18.6.1. GATE 2006 Example

Try these first

1. 1.

   Define conservation of momentum in your own words.

   Hint

   What happens to the total momentum if no external forces are present?

2. 2.

   What is laminar flow?

   Hint

   Think of how syrup flows compared to water.

3. 3.

   What is the main principle of conservation of momentum?

   • Mass can be created and destroyed
   • Total momentum is constant without external forces
   • Momentum varies with time in a closed system

   Hint

   Think about a closed box with no external forces.

4. 4.

   True or False: Laminar flow is the chaotic movement of fluids.

   • True
   • False

   Hint

   Consider how syrup flows compared with a turbulent river.

5. 5.

   Given a complex fluid system with intertwining pipes of different diameters, derive the overall flow rate using momentum conservation principles.

   Hint

   Check how diameters influence flow rates using the continuity equation.

6. 6.

   A fluid flows through a tapering pipe. Calculate the velocity at different sections under steady-state conditions.

   Hint

   Remember, A1V1 = A2V2 relates area and velocity at different cross-sections.