MCQ PracticeFuel economy in furnaces can be achieved bySubject: Chemical EngineeringTopic: Furnace TechnologyAUsing oxygen enriched combustion airBPreheating the combustion airCReducing the heat loss through furnace openings & doorsDAll of the aboveCorrect Answer: DPractice QuizBack to MCQsRelated MCQsHe said to her, “Don’t read so fast.”He said to his servant, “Why are you so lazy today?”Pinki said to Gaurav, “Will you help me in my work just now?”