Which of the following statements indicates advantage of fluid friction?

Walking on road

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Rolling stone on carpet

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Lubricating machine parts

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None of the above

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Solution

The correct option is B Lubricating machine parts
Lubricating machine parts indicates advantage of fluid friction. This helps in lowering the friction and thus helps to keep parts of machinery in good condition for some time.

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Which of the following statements indicates advantage of fluid friction?

The correct option is B Lubricating machine partsLubricating machine parts indicates advantage of fluid friction. This helps in lowering the friction and thus helps to keep parts of machinery in good condition for some time.

The correct option is B Lubricating machine parts
Lubricating machine parts indicates advantage of fluid friction. This helps in lowering the friction and thus helps to keep parts of machinery in good condition for some time.