Question

Expansion on heating can be a a nuisance explain giving two examples

Answer 1

Answer:

Examples of nuisance of thermalexpansion : 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 .

Explanation:

Answer 2

Answer:-

Expansion due to heating can be a nuisance. This is explained below with the help of the following examples:

1. Railway tracks are made up of iron which expands during the summers. Hence, if no gap is left between two conjoined tracks, they will bend and result into serious accidents.
2.  A steel bridge also expands during the summers. This is the reason why one end of a steel bridge is fixed and the other rested on rollers with enough space on its front to allow it to expand easily. If this is not done, it will only cause serious damage to the bridge.