Fluid Dynamics and Flow Rate Quiz

What are the two main assumptions made about the fluid in the pipe?

• The fluid is incompressible and has no friction.

• The fluid is compressible and has friction.

• The fluid is incompressible and has friction.

• The fluid is compressible and has no friction.

Which two equations are used to solve for the velocities and flow rate in the pipe?

• Continuity equation and Newton's second law

• Bernoulli's law and the equation of state

• Continuity equation and Bernoulli's law

• Navier-Stokes equation and Bernoulli's law

What is the discharge velocity when the inlet pressure is 50 kPa and the outlet pressure is 45 kPa?

• 3.20 m/s

• 4.00 m/s

• 2.50 m/s

• 1.80 m/s

How does decreasing the diameter of the downstream pipe affect the fluid velocity and static pressure?

• Both fluid velocity and static pressure decrease.

• Both fluid velocity and static pressure increase.

• Fluid velocity increases and static pressure decreases.

• Fluid velocity decreases and static pressure increases.

What happens to the flow required to produce a particular pressure differential when fluid density decreases?

• Flow becomes zero.

• Less flow is required.

• More flow is required.

• Flow remains the same.