NEVADA C-2 ELECTRICAL CONTRACTOR EXAM AND
PRACTICE EXAM NEWEST 2026/ 2027 TEST BANK /
ELECTRICAL CONTRACTOR LICENCE EXAM PREP
WITH COMPLETE 300 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED
A+ (MOST RECENT!!)
A commercial service has a 400-A disconnect located outdoors. The
feeder conductors enter a separate interior distribution section. The
grounded conductor is isolated from the equipment grounding
conductors downstream of the service disconnect. What condition is
required at the downstream panel?
A. Neutral bonded to enclosure
B. Neutral isolated from enclosure
C. Grounding conductor omitted
D. Bonding jumper doubled - Correct Answer - B
Downstream of the service disconnect, the grounded conductor must
remain isolated from equipment grounding conductors and enclosures.
A Nevada contractor installs a 120/208-V, three-phase panel serving
continuous lighting loads. The calculated continuous load is 36 A.
Which minimum branch-circuit rating is appropriate when no other
adjustment applies?
A. 40 A
B. 45 A
pg. 1
,C. 50 A
D. 60 A - Correct Answer - A
Continuous loads are calculated at 125%, giving 45 A; the next
permitted standard rating is 50 A.
A motor disconnect is installed within sight of industrial equipment but
is mounted 25 feet away. The equipment nameplate requires a
disconnecting means that is readily accessible. Which concern is most
significant?
A. Conductor color
B. Raceway fill
C. Disconnect location
D. Motor rotation - Correct Answer - C
The disconnecting means must satisfy applicable accessibility and
location requirements.
A 480-V feeder passes through a metal junction box. The equipment
grounding conductor enters and leaves the box, but the box is not
bonded. What deficiency exists?
A. Excess conductor length
B. Missing box bonding
C. Incorrect phase sequence
D. Excessive circuit voltage - Correct Answer - B
pg. 2
,Metal boxes and enclosures must be properly bonded to the equipment
grounding path.
A rooftop installation in southern Nevada uses metallic raceway exposed
to intense sunlight. The conductor ampacity was calculated using the
normal table value without considering ambient temperature correction.
Which issue is most likely?
A. Undersized grounding electrode
B. Excessive conduit fill
C. Missing temperature adjustment
D. Improper phase identification - Correct Answer - C
Elevated ambient temperature can require conductor ampacity
adjustment.
A 120-V branch circuit supplies several receptacles in a commercial
space. The measured voltage at the panel is normal, but voltage drops
substantially when a portable load is connected at the farthest receptacle.
Which condition is most likely?
A. Excessive conductor impedance
B. Oversized equipment grounding conductor
C. Excessive grounding electrode resistance
D. Reversed service conductors - Correct Answer - A
Significant voltage drop under load commonly indicates excessive
circuit impedance from conductor length, size, or connections.
pg. 3
, A service upgrade increases the available fault current at a distribution
panel. Existing equipment has a lower interrupting rating than the newly
calculated available fault current. What must be addressed?
A. Lighting control type
B. Conductor insulation color
C. Equipment SCCR or AIC rating
D. Raceway support spacing - Correct Answer - C
Overcurrent protective devices and equipment must have adequate
interrupting or short-circuit ratings for the available fault current.
A contractor installs four current-carrying conductors in a raceway along
with a grounding conductor. The neutral carries only the imbalance of a
three-wire, single-phase circuit. How is the neutral generally treated for
conductor-adjustment purposes?
A. Always counted
B. Never permitted
C. Counted twice
D. Usually not counted - Correct Answer - D
A neutral carrying only the imbalance of a multiwire circuit is generally
not counted as a current-carrying conductor.
A 240-V heater is rated at 9,600 W. Ignoring other factors,
approximately what current does the heater draw?
A. 30 A
pg. 4
PRACTICE EXAM NEWEST 2026/ 2027 TEST BANK /
ELECTRICAL CONTRACTOR LICENCE EXAM PREP
WITH COMPLETE 300 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED
A+ (MOST RECENT!!)
A commercial service has a 400-A disconnect located outdoors. The
feeder conductors enter a separate interior distribution section. The
grounded conductor is isolated from the equipment grounding
conductors downstream of the service disconnect. What condition is
required at the downstream panel?
A. Neutral bonded to enclosure
B. Neutral isolated from enclosure
C. Grounding conductor omitted
D. Bonding jumper doubled - Correct Answer - B
Downstream of the service disconnect, the grounded conductor must
remain isolated from equipment grounding conductors and enclosures.
A Nevada contractor installs a 120/208-V, three-phase panel serving
continuous lighting loads. The calculated continuous load is 36 A.
Which minimum branch-circuit rating is appropriate when no other
adjustment applies?
A. 40 A
B. 45 A
pg. 1
,C. 50 A
D. 60 A - Correct Answer - A
Continuous loads are calculated at 125%, giving 45 A; the next
permitted standard rating is 50 A.
A motor disconnect is installed within sight of industrial equipment but
is mounted 25 feet away. The equipment nameplate requires a
disconnecting means that is readily accessible. Which concern is most
significant?
A. Conductor color
B. Raceway fill
C. Disconnect location
D. Motor rotation - Correct Answer - C
The disconnecting means must satisfy applicable accessibility and
location requirements.
A 480-V feeder passes through a metal junction box. The equipment
grounding conductor enters and leaves the box, but the box is not
bonded. What deficiency exists?
A. Excess conductor length
B. Missing box bonding
C. Incorrect phase sequence
D. Excessive circuit voltage - Correct Answer - B
pg. 2
,Metal boxes and enclosures must be properly bonded to the equipment
grounding path.
A rooftop installation in southern Nevada uses metallic raceway exposed
to intense sunlight. The conductor ampacity was calculated using the
normal table value without considering ambient temperature correction.
Which issue is most likely?
A. Undersized grounding electrode
B. Excessive conduit fill
C. Missing temperature adjustment
D. Improper phase identification - Correct Answer - C
Elevated ambient temperature can require conductor ampacity
adjustment.
A 120-V branch circuit supplies several receptacles in a commercial
space. The measured voltage at the panel is normal, but voltage drops
substantially when a portable load is connected at the farthest receptacle.
Which condition is most likely?
A. Excessive conductor impedance
B. Oversized equipment grounding conductor
C. Excessive grounding electrode resistance
D. Reversed service conductors - Correct Answer - A
Significant voltage drop under load commonly indicates excessive
circuit impedance from conductor length, size, or connections.
pg. 3
, A service upgrade increases the available fault current at a distribution
panel. Existing equipment has a lower interrupting rating than the newly
calculated available fault current. What must be addressed?
A. Lighting control type
B. Conductor insulation color
C. Equipment SCCR or AIC rating
D. Raceway support spacing - Correct Answer - C
Overcurrent protective devices and equipment must have adequate
interrupting or short-circuit ratings for the available fault current.
A contractor installs four current-carrying conductors in a raceway along
with a grounding conductor. The neutral carries only the imbalance of a
three-wire, single-phase circuit. How is the neutral generally treated for
conductor-adjustment purposes?
A. Always counted
B. Never permitted
C. Counted twice
D. Usually not counted - Correct Answer - D
A neutral carrying only the imbalance of a multiwire circuit is generally
not counted as a current-carrying conductor.
A 240-V heater is rated at 9,600 W. Ignoring other factors,
approximately what current does the heater draw?
A. 30 A
pg. 4
