Question

worn out tyres are replaced by new tyres in motor vehicle . give reason
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Answer 1

Answer:

The chief reason for tire replacement is friction from moving contact with road surfaces, causing the tread on the outer perimeter of tires to eventually wear away. When the tread depth becomes too shallow (less than 4/32 in, or 3.2 mm), the tire is worn out and should be replaced.

Answer 2

QUESTION:-

Why are the Tyres with worn out surface replaced?

ANSWER:-

It is also necessary to check if there are any unusual bulges or bubbles present in a tyre 's sidewall. This indicates that the tyre's internal frame is damaged and cracked which causes the air pressure to reach its outer layers. In such cases, it is vital to replace it immediately as it is no longer safe for use.

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