Journeyman Electrician’s Exam Journeyman Electrician's GFCI and AFCI Protection 2

Question 1

Per NEC 210.8(A)(2), which condition provides an exception to GFCI protection for receptacles in attached dwelling unit garages?

Accepted Answer

Receptacles that are not readily accessible and supply only a single dedicated appliance

Answer

Receptacles used for electric vehicle chargers

Answer

Receptacles installed more than 6 feet from the floor

Answer

No exceptions exist — all garage receptacles require GFCI

Question 2

A combination-type AFCI breaker differs from a branch/feeder AFCI in that it provides protection against which arcing types?

Accepted Answer

Both series and parallel arcing faults

Answer

Parallel arcing faults only

Answer

Ground faults in addition to arc faults

Answer

Short circuits and overloads only

Question 3

GFCI protection for receptacles in commercial (other than dwelling) occupancies is required in which locations per NEC 210.8(B)?

Accepted Answer

Bathrooms, rooftops, kitchens within 6 feet of a sink, and outdoor locations

Answer

All interior office receptacles

Answer

Conference rooms and hallways only

Answer

Only locations within 3 feet of electrical panels

Question 4

What is the function of the RESET button on a GFCI receptacle?

Accepted Answer

It restores power to the outlet after the device has tripped

Answer

It tests the GFCI trip function to verify the device works

Answer

It increases the trip threshold during wet conditions

Answer

It disconnects downstream outlets from GFCI protection

Question 5

Per the 2020 NEC 210.12(A), AFCI protection in dwelling units must cover branch circuit outlets in which locations?

Accepted Answer

All 120-volt, 15 and 20-ampere branch circuit outlets throughout the entire dwelling unit

Answer

Bedrooms only

Answer

All areas except bathrooms and kitchens

Answer

Garages and outdoors only

Question 6

GFCI protection is required for receptacles installed within how many feet of the inside walls of a permanently installed swimming pool at a dwelling unit?

Accepted Answer

20 feet

Answer

6 feet

Answer

10 feet

Answer

15 feet

Question 7

When an AFCI circuit breaker trips due to an arcing fault, how is this typically distinguished from a thermal-magnetic overload or short circuit trip?

Accepted Answer

Most AFCI breakers have a separate indicator light or distinct button position indicating an arc fault trip

Answer

AFCIs trip to the same center position as overloads with no visual difference

Answer

AFCI breakers lock out permanently and require replacement after tripping

Answer

AFCI breakers produce an audible alarm only when tripped by an arc fault