Quiz on Hydrodynamics and Fluid Dynamics

What is an ideal fluid?

• A fluid that is compressible and has viscosity

• A fluid that is incompressible and has internal friction

• A fluid that can change density

• A fluid that is incompressible and has no internal friction

Which of the following is a characteristic of a viscous fluid?

• It is compressible

• It has no internal friction

• It has a large viscosity

• It flows readily

In which situation can the flow of a gas be considered incompressible?

• When the gas is at high pressure

• When the density remains constant

• When the gas is heated

• When the gas is in a vacuum

What does steady flow mean?

• The fluid does not flow

• The velocity of fluid particles is constant at any point

• The velocity of fluid particles changes over time

• The fluid is compressible

What is the equation of continuity based on?

• The conservation of energy

• The conservation of mass

• The conservation of momentum

• The conservation of volume

What does Bernoulli's equation relate?

• Pressure, flow speed, and height

• Pressure, temperature, and volume

• Density, flow speed, and viscosity

• Mass, velocity, and acceleration

What happens to fluid speed when the flow is horizontal according to Bernoulli's equation?

• Fluid speed increases with height

• Fluid speed remains constant

• Higher speeds are associated with lower pressures

• Higher speeds are associated with higher pressures

What is viscosity?

• The measure of a fluid's resistance to flow

• The measure of a fluid's density

• The measure of a fluid's temperature

• The measure of a fluid's pressure

What is Poiseuille's Law concerned with?

• The flow of ideal fluids

• The flow of viscous fluids

• The flow of gases

• The flow of incompressible fluids

What does the mass flow rate represent?

• Mass per unit volume

• Mass per unit time

• Volume per unit time

• Density per unit time