A homeowner complains that a newly installed bedroom outlet trips the breaker whenever a lamp is turned on. The panel has a dual-function AFCI/GFCI breaker. What is the most likely cause?
Answers
AA shared neutral or ground fault is triggering the AFCI/GFCI protection
BThe breaker is sized too small for a bedroom
CThe receptacle is installed upside down
DThe lamp is drawing more than 20 amps
Correct answer: A — A shared neutral or ground fault is triggering the AFCI/GFCI protection
Dual-function breakers are sensitive to arc faults and ground faults. A shared neutral or slight ground leakage will cause them to trip immediately upon load.
MIFOTRA exam practicealigned to NFPA 70 / IEC 60364·1 mark·Easy