Science, asked by seemapipadap8ktxg, 1 year ago

time taken to check each vehicle pollution check

Answers

Answered by quest2
1
Hii mate

Here is Ur answer

Generally the pollutants that are emitted by a petrol engine contains oxides of carbon, nitrogen and sulphur along with hydrocarbons and lead. But it is the quantity of carbon monoxide (CO) in the smoke which is checked for PUCC which stands for Pollution Under Control Certificate. This certificate is mandatory in India and it is renewed after every six months. Vehicles that have this certificate are not checked everytime. This certificate is issued only if smoke has less than 3% CO concentration. Generally it takes 7-10 minutes while checking.



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