Fluids and Hydrostatics Quiz

What is the primary characteristic that defines a fluid?

• It has a fixed shape

• It can flow and take the shape of its container

• It is incompressible

• It has a high density

Which law describes the relationship between shear stress and shear rate in Newtonian fluids?

• Pascal's law

• Archimedes' principle

• Bernoulli's principle

• Newton's law of viscosity

In the context of fluid pressure, what does Pascal's law state?

• Pressure is constant in a moving fluid

• Pressure is inversely proportional to volume

• Pressure applied to a confined fluid is transmitted undiminished in all directions

• Pressure increases with depth in a fluid

What is the difference between ideal and real fluids?

• Real fluids flow in straight lines, ideal fluids do not

• Ideal fluids have no viscosity, real fluids have viscosity

• Ideal fluids have viscosity, real fluids do not

• Real fluids are incompressible, ideal fluids are compressible

How do you calculate the total pressure on a vertical surface submerged in a fluid?

• By applying Bernoulli's equation

• By multiplying the fluid density by the height of the fluid column

• By integrating the pressure over the surface area

• By using the formula P = F/A

What is the center of pressure on a submerged vertical surface?

• The point where the fluid velocity is highest

• The point where the resultant pressure force acts

• The centroid of the area

• The point where the pressure is maximum

Which type of manometer is used to measure the difference in pressure between two points?

• Hydrostatic manometer

• Differential manometer

• Simple manometer

• Barometer

What distinguishes Newtonian fluids from non-Newtonian fluids?

• Newtonian fluids have a constant viscosity, non-Newtonian fluids do not

• Non-Newtonian fluids are always compressible

• Newtonian fluids can only flow in one direction

• Non-Newtonian fluids have a fixed density

When measuring pressure using a manometer, what does a higher reading indicate?

• Lower pressure at the measurement point

• Higher pressure at the measurement point

• Lower fluid density

• Higher fluid density

In hydrostatics, how does the pressure change with depth in a fluid?

• It decreases linearly

• It increases linearly

• It increases with the square of the depth

• It remains constant