6. Fluid Mechanics

Question 1

Which energy types are conserved in a closed system?

Answer 1

• Kinetic
• Potential
• Work
• Internal energy
• Mechanical work
• Heat

Question 2

At what Reynolds number does laminar flow occur?

Answer 2

Re < 2000

Question 3

At what Reynolds number does turbulent flow occur?

Answer 3

Re > 4000

Question 4

When does a water hammer occur?

Answer 4

Overpressure during the rapid closure of valves