3.3. Differential Manometers

Try these first

1. 1.

   What is the function of a differential manometer?

   Hint

   Think about how pressure is measured in a fluid system.

2. 2.

   What does gauge pressure mean?

   Hint

   Focus on the difference from standard atmospheric conditions.

3. 3.

   What is the primary purpose of a differential manometer?

   • To measure atmospheric pressure
   • To measure pressure difference
   • To measure vapor pressure

   Hint

   Think about its application in fluid systems.

4. 4.

   True or False: Gauge pressure includes atmospheric pressure.

   • True
   • False

   Hint

   Consider what gauge means in measurement terms.

5. 5.

   A fluid system has a differential manometer connected to two points with pressures of 300 kPa and 150 kPa. Calculate the height of the liquid column if the liquid's density is 12 g/cm³.

   Hint

   Don’t forget to convert your units properly!

6. 6.

   In an isothermal process, a differential manometer connected to a gas line reads 400 kPa and another point 200 kPa. Explain how to determine the height of gas represented in this manometer.

   Hint

   Remember the principles of ideal gas behavior.