Dynamic Fluid Mechanics Assessment

What does Bernoulli's Principle state about fluid flow?

• As the speed of a fluid increases, its pressure decreases.

• Higher pressure always leads to faster fluid flow.

• As the speed of a fluid decreases, its pressure increases.

• Fluid flow is independent of pressure changes.

In a closed system, if the velocity of a fluid increases, what happens to its pressure according to Bernoulli's Principle?

• The pressure decreases.

• The pressure increases.

• The pressure fluctuates randomly.

• The pressure remains constant.

Which of the following equations represents the Continuity Equation?

• A1V2 = A2V2

• A1V1 = A2V2

• A1V1 = A2V1

• A1 + A2 = V1 + V2

True or False: Fluid pressure increases with depth in a fluid at rest.

• Fluid pressure decreases with depth in a fluid at rest.

• Fluid pressure remains constant at all depths in a fluid at rest.

• Fluid pressure is only affected by temperature, not depth.

• True

What is the unit of pressure in the SI system?

• barometer

• atmosphere

• newton

• pascal

In a hydraulic system, if the area of the input piston is smaller than the output piston, what can be said about the force exerted?

• The output force is less than the input force.

• The input force is greater than the output force.

• The output force is greater than the input force.

• The forces are equal in magnitude.

True or False: The Continuity Equation applies only to incompressible fluids.

• False

• False, as it only applies to gases.

• True, because the Continuity Equation is only for liquids.

• True, since it is derived from the principles of thermodynamics.

Which of the following is an application of fluid dynamics?

• Thermodynamics in heat transfer

• Electromagnetism in circuit design

• Geology in rock formation analysis

• Aerodynamics in aircraft design

If a fluid is flowing through a pipe that narrows, what happens to the fluid's velocity?

• The fluid's velocity fluctuates randomly.

• The fluid's velocity increases.

• The fluid's velocity decreases.

• The fluid's velocity remains constant.

True or False: Hydraulic systems can multiply force.

• False

• Hydraulic systems can only decrease force.

• Hydraulic systems do not use fluids.

• True