Red Seal Plumbing Practice Exam

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What is the BTU value of an EDR for steam?

  1. 100 BTU/hr

  2. 150 BTU/hr

  3. 200 BTU/hr

  4. 240 BTU/hr

The correct answer is: 240 BTU/hr

The BTU value of an EDR (Equivalent Direct Radiation) for steam refers to the amount of heat needed to raise one pound of water by one degree Fahrenheit in an hour. This is typically measured in thousands, so 240 BTU/hr means that it takes 240,000 BTU/hr to raise one pound of water by one degree Fahrenheit. Therefore, options A, B, and C are incorrect as they are lower values and would not be enough to effectively heat the water.

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