CFI CFI Electrical Systems & Fire Safety 1

Question 1

What is the most common electrical cause of structure fires in the United States?

Accepted Answer

Faulty or deteriorated wiring

Answer

Faulty or deteriorated wiring is the leading electrical cause of structure fires in the United States according to fire statistics.

Question 2

What does AFCI stand for in electrical fire safety?

Accepted Answer

Arc Fault Circuit Interrupter

Answer

An Arc Fault Circuit Interrupter (AFCI) detects dangerous arcing conditions in wiring that could cause fires and interrupts the circuit automatically.

Question 3

What is the primary purpose of a GFCI outlet?

Accepted Answer

To protect against ground faults that can cause electrical shock

Answer

A Ground Fault Circuit Interrupter (GFCI) detects current leakage to ground and interrupts power rapidly to prevent electrical shock injuries.

Question 4

What is 'electrical arcing'?

Accepted Answer

Current jumping between conductors, creating intense heat and sparks

Answer

Electrical arcing occurs when current jumps across a gap between conductors, generating intense heat that can ignite nearby combustible materials.

Question 5

Which component in an electrical panel protects individual circuits from overcurrent?

Accepted Answer

Circuit breaker

Answer

Circuit breakers protect individual circuits by automatically interrupting power when current exceeds the breaker's rated ampacity.

(CFI) Certified Fire Inspector Practice Test

(CFI) Certified Fire Inspector Practice Test

CFI CFI Electrical Systems & Fire Safety 1