Question

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
(a) expands and fits onto the wooden wheel SVT ewentong
(b) contracts and fits onto the wooden wheel
(c) no change in the size takes place
(d) expands first, then on cooling contracts and fits onto the wooden wheel​

Answer 1

Answer:

(b) contacts and fits into the wooden wheel.

Answer 2

Answer:

expand first then on cooling contracts and fits on the the wooden wheel