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What is critical velocity ? Write its eq...

What is critical velocity ? Write its equation.

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KUMAR PRAKASHAN-MECHANICAL PROPERTIES OF FLUIDS -SECTION-A Try Yourself (VSQs)
  1. If R(e)gt2000, then which type of flow exist ?

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  2. What is the value of Reynolds number for unsteady flow ?

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  3. What is critical velocity ? Write its equation.

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  4. Write a formula for critical velocity .

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  5. Give the limitations and uses of turbulence.

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  6. Give the limitations and uses of turbulence.

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  7. What are cohesive forces ?

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  8. Write the necessary condition for water drop to stick to glass .

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  9. What is called maximum distance for which the molecules can exert attr...

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  10. What is sphere of molecular action ?

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  11. Define surface of the liquid .

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  12. In what direction the force exert on the molecular of surface ? OR W...

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  13. Which molecule has more potential energy ?

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  14. For stability of system , what should be its potential energy ? More o...

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  15. As the area of surface is large then potentials energy of molecules ...

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  16. As the area of surface is small then potential energy of its molecule...

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  17. Why the surface of a liquid have tendency to minimize its area ?

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  18. The free surface of liquid has a tendency to contract . The property...

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  19. Give the definition of surface tension and formula in the context of (...

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  20. Give two practical illustrations of surface tension.

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