Why is a metal rim heated to fix the wooden wheel in the cart?

question_answer Answers(2) The metallic rim used is slightly smaller in diameter than the wheels . On heating the rim expands. And can easily lie on the wheels. When the rim cools, it contract and press tightly on to the wheels.

Why does a blacksmith heat the iron rim before fitting it on wooden wheel?

When the iron rim is heated, it expands. It is fixed on the wooden wheel in its expanded state. When the temperature decreases, the rim again contracts, thus fitting completely onto the wheel.

How does a blacksmith fixes an iron rim on a wooden wheel explain?

To fit the ring on the wheel, it is heated so that its temperature rises by ΔT and it just steps over the wheel. As it cools down to surrounding temperature, it presses the semicircular parts together.

What will happen if you heat a metal rim?

Answer: The metal rim gets heated to fix it on to a cart because metal rims are made slightly smaller. On heating, the rim expands and fits on to the wheel. Then on cooling, the rim contracts and fits slightly on to the wheel.

What happened when iron rim is heated?

When iron metal is heated, it expands and forms into a circular shape. When the iron rim is heated, it expands and will have the same size as wooden wheels. When water is poured, the rims become cool and get compressed. Thus it can take the shape of the wooden wheel and gets fixed on the wheels firmly.

Why does a blacksmith heat a piece of iron what type of change is it?

A blacksmith first heats a piece of iron till it becomes red hot. Iron when heated and beaten it forms some shape and again heated it regain initial iron. Thus, this change is a reversible change.

What is iron rim?

Iron rim is made slightly smaller than the wooden wheel. The rim is usually heated before fixing into the wooden wheel, because on heating the iron rim. expands and fits onto the wooden wheel. contracts and fits onto the wooden wheel. no change in the size takes place.

Why does a blacksmith heat the metal ring to fix it on the cast ring?

A blacksmith heats the metal rim to fix it onto a cart wheel because a metal rim is made slightly smaller. On heating, the rim expands and fits onto the wheel. Then on cooling, the rim contracts and fits tightly onto the wheel.

What is a metal rim?

Metal rim is made slightly smaller than the wooden wheel. On heating rim expands and fits into wheel. Cold water is then poured over rim, which contracts and fits tightly onto the wheel.

When an iron rim is heated does it expand?

Metals expand on heating and contracts on cooling. This expansion and contraction of a metal is a reversible change. The iron rim used is smaller when compared to wooden wheel. The iron rim is heated so that it expands and when the size of the rim is larger than wooden wheel,the iron rim is slipped on the wooden wheel.

What happens when an iron piece is heated?

From the visible region of the electromagnetic spectrum, we know that in the order of decreasing wavelength we have red, orange, and yellow. This is why, upon heating, the iron piece first becomes dull red then becomes reddish yellow and finally turns to white-hot.