EE99 ELECTRICAL CONTRACTOR UNLIMITED
EXAM LATEST 2026 VERSION WITH 100
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+||BRAND NEW VERSION!!
1. Which type of conductor insulation is rated for high temperatures?
A. THWN
B. XHHW
C. NM-B
D. UF-B
XHHW insulation is designed for high temperature environments, up to 90°C
in wet or dry locations.
2. The primary purpose of a grounding electrode conductor is to:
A. Carry current to the load
B. Protect against overcurrent
C. Connect the electrical system to earth
D. Control voltage fluctuations
A grounding electrode conductor provides a low-resistance path to earth to
prevent electric shock and stabilize voltage.
3. In a three-phase system, the phase voltage is 208V. What is the line
voltage?
A. 208V
B. 120V
C. 360V
D. 240V
Line voltage = Phase voltage × √3, so 208 × 1.732 ≈ 360V.
,4. What is the maximum distance a 12 AWG copper conductor can run in a
20A branch circuit according to NEC for voltage drop <3%?
A. 50 feet
B. 75 feet
C. 100 feet
D. 120 feet
NEC recommends less than 3% voltage drop; 12 AWG at 20A can typically
run up to 120 feet for efficiency.
5. A GFCI protects against:
A. Overcurrent
B. Ground faults
C. Short circuits
D. Arc faults
GFCIs detect small differences between hot and neutral current, indicating
leakage to ground.
6. The NEC requires a minimum of how many 20A circuits for a kitchen
countertop?
A. 1
B. 2
C. 2
D. 3
NEC 210.11(C)(1) mandates at least two 20A circuits for kitchen countertop
receptacles.
7. What device interrupts current in the event of a short circuit?
A. Fuse
B. Circuit breaker
C. Transformer
D. Contactor
Circuit breakers automatically interrupt current flow when a short or
overload occurs.
, 8. In residential wiring, the neutral wire is typically:
A. Black
B. White
C. Red
D. Green
NEC standard: white or gray conductors are neutral.
9. A 240V single-phase motor draws 10A. What is the power in watts?
A. 1200 W
B. 2400 W
C. 2400 W
D. 4800 W
Power P = V × I → 240 × 10 = 2400 W.
10.Which conduit type is suitable for wet locations outdoors?
A. EMT
B. PVC
C. FMC
D. NM-B
PVC conduit is non-metallic, corrosion-resistant, and approved for wet
locations.
11.When installing a subpanel, the neutral must:
A. Be bonded to the panel
B. Share the same bus as ground
C. Be isolated from the panel
D. Be connected to all branch circuits
NEC requires subpanel neutrals isolated from ground to prevent parallel
neutral paths.
12.The NEC classifies flexible metal conduit as:
A. Type MC
B. Type FMC
C. Type EMT
EXAM LATEST 2026 VERSION WITH 100
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+||BRAND NEW VERSION!!
1. Which type of conductor insulation is rated for high temperatures?
A. THWN
B. XHHW
C. NM-B
D. UF-B
XHHW insulation is designed for high temperature environments, up to 90°C
in wet or dry locations.
2. The primary purpose of a grounding electrode conductor is to:
A. Carry current to the load
B. Protect against overcurrent
C. Connect the electrical system to earth
D. Control voltage fluctuations
A grounding electrode conductor provides a low-resistance path to earth to
prevent electric shock and stabilize voltage.
3. In a three-phase system, the phase voltage is 208V. What is the line
voltage?
A. 208V
B. 120V
C. 360V
D. 240V
Line voltage = Phase voltage × √3, so 208 × 1.732 ≈ 360V.
,4. What is the maximum distance a 12 AWG copper conductor can run in a
20A branch circuit according to NEC for voltage drop <3%?
A. 50 feet
B. 75 feet
C. 100 feet
D. 120 feet
NEC recommends less than 3% voltage drop; 12 AWG at 20A can typically
run up to 120 feet for efficiency.
5. A GFCI protects against:
A. Overcurrent
B. Ground faults
C. Short circuits
D. Arc faults
GFCIs detect small differences between hot and neutral current, indicating
leakage to ground.
6. The NEC requires a minimum of how many 20A circuits for a kitchen
countertop?
A. 1
B. 2
C. 2
D. 3
NEC 210.11(C)(1) mandates at least two 20A circuits for kitchen countertop
receptacles.
7. What device interrupts current in the event of a short circuit?
A. Fuse
B. Circuit breaker
C. Transformer
D. Contactor
Circuit breakers automatically interrupt current flow when a short or
overload occurs.
, 8. In residential wiring, the neutral wire is typically:
A. Black
B. White
C. Red
D. Green
NEC standard: white or gray conductors are neutral.
9. A 240V single-phase motor draws 10A. What is the power in watts?
A. 1200 W
B. 2400 W
C. 2400 W
D. 4800 W
Power P = V × I → 240 × 10 = 2400 W.
10.Which conduit type is suitable for wet locations outdoors?
A. EMT
B. PVC
C. FMC
D. NM-B
PVC conduit is non-metallic, corrosion-resistant, and approved for wet
locations.
11.When installing a subpanel, the neutral must:
A. Be bonded to the panel
B. Share the same bus as ground
C. Be isolated from the panel
D. Be connected to all branch circuits
NEC requires subpanel neutrals isolated from ground to prevent parallel
neutral paths.
12.The NEC classifies flexible metal conduit as:
A. Type MC
B. Type FMC
C. Type EMT
