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More viscous oil is used in summer than ...

More viscous oil is used in summer than in winterr in motors due to

A

rise in temperature in summer, the viscosity of oil decreases

B

rise in temperature in summer viscosity of oil increases

C

surface tension of oil increases

D

surface tension of oil decreases

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The correct Answer is:
A
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ALLEN-ELASTICITY, SURFACE TENSION AND FLUID MECHANICS-Exercise 1 (Fluid Statics)
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  2. An object of weight W has a uniform rectangular cross section of a x2a...

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  3. Streamline motion is that motion in which there is-

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  6. Water is flowing through a channel that is 12m wide with a speed of 0....

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  7. A U-tube of small and uniform cross section contains water of total le...

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  8. 16cm^(3) of water flows per second through a capillary tube of radius ...

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  9. The level of water in a tank is 5 high. A hole of area 1 cm^(2) is mad...

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  10. In the Fig. 15.5.2 below in shown the flow of liquid through a horizo...

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  11. The diagram (figure) shows a venturimeter, through which water is flow...

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  12. Water contained in a tank flows through an orifice of a diameter 2 cm ...

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  13. More viscous oil is used in summer than in winterr in motors due to

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  14. With increase in temperature , the viscosity of

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  15. A rain drop of radius 0.3 mm has a terminal velocity I air 1 ms^(-1)....

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  16. Two liquids of densities d(1) and d(2) are flowing in identical capill...

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  17. The velocity of falling rain drop attain limited value bacause of

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  18. The rate of flow of liquid through a capillary tube in an experiment t...

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  19. A copper ball of radius r travels with a uniform speed v in a viscous ...

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  20. Two drops , of the same radius , are falling through air with a steady...

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