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Why machine parts becomes sticky in wint...

Why machine parts becomes sticky in winter ?

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As the tenoerature decreases in winter the coefficient of lubricating oil increases .Hence ,it becomes more dense , so parts of machines do not move easily ,So they becomes sticky.
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KUMAR PRAKASHAN-MECHANICAL PROPERTIES OF FLUIDS -SECTION -C (Objective Questions) (VSQs)
  1. Relation between poise and decapoise.

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  2. Hot liquid flow easily than cold liquid .Give reason .

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  3. Why machine parts becomes sticky in winter ?

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  4. Give two uses of Stoke's law.

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  5. Which one of the force does not depend on the velocity - frictional f...

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  6. The flow of water of river at banks is slow than at middle of river ....

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  7. Which falls faster , big rain drops or small rain drops ?

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  8. Why not rain drops do not posses greater velocity than some velocity ?

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  9. Why is dust particles settled down on floor in a closed room ?

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  10. Give an illustration of steady flow.

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  11. Explain Reynolds Number.

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  12. What is the value of Reynolds number for streamline flow ?

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

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  14. What is the value of Reynold's number for turbulent flow ?

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  15. What is inertial force ?

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  16. Which of the ratio of forces represents the Reynolds number Re ?

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  17. Why does fluid flow faster at a narrow tube ?

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  18. Which fundamental law forms the basis of equation of continuity ?

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  19. Which types of energies are present in streamline flow of fluid ?

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  20. Which fundamental law forms the basis of Bernoullis equation ?

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