Question

when cold water is poured over a hot iron rim, it​

Answer 1

Answer:

The iron rims mounted on wooden wheel expand in summer due to heat. There is a possibility that iron rim may expand to such an extent that they may slip from wooden wheel. To prevent such a slippage, cold water is poured over the wheels which does not allow the rims to expand.

Answer 2

Answer:

The rim is made deliberately slightly smaller and when it is cold it doesn't fit. So it is heated and as a result it expands enough to then fit onto the wheel when it cools it shrinks and tightens up the entire structure of the wheel. Cooling the red hot tyre with water quickly stops it burning the wooden wheel

Explanation:

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