Which statement is true about the minimum number of branch circuits needed for receptacle outlets in a detached garage with electric power?

• A. Two
• B. One
• C. Three
• D. Four

Answer: (B)

Garage receptacle outlets are required to be on a 20-amp branch circuit, and a single 20-amp circuit can feed all the receptacles in a detached garage. Therefore, the minimum number of branch circuits needed to supply receptacle outlets in a detached garage is one. You could add more circuits if you want to separate loads or reduce nuisance tripping, but it isn’t required by the minimum rule. (Other parts of the garage electrical system, like lighting or dedicated tools, may have their own circuit considerations, but for receptacles alone, one 20-amp circuit covers the minimum.)