Question

Long Answer Type Question:
Explain how a metal rim slightly smaller than a wooden wheel can be fixed on it.

Answer 1

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

Cart Wheel with metal rim fixed on it