NEVADA C-2 ELECTRICAL CONTRACTOR
EXAM 2026 | PRACTICE QUESTIONS &
CORRECT ANSWERS WITH RATIONALES |
NEVADA C-2 CONTRACTOR LICENSE EXAM
PREP
NEVADA C-2 ELECTRICAL CONTRACTOR EXAM 2026 | PRACTICE QUESTIONS
WITH ANSWERS & RATIONALES
• This comprehensive practice exam contains 200 questions designed to prepare
candidates for the Nevada C-2 Electrical Contractor License exam, covering all
major topic areas tested.
• Study this material by working through questions systematically, reviewing
rationales to reinforce understanding of National Electrical Code principles and
Nevada-specific regulations.
1. What is the maximum voltage drop allowed on branch circuits according to
the NEC?
A) 2%
B) 3%
C) 5%
D) 7%
E) 10%
C) 5%
Rationale: The NEC Article 210 specifies that voltage drop on branch circuits should
not exceed 5%, and combined voltage drop on feeders and branch circuits should
not exceed 5% total. This ensures proper operation of electrical equipment and
prevents equipment damage from excessive voltage loss.
2. Which wire gauge is required for a 20-amp circuit in a residential dwelling?
,A) 12 AWG copper
B) 10 AWG copper
C) 14 AWG copper
D) 8 AWG copper
E) 6 AWG copper
A) 12 AWG copper
Rationale: NEC Table 310.16 requires minimum 12 AWG copper conductor for 20-
amp overcurrent protection. 14 AWG wire can only be used with 15-amp protection,
and using undersized wire with 20-amp breakers creates a serious fire hazard.
3. What is the minimum burial depth for direct burial cable in Nevada?
A) 6 inches
B) 12 inches
C) 18 inches
D) 24 inches
E) 30 inches
C) 18 inches
Rationale: NEC Article 300.5 specifies minimum burial depths for direct burial
cables. In areas subject to vehicular traffic or where cable protection is required, 18
inches is the standard minimum depth to prevent accidental damage from digging
or surface activities.
4. How many 15-amp branch circuits are required in a single family residence
kitchen?
A) One circuit
B) Two circuits
,C) Three circuits
D) Four circuits
E) Two small appliance branch circuits minimum
E) Two small appliance branch circuits minimum
Rationale: NEC Article 210.52(B) requires a minimum of two small appliance branch
circuits in the kitchen. These circuits serve countertop surfaces, refrigerator, and
other kitchen equipment, providing adequate power distribution and safety.
5. What is the ampacity of 2 AWG copper conductor at 60°C in free air?
A) 90 amps
B) 100 amps
C) 110 amps
D) 120 amps
E) 130 amps
D) 120 amps
Rationale: NEC Table 310.16 lists the ampacity of 2 AWG copper conductor with
60°C insulation at 120 amps in free air conditions. This value is used to determine
proper wire sizing for overcurrent protection.
6. Which method is approved for grounding equipment in wet locations?
A) Bare copper wire only
B) Aluminum conductor
C) Insulated green wire
D) Equipment grounding conductor in raceway
E) Ground rods only
, D) Equipment grounding conductor in raceway
Rationale: In wet locations, equipment grounding conductors must be run in
metallic raceways or approved cable assemblies to protect the conductor from
corrosion and moisture. Running bare conductors in wet areas violates NEC Article
250 requirements and creates safety hazards.
7. What is the maximum number of 90-degree bends allowed in conduit run
between pull points?
A) One bend
B) Two bends
C) Three bends
D) Four bends
E) Five bends
C) Three bends
Rationale: NEC Article 300.34 limits the number of 90-degree bends (or equivalent)
between pull points to three. This limitation prevents excessive pulling tension on
conductors during installation and maintenance.
8. What size bonding jumper is required for a 200-amp service?
A) 8 AWG copper
B) 6 AWG copper
C) 4 AWG copper
D) 2 AWG copper
E) 1/0 AWG copper
B) 6 AWG copper
EXAM 2026 | PRACTICE QUESTIONS &
CORRECT ANSWERS WITH RATIONALES |
NEVADA C-2 CONTRACTOR LICENSE EXAM
PREP
NEVADA C-2 ELECTRICAL CONTRACTOR EXAM 2026 | PRACTICE QUESTIONS
WITH ANSWERS & RATIONALES
• This comprehensive practice exam contains 200 questions designed to prepare
candidates for the Nevada C-2 Electrical Contractor License exam, covering all
major topic areas tested.
• Study this material by working through questions systematically, reviewing
rationales to reinforce understanding of National Electrical Code principles and
Nevada-specific regulations.
1. What is the maximum voltage drop allowed on branch circuits according to
the NEC?
A) 2%
B) 3%
C) 5%
D) 7%
E) 10%
C) 5%
Rationale: The NEC Article 210 specifies that voltage drop on branch circuits should
not exceed 5%, and combined voltage drop on feeders and branch circuits should
not exceed 5% total. This ensures proper operation of electrical equipment and
prevents equipment damage from excessive voltage loss.
2. Which wire gauge is required for a 20-amp circuit in a residential dwelling?
,A) 12 AWG copper
B) 10 AWG copper
C) 14 AWG copper
D) 8 AWG copper
E) 6 AWG copper
A) 12 AWG copper
Rationale: NEC Table 310.16 requires minimum 12 AWG copper conductor for 20-
amp overcurrent protection. 14 AWG wire can only be used with 15-amp protection,
and using undersized wire with 20-amp breakers creates a serious fire hazard.
3. What is the minimum burial depth for direct burial cable in Nevada?
A) 6 inches
B) 12 inches
C) 18 inches
D) 24 inches
E) 30 inches
C) 18 inches
Rationale: NEC Article 300.5 specifies minimum burial depths for direct burial
cables. In areas subject to vehicular traffic or where cable protection is required, 18
inches is the standard minimum depth to prevent accidental damage from digging
or surface activities.
4. How many 15-amp branch circuits are required in a single family residence
kitchen?
A) One circuit
B) Two circuits
,C) Three circuits
D) Four circuits
E) Two small appliance branch circuits minimum
E) Two small appliance branch circuits minimum
Rationale: NEC Article 210.52(B) requires a minimum of two small appliance branch
circuits in the kitchen. These circuits serve countertop surfaces, refrigerator, and
other kitchen equipment, providing adequate power distribution and safety.
5. What is the ampacity of 2 AWG copper conductor at 60°C in free air?
A) 90 amps
B) 100 amps
C) 110 amps
D) 120 amps
E) 130 amps
D) 120 amps
Rationale: NEC Table 310.16 lists the ampacity of 2 AWG copper conductor with
60°C insulation at 120 amps in free air conditions. This value is used to determine
proper wire sizing for overcurrent protection.
6. Which method is approved for grounding equipment in wet locations?
A) Bare copper wire only
B) Aluminum conductor
C) Insulated green wire
D) Equipment grounding conductor in raceway
E) Ground rods only
, D) Equipment grounding conductor in raceway
Rationale: In wet locations, equipment grounding conductors must be run in
metallic raceways or approved cable assemblies to protect the conductor from
corrosion and moisture. Running bare conductors in wet areas violates NEC Article
250 requirements and creates safety hazards.
7. What is the maximum number of 90-degree bends allowed in conduit run
between pull points?
A) One bend
B) Two bends
C) Three bends
D) Four bends
E) Five bends
C) Three bends
Rationale: NEC Article 300.34 limits the number of 90-degree bends (or equivalent)
between pull points to three. This limitation prevents excessive pulling tension on
conductors during installation and maintenance.
8. What size bonding jumper is required for a 200-amp service?
A) 8 AWG copper
B) 6 AWG copper
C) 4 AWG copper
D) 2 AWG copper
E) 1/0 AWG copper
B) 6 AWG copper
