1.5.1. GATE 2014 Question on Pipe Flow

Try these first

1. 1.

   Define 'velocity defect'.

   Hint

   Think about turbulence and its effects on flow.

2. 2.

   What are major losses in pipe flow?

   Hint

   Consider friction-related energy changes.

3. 3.

   What does the velocity defect refer to?

   • Average velocity of flow
   • Deviation from average velocity
   • Velocity increase under pressure

   Hint

   Consider the effect of turbulence on flow speeds.

4. 4.

   True or False: Minor losses are primarily due to friction.

   • True
   • False

   Hint

   Think about what contributes to minor losses.

5. 5.

   You have a horizontal pipe with a diameter of 0.5m and a length of 100m. If the head loss is found to be 5m, what is the average velocity of the water flowing through the pipe?

   Hint

   Use the relationship between velocity, head loss, and pipe dimensions.

6. 6.

   In a parallel pipe system where one pipe has a diameter twice that of the other, how does the flow rate compare if the head loss is equal in both pipes?

   Hint

   Think back to the principle of conservation of mass and balance equations.