NYC ELECTRICIAN EXAM PRACTICE QUESTIONS
COMPLETE WITH 100% VERIFIED ANSWERS
1. What is the minimum size copper equipment grounding conductor
required for a 100-ampere overcurrent device?
A) 8 AWG
B) 10 AWG
C) 6 AWG
D) 4 AWG
Answer: A) 8 AWG
Explanation: According to NEC Table 250.122, a 100-ampere overcurrent
device requires a minimum 8 AWG copper equipment grounding
conductor.
2. The maximum number of conductors in a conduit before derating is
required is?
A) 3
B) 4
C) 6
D) 10
Answer: A) 3
,Explanation: NEC 310.15(B)(3)(a) requires ampacity adjustment when
more than 3 current-carrying conductors are installed in a raceway or
cable.
3. Receptacles installed in a dwelling unit garage must be at least what
height above the floor?
A) 12 inches
B) 18 inches
C) 24 inches
D) No requirement
Answer: B) 18 inches
Explanation: NEC 210.52(G)(1) requires garage receptacle outlets to be
installed at a height of at least 18 inches above the floor.
4. The minimum burial depth for rigid metal conduit (RMC) under a
driveway is?
A) 6 inches
B) 12 inches
C) 18 inches
D) 24 inches
Answer: D) 24 inches
Explanation: NEC Table 300.5 requires 24 inches minimum cover for
RMC under driveways and parking areas.
,5. What is the maximum allowable voltage drop for a branch circuit?
A) 2%
B) 3%
C) 5%
D) 10%
Answer: B) 3%
Explanation: NEC 210.19(A)(1) FPN No. 4 recommends 3% maximum
voltage drop for branch circuits.
6. The maximum distance between supports for nonmetallic sheathed
cable (NM) in horizontal runs is?
A) 2.5 feet
B) 3 feet
C) 4.5 feet
D) 6 feet
Answer: C) 4.5 feet
Explanation: NEC 334.30 requires horizontal runs of NM cable to be
supported at intervals not exceeding 4.5 feet.
7. A 20-ampere branch circuit can supply a maximum of how many
receptacles?
A) 8
B) 10
, C) 13
D) Unlimited
Answer: D) Unlimited
Explanation: NEC 210.23(A) does not limit the number of receptacles on
a 20-ampere branch circuit; it depends on the load calculation.
8. Service entrance conductors must have a minimum clearance of
how many feet above a swimming pool?
A) 10 feet
B) 12.5 feet
C) 15 feet
D) 22.5 feet
Answer: D) 22.5 feet
Explanation: NEC 680.8 requires service conductors above a swimming
pool to have a minimum clearance of 22.5 feet.
9. Where must the main bonding jumper be located?
A) At the meter
B) At the service disconnect
C) At each subpanel
D) At the transformer
Answer: B) At the service disconnect
Explanation: NEC 250.28 requires the main bonding jumper to be
located at the service disconnect enclosure.
COMPLETE WITH 100% VERIFIED ANSWERS
1. What is the minimum size copper equipment grounding conductor
required for a 100-ampere overcurrent device?
A) 8 AWG
B) 10 AWG
C) 6 AWG
D) 4 AWG
Answer: A) 8 AWG
Explanation: According to NEC Table 250.122, a 100-ampere overcurrent
device requires a minimum 8 AWG copper equipment grounding
conductor.
2. The maximum number of conductors in a conduit before derating is
required is?
A) 3
B) 4
C) 6
D) 10
Answer: A) 3
,Explanation: NEC 310.15(B)(3)(a) requires ampacity adjustment when
more than 3 current-carrying conductors are installed in a raceway or
cable.
3. Receptacles installed in a dwelling unit garage must be at least what
height above the floor?
A) 12 inches
B) 18 inches
C) 24 inches
D) No requirement
Answer: B) 18 inches
Explanation: NEC 210.52(G)(1) requires garage receptacle outlets to be
installed at a height of at least 18 inches above the floor.
4. The minimum burial depth for rigid metal conduit (RMC) under a
driveway is?
A) 6 inches
B) 12 inches
C) 18 inches
D) 24 inches
Answer: D) 24 inches
Explanation: NEC Table 300.5 requires 24 inches minimum cover for
RMC under driveways and parking areas.
,5. What is the maximum allowable voltage drop for a branch circuit?
A) 2%
B) 3%
C) 5%
D) 10%
Answer: B) 3%
Explanation: NEC 210.19(A)(1) FPN No. 4 recommends 3% maximum
voltage drop for branch circuits.
6. The maximum distance between supports for nonmetallic sheathed
cable (NM) in horizontal runs is?
A) 2.5 feet
B) 3 feet
C) 4.5 feet
D) 6 feet
Answer: C) 4.5 feet
Explanation: NEC 334.30 requires horizontal runs of NM cable to be
supported at intervals not exceeding 4.5 feet.
7. A 20-ampere branch circuit can supply a maximum of how many
receptacles?
A) 8
B) 10
, C) 13
D) Unlimited
Answer: D) Unlimited
Explanation: NEC 210.23(A) does not limit the number of receptacles on
a 20-ampere branch circuit; it depends on the load calculation.
8. Service entrance conductors must have a minimum clearance of
how many feet above a swimming pool?
A) 10 feet
B) 12.5 feet
C) 15 feet
D) 22.5 feet
Answer: D) 22.5 feet
Explanation: NEC 680.8 requires service conductors above a swimming
pool to have a minimum clearance of 22.5 feet.
9. Where must the main bonding jumper be located?
A) At the meter
B) At the service disconnect
C) At each subpanel
D) At the transformer
Answer: B) At the service disconnect
Explanation: NEC 250.28 requires the main bonding jumper to be
located at the service disconnect enclosure.
