8.3.2. Pressure Variation in a Horizontal Plane

Try these first

1. 1.

   What happens to shear stress in a fluid at rest?

   Hint

   Think about what it means for a fluid to be stationary.

2. 2.

   Is pressure constant across horizontal surfaces in a fluid at rest?

   Hint

   Refer to the concept of hydrostatic equilibrium.

3. 3.

   What is the pressure variation with depth in a fluid?

   • A) It increases linearly with depth
   • B) It remains constant regardless of depth
   • C) It decreases with depth
   • D) It varies only horizontally

   Hint

   Refer back to the hydrostatic pressure equation.

4. 4.

   True or False: Gauge pressure is measured relative to absolute zero pressure (vacuum).

   • True
   • False

   Hint

   Think about the reference point for gauge pressure.

5. 5.

   A fluid column of height 10 m is in equilibrium. If the density of the fluid is 800 kg/m³, calculate the pressure at the base of the column.

   Hint

   Utilize the hydrostatic pressure formula.

6. 6.

   Consider a scenario where a tank filled with a fluid at a density of 1200 kg/m³ has a hole on the side 5 m above the bottom. Calculate the pressure at the hole.

   Hint

   Remember that pressure depends on the height of the fluid column above the point of measurement.