Question

Why metal rim of wooden wheel is made smaller in size

Answer 1

Metal Rim of wooden wheel is made smaller in size because, when it is heated it expands  and becomes bigger than the Wooden Wheel. when this expanded Metal Rim is put over the Wooden Wheel and Cold Water is poured over it, The Metal Rim has a Tight Fitting.

Answer 2

Answer:

metal dream of will is made smaller insize because when it is heated it and becomes then woodinville