Residential HVAC Installation Practice Exam

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Where is a boot fitting typically used in a duct system?

  1. A. At the beginning of the main duct

  2. B. At the end of a supply register

  3. C. Between the condenser and the evaporator

  4. D. Between the branch duct and the supply register

The correct answer is: D. Between the branch duct and the supply register

A boot fitting is a type of duct transition that is typically used to connect a branch duct to a supply register. It is not used at the beginning of the main duct, as this is usually a larger duct and does not require a transition. It is also not used at the end of the supply register, as this is where the air is being discharged and no further transitions are needed. It is also not used between the condenser and evaporator, as this is a part of the HVAC system and does not involve the ductwork.

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