CFI Electrical Systems & Fire Safety Flashcards
6 cards from real CFI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CFI Electrical Systems & Fire Safety flashcards as text
What is the most common electrical cause of structure fires in the United States?
Answer: Faulty or deteriorated wiring
Faulty or deteriorated wiring is the leading electrical cause of structure fires in the United States according to fire statistics.
What does AFCI stand for in electrical fire safety?
Answer: Arc Fault Circuit Interrupter
An Arc Fault Circuit Interrupter (AFCI) detects dangerous arcing conditions in wiring that could cause fires and interrupts the circuit automatically.
What is the primary purpose of a GFCI outlet?
Answer: To protect against ground faults that can cause electrical shock
A Ground Fault Circuit Interrupter (GFCI) detects current leakage to ground and interrupts power rapidly to prevent electrical shock injuries.
What is 'electrical arcing'?
Answer: Current jumping between conductors, creating intense heat and sparks
Electrical arcing occurs when current jumps across a gap between conductors, generating intense heat that can ignite nearby combustible materials.
Which component in an electrical panel protects individual circuits from overcurrent?
Answer: Circuit breaker
Circuit breakers protect individual circuits by automatically interrupting power when current exceeds the breaker's rated ampacity.
Which NEC article covers general requirements for wiring methods and materials?
Answer: Article 300
NEC Article 300 covers general requirements for wiring methods and materials applicable to electrical installations throughout a building.