To calculate the minimum number of 20-ampere branch circuits required in a dwelling, you should multiply the dwelling square footage by 3 volt-amperes to obtain total volt-amperes, divide by 120 volts to obtain the total amperes, and finally, ____.
A) multiply by 20 and round up to obtain the number of circuits
B) divide by 20 and round down to obtain the number of circuits
C) divide by 20 and round up to obtain the number of circuits
D) multiply by 20 and round down to obtain the number of circuits

Question

Quizplus · Accepted Answer

After obtaining the total amperes, we need to divide by 20 (which is the maximum ampere rating for a 20-amp branch circuit) and round up to the nearest whole number to obtain the minimum number of 20-amp branch circuits required in the dwelling.

To Calculate the Minimum Number of 20-Ampere Branch Circuits Required