are solid.