Question

Expansion on heating can be a nuisance. Explain giving two example

Answer 1

1. In the summer wires expand due to heat making them loose thus making loss of power more common

2.Expanding of train tracks which leads to derailing of the train, that is why fish plates are added in the tracks to help prevent this

hope this helped :D

Answer 2

Answer:

Examples of nuisance of thermal expansion :

1 ) Due to high temperature in hot summer , the railway rails may expand and change thier shape to irregular shape . Thismay cause derailment of trains which travel on the track .

2 ) Due to high temperature in hot summer , cement floors or walls may give cracks due to uneven expansion.