Higher furnace temperature can not be achieved by use of a lean fuel gas in the furnace by

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Higher furnace temperature can not be achieved by use of a lean fuel gas in the furnace by Answer: Increasing the draft in the furnace. preheating the fuel gas.

Question context

This question is part of ⚗️ Chemical Engineering within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.