Previous NEC Code Questions Practice Test-15

NEC_PRACTICE NEC 2026

NEC 2026 Practice Test - GFCI Scope (Article 210.8)

Practice questions on the GFCI changes introduced in the 2026 NEC. Covers 210.8(A) dwelling locations, 210.8(B) other-than-dwelling outlets, 210.8(F) outdoor outlets near services, and the appliance GFCI rules in 422.5.

TOPICS COVERED

GFCI Protection

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This NEC 2026 Practice Test - GFCI Scope (Article 210.8) has 25 questions with detailed answers and NEC references. Take the full test, review every wrong answer, and look up the NEC article it references before moving on.

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Topics covered: All NEC chapters — branch circuits, grounding, conductors, wiring methods, motors, and more.
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Questions: 25 multiple-choice, one correct answer each

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NEC 2026 Practice Test - GFCI Scope (Article 210.8) — Question List

Question 1: Per the 2026 NEC, all 125-volt through 250-volt receptacles supplied by single-phase branch circuits rated 150 volts or less to ground in a dwelling unit garage must be protected by which device?

AFCI only
GFCI
Surge protective device
No protection required for 250V outlets

NEC Reference: NEC 2026 — 210.8(A)(2)

Question 2: Under the 2026 NEC, GFCI protection is required for outdoor outlets at dwelling units that are within how many feet of the outside edge of an outdoor swimming pool, hot tub, or spa?

6 feet
10 feet
15 feet
20 feet

NEC Reference: NEC 2026 — 210.8 / 680.22(A)(4)

Question 3: A homeowner installs a 240-volt receptacle in an unfinished basement to serve a workshop. Per the 2026 NEC, is GFCI protection required?

No, 240-volt outlets in basements are exempt
Yes, GFCI protection is required
Only if the receptacle is within 6 feet of a sink
Only if the basement is finished

NEC Reference: NEC 2026 — 210.8(A)(5)

Question 4: For a one-family dwelling, the 2026 NEC requires GFCI protection on all outdoor outlets supplied by single-phase branch circuits rated 150 volts to ground or less and 50 amperes or less. Which of the following outdoor outlets is NOT covered by this rule?

A 20A 125V receptacle on the rear porch
A 30A 250V receptacle for a portable EV charger
A hard-wired soffit lighting outlet
A 50A 240V receptacle for a hot tub disconnect

NEC Reference: NEC 2026 — 210.8(F)

Question 5: Per the 2026 NEC 422.5(A), which of the following appliances does NOT require GFCI protection on its branch circuit when installed in a dwelling unit?

Dishwasher
Electric clothes dryer
Fixed electric baseboard wall heater
Electric range

NEC Reference: NEC 2026 — 422.5(A)

Question 6: The 2026 NEC requires GFCI protection for receptacles within how many feet of the top inside edge of a sink in a dwelling kitchen?

3 feet
6 feet
8 feet
10 feet

NEC Reference: NEC 2026 — 210.8(A)(7)

Question 7: A commercial kitchen prep area has a single-phase 208V receptacle for a countertop mixer. Per the 2026 NEC 210.8(B), is GFCI protection required?

No, 208V is above the 125V scope
Yes, GFCI is required
Only if the receptacle is within 6 feet of a sink
Only if rated 30A or higher

NEC Reference: NEC 2026 — 210.8(B)(2)

Question 8: A dwelling unit laundry area has a 125V 20A receptacle 4 feet from the laundry sink. Per the 2026 NEC, what protection is required for this receptacle?

AFCI only
GFCI
No protection — outside the 6-foot radius
Surge protection only

NEC Reference: NEC 2026 — 210.8(A)(10)

Question 9: In the 2026 NEC, for an indoor commercial damp or wet location with a 30A 277V single-phase receptacle, which protection is required?

GFCI is required by 210.8(B)
210.8(B) does not require GFCI for a 277V outlet
AFCI is required instead
Both AFCI and GFCI are required

NEC Reference: NEC 2026 — 210.8(B)

Question 10: When a single GFCI device protects multiple receptacles on a feeder or branch circuit, the 2026 NEC requires what marking at the protected outlets?

No marking is required as long as the GFCI itself is labeled
A marking that reads "GFCI Protected"
A red dot on the cover plate
Only the panel directory needs an entry

NEC Reference: NEC 2026 — 406.4(D)

Question 11: A 125V 20A receptacle is installed in a dwelling pantry within 6 feet of the kitchen sink. Per the 2026 NEC, what protection is required?

No protection — the pantry is not the kitchen
GFCI
AFCI only
Tamper-resistant only

NEC Reference: NEC 2026 — 210.8(A)(7)

Question 12: The 2026 NEC 210.8(A) lists which of the following dwelling locations as requiring GFCI for 125V through 250V receptacles?

Hallways
Crawl spaces at or below grade
Bedrooms
Living rooms

NEC Reference: NEC 2026 — 210.8(A)

Question 13: A receptacle for an electric drinking fountain in a school corridor is supplied by a single-phase 125V branch circuit. Per the 2026 NEC, what protection is required?

AFCI only
GFCI
No special protection
Surge protection only

NEC Reference: NEC 2026 — 210.8(B)(8)

Question 14: Where GFCI protection is provided by a circuit breaker in the panel, the 2026 NEC requires the test button to:

Be operable without removing covers or equipment
Be hidden behind a security plate
Be operable only with a key
Be operable only after de-energizing the circuit

NEC Reference: NEC 2026 — 210.8 / Product Listing

Question 15: Per the 2026 NEC, a 125V receptacle installed at the rear of a refrigerator that is built into a kitchen counter cabinet must be:

GFCI protected
Exempt because it serves a fixed appliance
Exempt if behind a built-in cabinet
Surge-protected only

NEC Reference: NEC 2026 — 210.8(A)(6)

Question 16: Per the 2026 NEC, GFCI protection is required for receptacles installed in dwelling unit boathouses regardless of:

Whether the boathouse is enclosed or open
Only when the receptacle is below the dock surface
Only when the boathouse is unheated
Only on shore-power outlets above 30A

NEC Reference: NEC 2026 — 210.8(A)(8)

Question 17: Per the 2026 NEC, a sump pump receptacle in a dwelling unit unfinished basement must be:

Exempt because it serves a single appliance
GFCI protected
Exempt if labeled "DEDICATED"
AFCI protected only

NEC Reference: NEC 2026 — 210.8(A)(5)

Question 18: A 240V receptacle for a heat-pump water heater is installed in a dwelling utility room. Per the 2026 NEC, GFCI protection is required if the receptacle is:

Behind the appliance and unreachable
A storage-type or heat-pump water heater listed under 422.5
Smaller than 30A only
Hard-wired without a plug

NEC Reference: NEC 2026 — 422.5(A)

Question 19: A self-contained GFCI receptacle that has reached the end of its useful life will, per UL 943 and the 2026 NEC, do which of the following on a TEST button press?

Always trip — TEST is mechanical
May not trip; the device should already be in end-of-life mode and refuse RESET
Trip only if the load is energized
Trip the upstream breaker instead

NEC Reference: NEC 2026 — 210.8 / UL 943

Question 20: GFCI for a personnel-protection receptacle trips at a maximum ground-fault current of approximately:

4 to 6 milliamperes
20 milliamperes
30 milliamperes
100 milliamperes

NEC Reference: NEC 2026 — 210.8 / UL 943

Question 21: In the panel schedule shown, circuits 7 and 8 are labeled "Bath Recep (GFCI)". Per the 2026 NEC, which item below correctly states the requirement for these circuits?

40-circuit residential 200A panel schedule with bathroom receptacle circuits labeled GFCI on circuits 7 and 8

A single 15A circuit may serve all bathrooms in the dwelling without GFCI
Each bathroom receptacle outlet must be GFCI and supplied by a 20A branch circuit
Bathroom receptacles do not need GFCI if they are within 6 ft of the sink
A 20A circuit may serve bathroom receptacles plus other rooms without restriction

NEC Reference: NEC 2026 — 210.8(A)(1) / 210.11(C)(3)

Question 22: In the panel schedule shown, circuits 9 and 10 are "Laundry (GFCI)" and "Garage Recep (GFCI)". Per the 2026 NEC, which statement correctly summarizes the GFCI requirement for these locations?

Panel schedule showing laundry and garage receptacle circuits both labeled with GFCI protection

GFCI is required only when the receptacle is within 6 ft of a sink
GFCI is required for all 125V–250V single-phase receptacles up to 50A in both locations
GFCI is required only on the garage circuit, not the laundry
Neither location requires GFCI

NEC Reference: NEC 2026 — 210.8(A)(2) and 210.8(A)(10)

Question 23: A 125V receptacle for a freezer is the only outlet on a 20A branch circuit and is installed in a dwelling garage. Per the 2026 NEC, may the freezer receptacle omit GFCI protection?

Yes, dedicated-appliance receptacles are exempt
No, GFCI is still required
Yes, but only if labeled "FREEZER"
Yes, if installed below 18 inches above the floor

NEC Reference: NEC 2026 — 210.8(A)(2)

Question 24: Per the 2026 NEC, the GFCI requirement for a swimming pool pump motor branch circuit is established in:

Article 210.8 only
Article 680, 680.21(C)
Article 250 grounding requirements
It is not required by the NEC

NEC Reference: NEC 2026 — 680.21(C)

Question 25: Per the 2026 NEC, where a feeder supplies multiple branch circuits and feeder-type GFCI protection is used, the GFCI device must be:

Located only at the service equipment
Sized to protect every downstream branch and listed for the use
Limited to feeders 100A or less
Permitted only on residential occupancies

NEC Reference: NEC 2026 — 215.9

NEC 2026 Practice Test - GFCI Scope (Article 210.8)

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NEC 2026 Practice Test - GFCI Scope (Article 210.8)

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Student Reviews

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NEC 2026 Practice Test - GFCI Scope (Article 210.8) — Question List

Question 1: Per the 2026 NEC, all 125-volt through 250-volt receptacles supplied by single-phase branch circuits rated 150 volts or less to ground in a dwelling unit garage must be protected by which device?

Question 2: Under the 2026 NEC, GFCI protection is required for outdoor outlets at dwelling units that are within how many feet of the outside edge of an outdoor swimming pool, hot tub, or spa?

Question 3: A homeowner installs a 240-volt receptacle in an unfinished basement to serve a workshop. Per the 2026 NEC, is GFCI protection required?

Question 4: For a one-family dwelling, the 2026 NEC requires GFCI protection on all outdoor outlets supplied by single-phase branch circuits rated 150 volts to ground or less and 50 amperes or less. Which of the following outdoor outlets is NOT covered by this rule?

Question 5: Per the 2026 NEC 422.5(A), which of the following appliances does NOT require GFCI protection on its branch circuit when installed in a dwelling unit?

Question 6: The 2026 NEC requires GFCI protection for receptacles within how many feet of the top inside edge of a sink in a dwelling kitchen?

Question 7: A commercial kitchen prep area has a single-phase 208V receptacle for a countertop mixer. Per the 2026 NEC 210.8(B), is GFCI protection required?

Question 8: A dwelling unit laundry area has a 125V 20A receptacle 4 feet from the laundry sink. Per the 2026 NEC, what protection is required for this receptacle?

Question 9: In the 2026 NEC, for an indoor commercial damp or wet location with a 30A 277V single-phase receptacle, which protection is required?

Question 10: When a single GFCI device protects multiple receptacles on a feeder or branch circuit, the 2026 NEC requires what marking at the protected outlets?

Question 11: A 125V 20A receptacle is installed in a dwelling pantry within 6 feet of the kitchen sink. Per the 2026 NEC, what protection is required?

Question 12: The 2026 NEC 210.8(A) lists which of the following dwelling locations as requiring GFCI for 125V through 250V receptacles?

Question 13: A receptacle for an electric drinking fountain in a school corridor is supplied by a single-phase 125V branch circuit. Per the 2026 NEC, what protection is required?

Question 14: Where GFCI protection is provided by a circuit breaker in the panel, the 2026 NEC requires the test button to:

Question 15: Per the 2026 NEC, a 125V receptacle installed at the rear of a refrigerator that is built into a kitchen counter cabinet must be:

Question 16: Per the 2026 NEC, GFCI protection is required for receptacles installed in dwelling unit boathouses regardless of:

Question 17: Per the 2026 NEC, a sump pump receptacle in a dwelling unit unfinished basement must be:

Question 18: A 240V receptacle for a heat-pump water heater is installed in a dwelling utility room. Per the 2026 NEC, GFCI protection is required if the receptacle is:

Question 19: A self-contained GFCI receptacle that has reached the end of its useful life will, per UL 943 and the 2026 NEC, do which of the following on a TEST button press?

Question 20: GFCI for a personnel-protection receptacle trips at a maximum ground-fault current of approximately:

Question 21: In the panel schedule shown, circuits 7 and 8 are labeled "Bath Recep (GFCI)". Per the 2026 NEC, which item below correctly states the requirement for these circuits?

Question 22: In the panel schedule shown, circuits 9 and 10 are "Laundry (GFCI)" and "Garage Recep (GFCI)". Per the 2026 NEC, which statement correctly summarizes the GFCI requirement for these locations?

Question 23: A 125V receptacle for a freezer is the only outlet on a 20A branch circuit and is installed in a dwelling garage. Per the 2026 NEC, may the freezer receptacle omit GFCI protection?

Question 24: Per the 2026 NEC, the GFCI requirement for a swimming pool pump motor branch circuit is established in:

Question 25: Per the 2026 NEC, where a feeder supplies multiple branch circuits and feeder-type GFCI protection is used, the GFCI device must be:

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