CFI CFI Electrical Systems & Fire Safety

Question 1

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

Accepted Answer

Faulty or deteriorated wiring

Answer

Lightning strikes

Answer

Overloaded extension cords

Answer

Improperly rated fuses

Question 2

What does AFCI stand for in electrical fire safety?

Accepted Answer

Arc Fault Circuit Interrupter

Answer

Automatic Fire Control Interface

Answer

Approved Fire Circuit Inspector

Answer

Arc Fire Current Indicator

Question 3

What is the primary purpose of a GFCI outlet?

Accepted Answer

To protect against ground faults that can cause electrical shock

Answer

To prevent circuit overloads from tripping breakers

Answer

To detect arc faults in concealed wiring

Answer

To monitor total electrical energy consumption

Question 4

What is 'electrical arcing'?

Accepted Answer

Current jumping between conductors, creating intense heat and sparks

Answer

The measurement of electrical resistance in a circuit

Answer

Proper grounding of electrical equipment to earth

Answer

Routine testing of circuit breaker function

Question 5

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

Accepted Answer

Circuit breaker

Answer

Ground wire

Answer

Neutral bus bar

Answer

Service entrance conductor

Question 6

Which NEC article covers general requirements for wiring methods and materials?

Accepted Answer

Article 300

Answer

Article 100

Answer

Article 210

Answer

Article 700