9.1.2. Applications of Fluid at Rest

Try these first

1. 1.

   What is a manometer used for?

   Hint

   Think about pressure measurement devices you have studied.

2. 2.

   What is the simplest type of manometer?

   Hint

   Remember the basic type of a manometric device.

3. 3.

   What does a manometer measure?

   • Velocity
   • Length
   • Pressure
   • Volume

   Hint

   Think about fluid dynamics and what needs to be measured.

4. 4.

   True or False: An inclined manometer is used only for measuring high pressures.

   • True
   • False

   Hint

   Remember the purpose of inclination.

5. 5.

   A liquid with a density of 800 kg/m³ is in a U-tube manometer. If the height difference observed is 15 cm, calculate the pressure difference in Pascals.

   Hint

   Use the formula for hydrostatic pressure.

6. 6.

   An inclined manometer has a 30° angle and measures a height of 20 cm. Calculate the effective height to be considered for pressure calculations.

   Hint

   Remember basic trigonometry: h_sin(angle) gives vertical height.