18.6. Examples in GATE Examinations

Try these first

1. 1.

   Define conservation of momentum in your own words.

   Hint

   Think about scenarios where forces are applied or removed.

2. 2.

   What is a fixed control volume?

   Hint

   Consider how control volumes differ when they move with the fluid.

3. 3.

   What does the Reynolds Transport Theorem relate?

   • Momentum change to mass flow
   • Mass change to volume flow
   • Momentum change to control volume flow

   Hint

   Focus on the concept of integrating effects over a volume.

4. 4.

   True or False: Steady flow conditions imply that fluid properties change over time.

   • True
   • False

   Hint

   Think about what 'steady' signifies regarding flow.

5. 5.

   A tank holds water and has three outlets at different heights. If the inflow is constant, derive the equations governing the flow out of each outlet considering pressure effects from height differences.

   Hint

   Analyze how height impacts pressure and therefore flow rate.

6. 6.

   Consider a scenario in a hydraulic system where fluid density varies significantly from point to point due to temperature differences. How would conservation of momentum apply in this scenario?

   Hint

   Think about how temperature affects density and flow behavior.