Question

73
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
(1 Point)
Expands and fits onto the wooden
wheel
Contracts and fits onto the
wooden wheel
R No: 14
Expands first, then on cooling
contracts and fits onto the
wooden wheel.
Sch
Contracts first, then on cooling
expands and fits onto the wooden
wheel​

Answer 1

Explanation:

The iron rim expands and fixes to the wooden wheel and after cooling it contracts fixes tightly to the wooden wheel .