Fire-tube boilers: firing arrangement for typical designs Determine whether common fire-tube boilers are internally or externally fired, based on furnace location. Choose the correct option.
Mechanical Engineering
Steam Boilers and Engines
Difficulty: Easy
Choose an option
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AInternally fired
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BExternally fired
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CInternally as well as externally fired (both equally common)
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DNone of these
Answer
Correct Answer: Internally fired
Explanation
ConceptFire-tube boilers such as Cornish, Lancashire, Scotch marine, and locomotive typically have the furnace inside the shell, i.e., are internally fired. Water surrounds the furnace and tubes within the shell.
Final AnswerInternally fired