Questions: Draft is the movement of combustion air into the boiler furnace for combustion and carries the spent gasses (flue gas) out of the boiler furnace.

Draft is the movement of combustion air into the boiler furnace for combustion and carries the spent gasses (flue gas) out of the boiler furnace.
Transcript text: Draft is the movement of combustion air into the boiler furnace for combustion and carries the spent gasses (flue gas) out of the boiler furnace.
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Solution

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Solution Steps

Step 1: Understand the Question

The question is asking for the term that describes the movement of combustion air into the boiler furnace for combustion and the removal of spent gases (flue gas) out of the boiler furnace.

Step 2: Analyze the Options

Let's analyze each option to determine which one fits the description:

  • (A) Flow: This is a general term for movement of fluid, but it does not specifically refer to the process described.
  • (B) Draft: This term specifically refers to the movement of air or gases in and out of a furnace or boiler.
  • (C) Turbulence: This refers to chaotic changes in pressure and flow velocity, not specifically the process described.
  • (D) Convection: This is the transfer of heat by the movement of fluid, but it does not specifically refer to the process described.
Step 3: Select the Correct Answer

Based on the analysis, the term that best fits the description of moving combustion air into the boiler furnace and carrying the spent gases out is "Draft."

Final Answer

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