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Mountaineers suffer from nose bleeding (...

Mountaineers suffer from nose bleeding (nostril ) at higher altitudes.

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As height increases , atmospheric pressure decreases .Atmospheric pressure at mountain is low .Whereas the pressure of blood is unchanged Walls of nose arteries are thin .They cannot tolerate pressure of blood and they breaks and the blood flows.
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KUMAR PRAKASHAN-MECHANICAL PROPERTIES OF FLUIDS -SECTION -C (Objective Questions) (VSQs)
  1. Explain that you can't make a decent cup of tea up on a mountain ?

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  2. When air plane fly at higher altitude it is not right to keep a founta...

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  3. Mountaineers suffer from nose bleeding (nostril ) at higher altitudes.

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  4. It is difficult to heal wound on mountain.

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  5. Straws are used to take soft drinks . Why ?

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  6. Explain why are water storage dam walls thicker at the bottom.

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  7. Why does an air bubble form in water grow in size from bottom when it ...

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  8. Why is mercury used in a barometer ?

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  9. What are difficulties arised by using water in a barometer instead of ...

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  10. What does it mean when a height of a barometer is falling ?

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  11. What does it mean when a height of a barometer is rising ?

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  12. A barometer kept in a elevator accelerating upwards with acceleration ...

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  13. A barometer kept in an elevator accelerating downwards with accelerat...

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  14. What is buoyant force ?

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  15. Why does a ship made of iron float while a piece of iron sinks in wate...

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  16. A person is sitting in aboat floating in a lake . This person fills a ...

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  17. A container of liquid is free fall without flyout of liquid is this co...

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  18. When two corks , one small and one big are taken into a vessel filled ...

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  19. Why is it easier to swim in sea water than in river water ?

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  20. When stirring by spoon is stop in a milk , it become at rest after s...

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