Question 44Motor Plants - QMED
70% to passWhich of the following statements concerning fire-tube boilers is correct?
ACombustion gases flow through the tubes.
BFlames impinge on the tubes.
CCombustion occurs in the tubes.
DWater flows through the tubes.
AI Explanation
The correct answer is A) Combustion gases flow through the tubes. In a fire-tube boiler, the combustion gases from the furnace flow through the tubes, which are surrounded by the water. This design allows the heat from the combustion gases to transfer to the water, generating steam. The other options are incorrect because: B) Flames do not impinge on the tubes, they heat the exterior of the tubes; C) Combustion occurs in the furnace, not inside the tubes; and D) Water does not flow through the tubes, it surrounds them.
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