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Kansas City, MO Master Electrician Exam (ICC G16, 2017 NEC) Practice Exam

100 questions 300 minutes 75% to pass 9 topics 3:00 per question Open book 446 questions in pool
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  • 100 questions (same as real exam)
  • 300 minute time limit
  • 9 topic areas covered
  • 446 questions in pool
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Kansas City, MO Master Electrician (ICC G16, 2017 NEC) Practice Exam Guide

Built from the official Pearson VUE exam bulletin. View the bulletin

What's on the exam

Questions per topic, out of 100
Wiring Methods and Materials19
Services and Service Equipment16
Branch Circuits and Conductors16
General Knowledge12
Special Occupancies, Equipment, and Conditions12
Equipment and Devices10
Motors and Generators8
Feeders4
Control Devices3

This practice exam is built around the official content outline for the Kansas City, MO Master Electrician (ICC G16, 2017 NEC) exam: General Knowledge, Services and Service Equipment, Feeders, Branch Circuits and Conductors, Wiring Methods and Materials, Equipment and Devices, Control Devices, Motors and Generators, Special Occupancies, Equipment, and Conditions.

There are two ways to practice. The free practice exam gives you 10 questions per attempt, and you can take it as many times as you like. The full practice exam gives you 100 questions on a 5 hours clock, with a new draw from our question bank each time.

9 topics

General Knowledge 12 items

Our study plan for this topic: Electrical Theory and General Electrical Load Calculations; Code Definitions and Terms; Plan Reading; NEC Purpose, Scope, and Code Arrangement; Equipment Approval, Listing, and Labeling Requirements; General Installation Requirements (Article 110); Working Space and Clearances Around Electrical Equipment; Conductor Materials, Sizes, and Temperature Ratings.

Services and Service Equipment 16 items

The outline lists: Services and Fault Current; Service Load Calculations; Service Equipment & Service Conductors; Transformers; System Grounding and Bonding; Temporary Service Wiring; Service entrance conductor installation methods and clearances; Service disconnecting means requirements and ratings.

Feeders 4 items

Our study plan for this topic: Load Calculations; Equipment Grounding; Feeder conductor sizing and ampacity requirements; Overcurrent protection for feeders; Feeder neutral load calculations and demand factors; Outside feeders: clearances, conductor sizing, and disconnecting means; Demand factors for dwelling and non-dwelling feeder loads; Ground-fault protection of equipment for feeders.

Branch Circuits and Conductors 16 items

Our study plan for this topic: Branch Circuit Calculation; Overcurrent Protection; Conductors; Required Outlets & GFCI/AFCI Protection; Equipment Grounding; Voltage Drop Calculations (Single-Phase and Three-Phase); Conductor Insulation Types and Application Environments; Ampacity Correction and Adjustment Factors.

Wiring Methods and Materials 19 items

Our study plan for this topic: Raceway Installations; Underground Wiring Methods; Boxes and Enclosures; Cabinets, Panelboards, & Switchboards; Clearance and Guarding; Flexible Cords and Cables; Cable Wiring Methods (NM, AC, MC, MI, SE, UF, TC, MV, FCC, FC, IGS cable types); Conduit and Tubing Types (RMC, IMC, EMT, FMC, LFMC, PVC, HDPE, RTRC, ENT, LFNC, FMT).

Equipment and Devices 10 items

Our study plan for this topic: Luminaires; Receptacles, Switches and Other Devices; Appliances and Other Equipment; Other Utilization Equipment; Heating and Cooling Equipment; Fixture Wire Types, Ampacity, and Installation Requirements; NEMA Receptacle and Plug Configurations; Lighting Track Installation and Construction Requirements.

Control Devices 3 items

Our study plan for this topic: Switches, Disconnects and Controllers; Motor controller ratings and markings (horsepower, voltage, short-circuit current); Motor control circuit overcurrent protection and wiring (Article 430 Part VI); Motor disconnecting means types, location, and ampere ratings; Motor control center construction, overcurrent protection, and grounding; Class 1, Class 2, and Class 3 remote-control circuit classifications and power source requirements; Stop-start station wiring and control relay circuits (jogging, hand-off-automatic); Industrial control panel overcurrent protection, short-circuit current rating, and disconnecting means.

Motors and Generators 8 items

Our study plan for this topic: Motors; Generators; Motor branch-circuit conductor sizing (125% FLC rule); Motor branch-circuit short-circuit and ground-fault protection (Table 430.52); Motor overload protection (sizing and placement of overload devices); Motor disconnecting means (type, location, and rating requirements); Motor controllers (ratings, types, and design requirements); Motor control centers (overcurrent protection, grounding, and busbar requirements).

Special Occupancies, Equipment, and Conditions 12 items

The outline lists: 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; Hazardous (Classified) Locations — Class I, II, and III Division and Zone Classification.

3 questions

Sample 1 — Wiring Methods and Materials

Question: You are an electrical contractor installing Type MI cable in a hospital. The cable will pass through areas that are continuously moist, areas exposed to oil, and areas embedded in concrete. Per NEC 332.10, which of these installation conditions is NOT permitted for Type MI cable?

  • A. Continuously moist locations
  • B. Where exposed to oil and gasoline
  • C. Where embedded in concrete
  • D. All of these conditions are permitted for Type MI cable

Correct Answer: D

Per NEC 332.10, Type MI cable is permitted in dry, wet, or continuously moist locations (item 3), where exposed to oil and gasoline (item 8), and where embedded in plaster, concrete, fill, or other masonry (item 6). All three conditions listed are permitted uses for Type MI cable.

Reference: NEC 2017 Section 332.10

Sample 2 — Services and Service Equipment

Question: For a grounded AC system, the grounded conductor brought to each service disconnecting means enclosure shall not be smaller than the size specified in which table?

  • A. Table 250.102(C)(1)
  • B. Table 310.16
  • C. Table 250.66
  • D. Table 250.122

Correct Answer: A

Per NEC 250.24(C)(1), the grounded conductor shall not be smaller than specified in Table 250.102(C)(1). This table is also used for sizing main bonding jumpers and supply-side bonding jumpers. The grounded conductor serves as the ground-fault return path on the line side of the service disconnecting means.

Reference: NEC 2017 Section 250.24(C)(1)

Sample 3 — Branch Circuits and Conductors

Question: What is the minimum copper service-entrance conductor size for a 200 A, 120/240-volt, single-phase service to a one-family dwelling, using THHN conductors with 75°C terminals?

  • A. 2/0 AWG
  • B. 3/0 AWG
  • C. 250 kcmil
  • D. 300 kcmil

Correct Answer: A

For a 120/240-volt, single-phase service supplying the entire load of a one-family dwelling, 310.12(A) (310.15(B)(7) in NEC 2017) permits service conductors with an ampacity of not less than 83 percent of the service rating: 200 A x 0.83 = 166 A. In the 75°C column of Table 310.16, 2/0 AWG copper is rated 175 A, so 2/0 AWG is the minimum. Without that dwelling allowance, 3/0 AWG copper (rated 200 A) would be required.

Reference: NEC 2017 Section 310.15(B)(7) and Table 310.15(B)(16)

Your first score is just a starting point. After every attempt, the results page shows how you did on each outline topic, so you can see what to work on next. Compare your score with the real exam's passing score, a minimum score of 75, and keep at it until you pass consistently.

  • Start with the questions you know. Go through the whole exam once and bookmark anything you're unsure about. Our practice exams let you bookmark and come back.
  • Circle back to your bookmarks on the second pass.
  • Keep an eye on your pace. The real exam works out to about 3 minutes per question.
  • Turn every miss into a lesson. After each attempt, look up each missed question's reference in your book and read the section.

Questions 100 questions
Time limit 5 hours
Passing score a minimum score of 75
Books in the exam room Open book
Exam fee $115
  • Results for electronically administered examinations are available immediately after the exam is completed.
  • You must wait 10 days before retaking a failed exam.

Source: Kansas City, Missouri Examination Information Bulletin (ICC Contractor/Trades), PUBLISHED November 10, 2025. Check the bulletin before test day: fees and rules can change.

Reference books

2 books on the bulletin
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