Question

3. The iron blade of a spade is fixed to a wooden handle. Describe.

Answer 1

• The iron blade of spade has a ring in which wooden handle is fixed.
• The ring is slightly smaller in size than the wooden handle.
• The is heated to fix the handle, and it becomes slightly larger in size, this is called expansion.
• Now, the handle can easily fits into the ring.
• The ring contracts, when the iron cools down and fits tightly onto the handle.