What is the function Air heater in the boiler? / » Thermal Engineering 2 solved MCQs / By admin Question: What is the function Air heater in the boiler? A. preheat the air before entering the boiler B. recover the heat from flue gas C. heating of economizer tubes D. reheat the gas coming out of economizer Answer» b. recover the heat from flue gas Note: The above multiple-choice question is for all general and Competitive Exams in India.
