New York Master Electrician Exam
With Actual Questions & Verified
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1. The minimum size copper grounding electrode conductor required for a
200-amp service is:
A) 4 AWG
B) 6 AWG
C) 2 AWG
D) 8 AWG
A 200-amp service requires a 2 AWG copper grounding electrode
conductor per NEC Table 250.66.
2. What is the maximum allowable voltage drop for a branch circuit under
normal conditions?
A) 2%
B) 5%
C) 3%
D) 10%
The NEC recommends no more than a 3% voltage drop on branch
circuits for efficiency.
3. The National Electrical Code (NEC) is updated every:
A) 2 years
B) 3 years
C) 4 years
, D) 5 years
The NEC is revised and published every three years by the NFPA.
4. The required minimum burial depth for a PVC conduit under a residential
driveway is:
A) 12 inches
B) 18 inches
C) 24 inches
D) 30 inches
NEC Table 300.5 specifies 24 inches for PVC conduit under driveways.
5. The color used to identify the grounded (neutral) conductor is:
A) Green
B) White or gray
C) Black
D) Red
White or gray insulation is used for grounded conductors as per NEC
200.6.
6. When sizing overcurrent protection for a motor, the rating is typically
based on:
A) Wire size
B) Full-load current (FLC)
C) Locked-rotor current
D) Horsepower rating
Overcurrent devices for motors are based on the motor’s FLC from NEC
Table 430.250.
7. A receptacle installed in a kitchen countertop must be protected by:
A) AFCI
B) GFCI
C) Both AFCI and GFCI
D) Neither
Kitchen countertop receptacles require GFCI protection per NEC
210.8(A)(6).
8. The minimum working space in front of 480V electrical equipment is:
A) 2 feet
, B) 3 feet
C) 4 feet
D) 6 feet
NEC 110.26 requires a minimum of 3 feet clearance for 480V systems.
9. The neutral and ground must be bonded together:
A) In all subpanels
B) At the service disconnect only
C) In each panelboard
D) Never
Bonding occurs only at the service disconnect to prevent parallel paths
for current.
10.When aluminum conductors are used, connections should be:
A) Left uncoated
B) Coated with antioxidant compound
C) Over-torqued
D) Wrapped with electrical tape
Antioxidant compound prevents oxidation at aluminum terminations.
11.The ampacity of a 12 AWG copper conductor with THHN insulation at
75°C is:
A) 15A
B) 20A
C) 25A
D) 30A
Table 310.16 lists 25A for 12 AWG THHN at 75°C, but limited to 20A per
240.4(D).
12.Which of the following is a grounding electrode?
A) PVC conduit
B) Metal underground water pipe
C) Rigid nonmetallic conduit
D) THHN wire
Metal underground water pipes qualify as grounding electrodes per
NEC 250.52.
With Actual Questions & Verified
Answers,Plus Rationales/Expert
Verified For Guaranteed Pass Graded
A+/2026 /Latest Update/Instant
Download Pdf
1. The minimum size copper grounding electrode conductor required for a
200-amp service is:
A) 4 AWG
B) 6 AWG
C) 2 AWG
D) 8 AWG
A 200-amp service requires a 2 AWG copper grounding electrode
conductor per NEC Table 250.66.
2. What is the maximum allowable voltage drop for a branch circuit under
normal conditions?
A) 2%
B) 5%
C) 3%
D) 10%
The NEC recommends no more than a 3% voltage drop on branch
circuits for efficiency.
3. The National Electrical Code (NEC) is updated every:
A) 2 years
B) 3 years
C) 4 years
, D) 5 years
The NEC is revised and published every three years by the NFPA.
4. The required minimum burial depth for a PVC conduit under a residential
driveway is:
A) 12 inches
B) 18 inches
C) 24 inches
D) 30 inches
NEC Table 300.5 specifies 24 inches for PVC conduit under driveways.
5. The color used to identify the grounded (neutral) conductor is:
A) Green
B) White or gray
C) Black
D) Red
White or gray insulation is used for grounded conductors as per NEC
200.6.
6. When sizing overcurrent protection for a motor, the rating is typically
based on:
A) Wire size
B) Full-load current (FLC)
C) Locked-rotor current
D) Horsepower rating
Overcurrent devices for motors are based on the motor’s FLC from NEC
Table 430.250.
7. A receptacle installed in a kitchen countertop must be protected by:
A) AFCI
B) GFCI
C) Both AFCI and GFCI
D) Neither
Kitchen countertop receptacles require GFCI protection per NEC
210.8(A)(6).
8. The minimum working space in front of 480V electrical equipment is:
A) 2 feet
, B) 3 feet
C) 4 feet
D) 6 feet
NEC 110.26 requires a minimum of 3 feet clearance for 480V systems.
9. The neutral and ground must be bonded together:
A) In all subpanels
B) At the service disconnect only
C) In each panelboard
D) Never
Bonding occurs only at the service disconnect to prevent parallel paths
for current.
10.When aluminum conductors are used, connections should be:
A) Left uncoated
B) Coated with antioxidant compound
C) Over-torqued
D) Wrapped with electrical tape
Antioxidant compound prevents oxidation at aluminum terminations.
11.The ampacity of a 12 AWG copper conductor with THHN insulation at
75°C is:
A) 15A
B) 20A
C) 25A
D) 30A
Table 310.16 lists 25A for 12 AWG THHN at 75°C, but limited to 20A per
240.4(D).
12.Which of the following is a grounding electrode?
A) PVC conduit
B) Metal underground water pipe
C) Rigid nonmetallic conduit
D) THHN wire
Metal underground water pipes qualify as grounding electrodes per
NEC 250.52.
