Boiler draught: primary objectives of producing draught List the functions served by draught in a steam generator, from air supply to gas discharge. Choose the correct option.
Mechanical Engineering
Steam Boilers and Engines
Difficulty: Easy
Choose an option
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AProvide adequate air for complete combustion of fuel
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BExhaust hot gases from the combustion chamber
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CDischarge flue gases to the atmosphere via the chimney
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DAll of the above
Answer
Correct Answer: All of the above
Explanation
ConceptDraught (natural via chimney or mechanical via fans/steam jet) creates the pressure differential to: • Supply sufficient combustion air, • Carry products of combustion through the passes, and • Discharge them safely to atmosphere.
Final AnswerAll of the above