Question

Explain how a metal rim slightly smaller than the wooden wheel can be fixed on it ?

Answer 1

Answer:

The metal rim is always made slightly smaller than the wooden wheel. On heating, the rim expands and fit onto the wheel. Cold water is then poured over the rim. Due to cooling the metal rim contracts and fits tightly onto the wheel.

Answer 2

$\huge{\underline{\boxed{\mathrm{Answer}}}}$

The metal rim is always made slightly smaller than the wooden wheel. On heating, the rim expands and fit onto the wheel. Cold water is then poured over the rim. Due to cooling the metal rim contracts and fits tightly onto the wheel.