Question

Q) Expansion on heating can be a nuisance.

Answer 1

Answer:

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Explanation:

Examples of nuisance of thermal expansion : 1 ) Due. This may cause derailment of trains which travel on the track . This can be prevented by leaving small space between successive rails . 2 ) Due to high temperature in hot summer , cement floors or walls may give cracks .

Answer 2

Examples :

• This may cause derailment of trains which can travel on the track . This can prevent by leaving small space between successive rails .
• Due to high temperature in hot temperature in summer , cement floors or walls may give cracks .