‘Safe limit’ called Threshold Limit Value (TLV) of carbon monoxide in atmospheri

MCQ Practice

'Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the

Subject: Chemical EngineeringTopic: Environmental Engineering In Ce

Industrial chimney exhaust

Automobiles exhaust

Photochemical reaction in polluted atmosphere

Burning of domestic fuel

Correct Answer: B