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

Question 1

Per NEC 210.8(A)(6), GFCI protection is required for receptacles in dwelling unit kitchens within what distance from the outside edge of a sink?

Accepted Answer

6 feet

Answer

NEC 210.8(A)(6) requires GFCI protection for receptacles within 6 feet of the outside edge of the kitchen sink.

Question 2

At approximately what current level does a standard GFCI device trip to protect against electric shock?

Accepted Answer

5 mA

Answer

Standard GFCI devices are designed to trip at approximately 4–6 mA (rated at 5 mA) to protect personnel against electrocution.

Question 3

Which type of AFCI circuit breaker is required by the 2020 NEC for dwelling unit branch circuits?

Accepted Answer

Combination type

Answer

The 2020 NEC requires combination-type AFCIs, which detect both series and parallel arcing faults on dwelling unit branch circuits.

Question 4

GFCI protection for all 125-volt, single-phase, 15 and 20-ampere receptacles is required in which of the following outdoor dwelling unit locations?

Accepted Answer

All outdoor receptacle locations

Answer

NEC 210.8(A)(3) requires GFCI protection for all 125-volt, single-phase, 15 and 20-ampere receptacles installed outdoors at dwelling units without exception for coverage.

Question 5

Where must the LINE terminals of a GFCI receptacle be connected?

Accepted Answer

To the source conductors coming from the panelboard

Answer

The LINE terminals of a GFCI receptacle must be connected to the conductors from the panelboard (supply side), while LOAD terminals feed downstream protected outlets.

Journeyman Electrician’s Exam Practice Test

Journeyman Electrician’s Exam Practice Test

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