Choose the part which is common in all and helps to reduce friction.

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Q. Choose the part which is common in all and helps to reduce friction.

Of the following statements choose the correct combination that helps reduce friction:
A) Grease is used to reduce friction in bicycle chain
B) Ball bearings are used to reduced friction in a fan
C) Oil can be used to increase friction in a car engine
D) Talc can be used to reduce friction when an object is sliding on a surface.

Q. Choose the correct statement from the following:

1. Grease is used to reduce friction in the bicycle chain.
2. Ball bearings are used to reduce friction in a fan.
3. Oil is used to increase friction in car parts.
4. Talcum powder is used to reduce friction on a carrom board.

Q. Which of the following helps to reduce friction between two surfaces?

Which of these substances help us to reduce friction between the surfaces?

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