Red Seal Plumbing Practice Exam

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Elevate your plumbing career with our Red Seal Plumbing Exam quiz. Crafted to test and enhance your knowledge, ensuring you're fully prepped for success. Dive in now!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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An outside fresh air supply must be installed at least how many inches above finished grade level?

The correct answer is: 12

Fresh air supply must be installed at least 12 inches above finished ground level to ensure proper ventilation and prevent any potential fire hazards. Options A, B, and D are incorrect as they do not provide the necessary clearance for proper air flow and safety measures. Additionally, choosing an option that is too low may result in the fresh air supply getting covered or obstructed by debris or vegetation, making it less effective. Option C is also the most commonly recommended distance by building codes and industry standards. Therefore, 12 inches is the ideal height for an outside fresh air supply.