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Why is the surface tension of paints and...

Why is the surface tension of paints and lubricating oils kept low ?

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CHETANA PUBLICATION-MECHANICAL PROPERTIES OF FLUIDS-Exercise
  1. The relative velocity between two layers of fluid, separated by 0.4 mm...

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  2. Pascal's law is applied in which of the following cases?

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  3. Select and write the correct answer:- The energy stored in a soap bubb...

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  4. Select and write the correct answer:- Two capillary tubes of radii 0.1...

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  5. The dimensions of surface tension are

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  6. Water falls from a tap, down the streamline

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  7. State and explain Pascal 's law.

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  8. What is an incompressible fluid ?

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  9. How much amount of work is done in forming a soap bubble of radius r?

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  10. Why is the surface tension of paints and lubricating oils kept low ?

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  11. Why does velocity increase when water flowing in broader pipe enters a...

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  12. Define surface tension. Write down its units and dimension.

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  13. Find the pressure 200 m below the surface of the ocean if pressure on ...

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  14. With what velocity does water flow out of an orifice in a tank with ga...

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  15. What is Reynold's number.

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  16. Explain the working of an atomizer.

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  17. Derive an expression for coefficient of viscosity. State its SI unit a...

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  18. A drop of mercury of radius 0.2 cm is broken into 8 droplets of the sa...

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  19. Derive an expression for terminal velocity of solid falling through vi...

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  20. Distinguish between stream line flow and turbulent flow.

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