Wrong move
Direct answer
The risky shortcut is turning off one breaker and assuming the shared neutral circuit is dead. Common disconnecting means helps ensure all ungrounded conductors sharing a neutral are de-energized together for safer service.
How to use this answer
Read the answer once, then prove it by choosing an answer in a practice question before looking at the explanation. If the miss repeats, tag the domain as Branch circuits and drill a smaller set before returning to mixed practice.
Prep path
Guide
Journeyman Electrician Study Guide
Independent journeyman electrician study guide for code navigation, calculations, wiring methods, and safety review.
SamplesJourneyman Electrician Sample Questions
Public Journeyman Electrician Practice Test sample questions with explanations.
PracticeOpen Journeyman Electrician Practice Test
Start with the 15-question free set before deciding whether to unlock the paid bank.