Sources of pollution in automobile: There are four source of pollution in automobile a. Without controls carburetor. b. Fuel tank emit fuel vapor. c. Crankcase emit blow by emission. d. Tail pipe emit exhaust gases contain pollutants. The ways for controlling emission control: There are four ways for emission controlling and they are i. PCV (Positive crankcase ventilation) ii. Evaporative emission control iii. Exhaust after treatment iv. Catalytic converter
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