Pass Your Contractor, Journeyman, and Master Electrical Exam Nationally


We offer prep for the exams below:

NASCLA - Contractor
Electrician ICC G17
NASCLA - Journeyman
Electrician ICC G16

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National NASCLA Contractor Exam

Exam Breakdown

Number of Questions: 110 scored

Time Limit: 270 minutes (4.5 hours)

Passing Score: 70%

Topic Breakdown:

Communication Systems - 1 question

Electrical Theory & Principles - 11 questions

Experimental - 10 questions

General Code Requirements - 17 questions

General Equipment Use - 13 questions

Project Design and Management - 8 questions

Safety - 9 questions

Special Occupancies, Special Equipment, and Special Conditions - 8 questions

Wiring and Protection - 17 questions

Wiring Methods and Materials - 16 questions

In-Depth Guides

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National Journeyman Electrician ICC G17 Exam

Exam Breakdown

QUESTIONS: 80

TIME LIMIT: 4 Hours

General Knowledge (6%)

  • Electrical Theory and General
  • Electrical Load Calculations
  • Code Definitions and Terms
  • Plan Reading

Services and Service Equipment (11%)

  • Services and Fault Current
  • Service Load Calculations
  • Service Equipment & Service Conductors
  • Transformers System
  • Grounding and Bonding
  • Temporary Service Wiring

Feeders (4%)

  • Load Calculations
  • Equipment Grounding

Branch Circuits and Conductors (19%)

  • Branch Circuit Calculation
  • Overcurrent Protection, Conductors
  • Required Outlets & GFCI / AFCI Protection
  • Equipment Grounding

Wiring Methods and Materials (26%)

  • Raceway Installations
  • Underground Wiring Methods
  • Boxes and Enclosures
  • Cabinets
  • Panelboards & Switchboards
  • Clearance and Guarding
  • Flexible Cords and Cables

Equipment and Devices (13%)

  • Luminaires, Receptacles, Switches, and Other Devices
  • Appliances and Other Equipment
  • Other Utilization Equipment
  • Heating and Cooling Equipment

Control Devices (4%)

  • Switches, Disconnects, and Controllers

Motors and Generators (6%)

  • Motors
  • Generators

Special Occupancies, Equipment, and Conditions (11%)

  • Special Occupancies
  • Swimming Pools and Similar Installations
  • Mobile Home and RV Parks
  • Data Processing Equipment
  • Miscellaneous Special Equipment
  • Emergency Systems
  • Signaling and Fire Alarm Systems

In-Depth Guides

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National NASCLA Journeyman Exam

Exam Breakdown

Number of Questions: 110 scored

Time Limit: 300 minutes (5 hours)

Passing Score: 70%

Topic Breakdown:

Basic Electrical Safety - 8 questions

Electrical Theory and Principles - 10 questions

Equipment for General Use - 10 questions

Experimental Items - 10 questions

General Code Requirements - 15 questions

Interpreting Plans & Specifications - 6 questions

Special Conditions and Communication Systems - 2 questions

Special Occupancies and Special Equipment - 8 questions

Testing and Troubleshooting - 7 questions

Wiring and Protection - 18 questions

Wiring Methods & Materials - 16 questions

In-Depth Guides

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National Master Electrician ICC G16 Exam

Exam Breakdown

QUESTIONS: 100

TIME LIMIT: 5 Hours


General Knowledge (12%)

  • Electrical Theory and General
  • Electrical Load Calculations
  • Code Definitions and Terms
  • Plan Reading

Services and Service Equipment (16%)

  • Services and Fault Current
  • Service Load Calculations
  • Service Equipment & Service Conductors
  • Transformers System Grounding and Bonding
  • Temporary Service Wiring

Feeders (4%)

  • Load Calculations
  • Equipment Grounding

Branch Circuits and Conductors (16%)

  • Branch Circuit Calculation
  • Overcurrent Protection Conductors
  • Required Outlets & GFCI / AFCI Protection
  • Equipment Grounding

Wiring Methods and Materials (19%)

  • Raceway Installations
  • Underground Wiring Methods
  • Boxes and Enclosures
  • Cabinets
  • Panel Boards & Switchboards
  • Clearance and Guarding
  • Flexible Cords and Cables

Equipment and Devices (10%)

  • Luminaires, Receptacles, Switches, and Other Devices
  • Appliances and Other Equipment
  • Other Utilization Equipment
  • Heating and Cooling Equipment

Control Devices (3%)

  • Switches, Disconnects, and Controllers

Motors and Generators (8%)

  • Motors
  • Generators

Special Occupancies, Equipment, and Conditions (12%)

  • Special Occupancies, Swimming Pools, and Similar Installations
  • Mobile Home and RV Parks
  • Data Processing Equipment
  • Miscellaneous Special Equipment
  • Emergency Systems
  • Signaling and Fire Alarm Systems

In-Depth Guides

Learn More

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