7.4.2. Control Volume Considerations

Try these first

1. 1.

   Define a control volume.

   Hint

   Think about regions in space.

2. 2.

   What does Pascal's Law state?

   Hint

   Consider how pressure acts in a balloon.

3. 3.

   What does Pascal's Law state?

   • Pressure in fluids is variable
   • Pressure is transmitted equally
   • Pressure acts in one direction

   Hint

   Think about how pressure spreads in a balloon.

4. 4.

   True or False: Hydrostatic pressure decreases with depth.

   • True
   • False

   Hint

   Recall the weight of fluid above.

5. 5.

   A cylindrical tank filled with water has a height of 10 m. Calculate the pressure at the bottom of the tank if the density of water is 1000 kg/m³.

   Hint

   Apply the formula for hydrostatic pressure.

6. 6.

   If a control volume with an inclined surface is subjected to a pressure of 150 kPa and the inclination is 30 degrees, calculate the horizontal and vertical force components.

   Hint

   Break the force down into components using trigonometric principles.