WISCONSIN DSPS ELECTRICAL LICENSING PRACTICE EXAM JOURNEYMAN/MASTER ELECTRICIAN NEWEST 20, Exams of Electrical Engineering

WISCONSIN DSPS ELECTRICAL LICENSING PRACTICE EXAM JOURNEYMAN/MASTER ELECTRICIAN NEWEST 2026 UPDATE ACTUAL QUESTIONS & CORRECT ANSWERS | ALREADY GRADED A+

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2025/2026

Available from 02/27/2026

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WISCONSIN DSPS ELECTRICAL LICENSING PRACTICE EXAM
JOURNEYMAN/MASTER ELECTRICIAN NEWEST 2026 UPDATE
ACTUAL QUESTIONS & CORRECT ANSWERS | ALREADY
GRADED A+
Content Covered (Most Tested Areas):
National Electrical Code (NEC) application • Grounding and
bonding • Overcurrent protection • Conductor sizing •
Services and feeders • Motors • Transformers • Wiring
methods • Boxes and enclosures • Load calculations • Special
occupancies • Safety and installation standards
1. What NEC article covers general requirements for grounding and
bonding?
Answer: Article 250
Article 250 contains the core rules for grounding and bonding of
electrical systems.
2. What is the minimum cover depth for rigid metal conduit under a
residential driveway?
Answer: 6 inches
Rigid metal conduit permits reduced burial depth due to
mechanical protection.
3. What device protects against overcurrent caused by overload and
short circuit?
Answer: Circuit breaker
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WISCONSIN DSPS ELECTRICAL LICENSING PRACTICE EXAM

JOURNEYMAN/MASTER ELECTRICIAN NEWEST 2026 UPDATE

ACTUAL QUESTIONS & CORRECT ANSWERS | ALREADY

GRADED A+

Content Covered (Most Tested Areas):

National Electrical Code (NEC) application • Grounding and

bonding • Overcurrent protection • Conductor sizing •

Services and feeders • Motors • Transformers • Wiring

methods • Boxes and enclosures • Load calculations • Special

occupancies • Safety and installation standards

  1. What NEC article covers general requirements for grounding and bonding? Answer: Article 250 Article 250 contains the core rules for grounding and bonding of electrical systems.
  2. What is the minimum cover depth for rigid metal conduit under a residential driveway? Answer: 6 inches Rigid metal conduit permits reduced burial depth due to mechanical protection.
  3. What device protects against overcurrent caused by overload and short circuit? Answer: Circuit breaker

A circuit breaker opens automatically when current exceeds rated limits.

  1. What is the standard voltage of a typical single-phase residential service in the U.S.? Answer: 120/240 volts Residential services commonly use split-phase systems.
  2. What color insulation identifies grounded conductors smaller than 6 AWG? Answer: White or gray NEC requires white or gray for grounded (neutral) conductors.
  3. What is required to connect metal parts to earth to prevent shock? Answer: Grounding Grounding stabilizes voltage and provides a fault path.
  4. What NEC article covers motors, motor circuits, and controllers? Answer: Article 430 Article 430 addresses installation and protection of motors.
  5. What is the term for the conductor that carries fault current to facilitate breaker operation? Answer: Equipment grounding conductor This conductor ensures a low-impedance fault path.
  6. What is the minimum working space depth in front of electrical equipment operating at 0–150 volts to ground? Answer: 3 feet Required to allow safe servicing of equipment.

Answer: Two NEC requires at least two 20-amp small-appliance circuits.

  1. What is used to prevent physical damage where cables pass through studs? Answer: Nail plate Steel plates protect cables from screws or nails.
  2. What must be installed at every service disconnect? Answer: Grounding electrode conductor Connects service to grounding electrode system.
  3. What is the purpose of bonding? Answer: To ensure electrical continuity Bonding connects metal parts to prevent voltage differences.
  4. What NEC article covers transformers? Answer: Article 450 Article 450 addresses transformer installation and protection.
  5. What is the minimum size copper grounding electrode conductor for a 200-amp service (typical)? Answer: 4 AWG copper Common requirement based on conductor size tables.
  6. What is the term for the maximum current a conductor can carry continuously? Answer: Ampacity Ampacity depends on size, insulation, and conditions.
  7. What device is required for emergency disconnection of service conductors?

Answer: Service disconnect Allows power shutoff in emergencies.

  1. What NEC article covers wiring methods? Answer: Article 300 General wiring method requirements are found here.
  2. What protection is required for receptacles outdoors at dwellings? Answer: GFCI protection Outdoor locations are considered damp or wet.
  3. What is the function of a transformer? Answer: To change voltage levels Transformers step voltage up or down.
  4. What type of box must be used in wet locations? Answer: Weatherproof box Prevents water intrusion.
  5. What is required to protect conductors from excessive current? Answer: Overcurrent protection Includes fuses or circuit breakers.
  6. What NEC article covers overcurrent protection? Answer: Article 240 Article 240 governs fuses and breakers.
  7. What is the term for connecting conductive parts together and to ground? Answer: Bonding Bonding minimizes shock hazards.
  1. What is used to terminate service entrance conductors overhead? Answer: Weatherhead Prevents water entry into conduit.
  2. What is the purpose of a grounding electrode system? Answer: To connect electrical system to earth Stabilizes system voltage and dissipates faults.
  3. What conductor connects the service equipment to grounding electrodes? Answer: Grounding electrode conductor Critical for system grounding.
  4. What NEC article covers boxes and conduit bodies? Answer: Article 314 Covers sizing and installation requirements.
  5. What must be provided to prevent conductor insulation damage at box entries? Answer: Bushings or fittings Protect insulation from sharp edges.
  6. What is the minimum height for service disconnect mounting (maximum allowed)? Answer: 6 feet 7 inches Handle must be reachable safely.
  7. What device provides protection against lightning surges? Answer: Surge protective device Limits transient overvoltages.
  1. What type of conductor insulation is rated for wet locations? Answer: THWN “W” indicates suitability for wet conditions.
  2. What is required for metal water piping systems in buildings? Answer: Bonding Prevents shock hazards from energized pipes.
  3. What NEC article covers load calculations for dwellings? Answer: Article 220 Provides methods for determining service size.
  4. What is the term for a circuit supplying utilization equipment? Answer: Branch circuit Final circuit delivering power to loads.
  5. What safety practice requires verifying absence of voltage before work? Answer: Testing for de-energization Essential step in electrical safety procedures.
  6. What NEC article covers feeders? Answer: Article 215 Feeders are conductors supplying multiple branch circuits or loads; Article 215 governs installation, sizing, and protection.
  1. What is the minimum rating for a feeder overcurrent device protecting a 60-ampere load? Answer: 60 amperes Overcurrent protection must match or slightly exceed load rating.
  2. What device is used to protect a transformer secondary circuit? Answer: Secondary overcurrent protection Ensures conductor and equipment safety.
  3. What type of conductor insulation is suitable for 90°C terminals? Answer: THHN or THWN- 2 Rated for high-temperature environments.
  4. What NEC article covers grounding electrode conductors? Answer: Article 250 Specifies sizing and connections for grounding electrodes.
  5. What is required when installing metallic raceways through concrete? Answer: Mechanical protection and corrosion resistance Prevents physical damage and deterioration.
  6. What is the minimum size equipment grounding conductor for a 200-amp service using copper? Answer: #4 AWG copper Per NEC Table 250.122.
  7. What is the minimum distance above finished grade for overhead service conductors to residential driveways?

Answer: 12 feet Provides safe clearance for vehicles.

  1. What device detects overcurrent caused by short circuits and overloads? Answer: Circuit breaker Interrupts current automatically to protect equipment.
  2. What NEC article covers receptacle outlets for dwelling units? Answer: Article 210 Contains requirements for spacing, number, and protection.
  3. What is the minimum number of lighting outlets required for a dwelling living room? Answer: One outlet per room Ensures basic illumination per NEC.
  4. What protection is required for basement receptacles in dwelling units? Answer: GFCI protection Basements are considered damp locations.
  5. What NEC article covers wiring methods such as conduit, cable, and raceways? Answer: Article 300 Defines installation standards for safe wiring.
  6. What is the minimum burial depth for PVC conduit under a driveway? Answer: 18 inches
  1. What type of conductor insulation is suitable for wet locations and high heat? Answer: THWN- 2 “W” indicates wet location rating, “2” indicates 90°C rating.
  2. What is the minimum working space in front of 601–1000V electrical equipment? Answer: 3 feet Ensures safe maintenance access.
  3. What device protects motors from overload? Answer: Overload relay Prevents overheating.
  4. What is required for metal raceways entering boxes? Answer: Grounding and bonding Maintains continuity of fault path.
  5. What NEC article covers hazardous locations such as Class I, Division 2? Answer: Article 500 Provides installation rules for explosive atmospheres.
  6. What type of surge protection is required for sensitive electronics? Answer: Surge protective device (SPD) Limits voltage transients.
  7. What is the purpose of a neutral conductor in a 120/240V split-phase system? Answer: Provides return path for unbalanced current Maintains voltage balance.
  1. What device is used to protect a circuit from short-circuit current? Answer: Circuit breaker Interrupts current immediately.
  2. What is the minimum height of service conductors above residential sidewalks? Answer: 10 feet Ensures pedestrian clearance.
  3. What is the term for the conductors between service and panelboard? Answer: Feeder Distributes power to branch circuits.
  4. What NEC article covers transformer secondary overcurrent protection? Answer: Article 450 Specifies protection for secondary circuits.
  5. What is the minimum distance between luminaire outlets in habitable rooms? Answer: As per spacing requirements for uniform lighting Ensures adequate illumination.
  6. What is required to prevent corrosion of metal raceways buried in concrete? Answer: Corrosion-resistant materials or coatings Prevents deterioration.
  7. What NEC article covers grounding of separately derived systems?
  1. What type of box is required in damp or wet locations? Answer: Weatherproof box Prevents water intrusion.
  2. What NEC article covers branch circuit conductors and ratings? Answer: Article 210 Includes sizing and protection of branch circuits.
  3. What device is required to prevent shock in wet or damp locations? Answer: GFCI Protects personnel.
  4. What safety practice requires verifying equipment is de- energized before starting work? Answer: Lockout/Tagout and voltage testing Essential for personal safety and compliance.