Question

oil is poured in the hinges of the doors to
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Answer 1

Answer:

Few drops of oil are poured on the hinges of a door, the door moves smoothly by reducing friction. Oil is a lubricant. it helps to reduce friction by being applied over the irregularities of a surface. So, there is no interlocking of irregularities, so, friction reduces, and the door moves smoothly.

Answer 2

Oil is poured in the hinges of the doors to make the movement smooth.

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