5.1.2. Bernoulli's Equation: Problems Solving on Black Board

Try these first

1. 1.

   Define Bernoulli's equation in your own words.

   Hint

   Consider energy conservation principles.

2. 2.

   Explain what is meant by a control volume.

   Hint

   Think about analyzing fluids at a specific location.

3. 3.

   What does Bernoulli's equation represent?

   • Energy conservation in fluids
   • Momentum conservation
   • Pressure loss only

   Hint

   Think about the energies involved in the fluid's flow.

4. 4.

   True or False: The pressure inside a building can be lower than the external pressure during a cyclone.

   • True
   • False

   Hint

   Consider how wind behaves relative to structures.

5. 5.

   Calculate the upward force on a flat roof exposed to wind speeds of 150 km/h. The atmospheric pressure is 101325 Pa.

   Hint

   Convert wind speed to m/s and use pressure difference calculations.

6. 6.

   A pipe with radius R has a liquid flowing at speed V1. If the radius is halved, what is the new speed?

   Hint

   Consider the relationship of areas and impacts on velocity.