Black smoke coming out of the chimney of a furnace is an indication of the use o

MCQ Practice

Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace.

Subject: Chemical EngineeringTopic: Environmental Engineering In Ce

Low amount of excess combustion air

Large quantity of excess combustion air

Hydrocarbon fuel

Pulverised coal as fuel

Correct Answer: A