NCFET Advanced · CET-2 · Diagnostics, Electronics & Troubleshooting

When measuring a standard North American 120V outlet with a multimeter, what approximate AC voltage reading should you expect?

  • A12V DC
  • B110–125V AC
  • C220–240V AC
  • D5V DC

Correct Answer

110–125V AC

Explanation

Standard North American single-phase residential outlets supply 110–125V AC (nominal 120V). Commercial equipment may require 208V or 240V on separate dedicated circuits.

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