9.2.4. Inverted U Tube Manometer

Try these first

1. 1.

   What does a manometer measure?

   Hint

   Think about what fluids and their heights tell us.

2. 2.

   What is the formula for calculating pressure in an inverted U-tube manometer?

   Hint

   Remember the components of the formula related to pressure and density.

3. 3.

   What is a primary function of an inverted U-tube manometer?

   • Measure temperature
   • Measure pressure
   • Measure volume

   Hint

   Recall the subject of fluid mechanics we're discussing.

4. 4.

   True or False: The manometric fluid in an inverted U-tube must always be denser than the working fluid.

   • True
   • False

   Hint

   Consider the implications of fluid weight on pressure readings.

5. 5.

   A hydraulic press measures a pressure of 150 kPa at point A. If the manometric fluid has a density of 850 kg/m^3 and the height difference measured is 0.2 m, what pressure is at point B if the atmospheric pressure is 101.3 kPa?

   Hint

   Apply the formula step by step and keep track of units.

6. 6.

   If an inverted U-tube uses water as the working fluid but bubble gum flavored soda as manometric fluid (with density 1100 kg/m^3), how would you find the pressure difference with a height of 0.15 m? Assume atmospheric pressure remains 101.3 kPa.

   Hint

   Watch out for density differences; they're key!