When the iron blade is fixed to the wooden handle of tools, it is fitted by _______.

heating followed by cooling

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cooling followed by heating

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only heating

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only freezing

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Solution

The correct option is A heating followed by cooling
The iron blade of tools has a ring in which the wooden handle is fixed. Normally, the ring is slightly smaller in size than the wooden handle. To fix the handle, the ring is heated and it becomes slightly larger in size (expands). Now, the handle easily fits into the ring. When the ring cools down it contracts and fits tightly on to the handle.

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Similar questions

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Q. The iron blade has a ring in which the wooden handle is fixed. The ring is slightly smaller in size than the wooden handle.
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