Residential HVAC Installation Practice Exam

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Prepare for the Residential HVAC Installation Exam with this comprehensive quiz. Test your knowledge with multiple-choice questions and get ready to excel in your HVAC installation career.

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!

Practice this question and more.

Can friction due to air rubbing the walls of the ductwork be completely eliminated?

Yes
No
Depends on the duct material
Not enough information provided

The correct answer is: No

Friction in ductwork will always exist to some extent, regardless of the material used, due to the resistance of the air flowing through the ducts and the roughness of the duct walls. While certain duct materials may minimize friction to a certain degree, it cannot be completely eliminated. Therefore, option B is the most accurate choice. Option A is incorrect as it is not possible for friction to be completely eliminated. Option C is incorrect as the degree of friction reduction may vary depending on the material, but complete elimination is not possible. Option D is incorrect as the information provided in the question is sufficient to answer it.