A home run scrim arrangement involves how many doubles?

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

Answer: (B)

In a home run scrim arrangement, the idea is to provide two separate, complete paths for the circuit from the source to the first point of use. This requires two pairs of conductors running together—the two doubles—so you have a dedicated feed plus a return path for proper current flow and balance. Having two doubles ensures the circuit can carry the load effectively and allows for the needed continuity if one leg is opened or loaded differently. Using only one pair would not supply both paths, while adding more than two usually isn’t required for this setup, making two the standard and correct count.