9.1.6. Summary

Try these first

1. 1.

   What is a manometer used for?

   Hint

   Think about how pressure is defined.

2. 2.

   Name one type of manometer.

   Hint

   Recall the simplest form of a manometer.

3. 3.

   What does a manometer measure?

   • Pressure
   • Temperature
   • Flow Rate

   Hint

   Think about its primary function.

4. 4.

   True or False: Differential manometers only measure absolute pressure.

   • True
   • False

   Hint

   Consider what 'differential' implies.

5. 5.

   A U-tube manometer has two different liquids, one of density 800 kg/m³ and another of 1200 kg/m³. If the heights of the two liquids are 10 m and 5 m respectively, calculate the pressure difference between the two points it measures.

   Hint

   Remember to apply P = ρgh for each fluid.

6. 6.

   Suppose a differential manometer connected to two points in a pipe system indicates a height difference of 0.3 m of water. Calculate the pressure difference in pascals assuming the density of water is 1000 kg/m³.

   Hint

   Use the hydrostatic equation well to relate height and pressure.