Water-tube boiler is the one, in which _____________________?
Correct answer: A. Water passes through tubes and flue gases around it
- A. Water passes through tubes and flue gases around it
- B. Tube carrying hot flue gases are immersed in a pool of water
- C. Tubes are placed in vertical position
- D. None of these
- E. Answer: Option A
Explanation
In a water-tube boiler, water circulates inside the tubes while hot flue gases flow around their outer surfaces. This arrangement differs from a fire-tube boiler, where flue gas flows inside the tubes.
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