ICC F18 Residential Electrician Exam (2014 NEC) Practice Exam
ICC is retiring this exam. From December 1, 2026 it is no longer available for registration through Pearson VUE (ICC Exam Catalog, checked October 23, 2026). The version on the 2017 NEC, ICC G18, has no retirement date listed, and we have a practice test for it.
Free Practice Exam
Test your knowledge with 10 questions from our pool of 20 free questions.
- 10 questions per attempt
- 30 minute time limit
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Full Practice Exam
Complete exam simulation matching the real Pearson VUE test format.
- 60 questions (same as real exam)
- 180 minute time limit
- 7 topic areas covered
- 299 questions in pool
- Detailed explanations
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ICC F18 Residential Electrician (2014 NEC) Practice Exam Guide
What's on the exam
Questions per topic, out of 60This practice exam follows the official content outline for the ICC F18 Residential Electrician (2014 NEC) exam: General Knowledge, Services and Service Equipment, Feeders, Branch Circuits and Conductors, Wiring Methods and Materials, Equipment and Devices, Special Occupancies, Equipment, and Conditions.
- Free practice exam: 10 questions per attempt, retake as often as you like.
- Full practice exam: 60 questions on a 3 hours clock, a new draw from our bank every attempt.
General Knowledge 7 items
Our study plan for this topic: Electrical Theory and General Electrical Load Calculations; Code Definitions and Terms; 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; Electrical Symbols and Wiring Diagrams.
Services and Service Equipment 13 items
Our study plan for this topic: Service Load Calculations; Service Equipment & Service Conductors; System Grounding and Bonding; Service disconnect requirements and ratings; Overhead and underground service conductor installation; Grounding electrode system and electrode types; Equipment grounding conductors — types, sizing, and identification; Bonding methods at service equipment and piping systems.
Feeders 8 items
Our study plan for this topic: Load Calculations; Equipment Grounding; Feeder conductor ampacity and minimum sizing (NEC Article 215); Overcurrent protection for feeders; Feeder neutral load calculations and permitted reductions; Ground-fault protection of equipment on feeders rated 1000A or more; Outside feeder installation requirements (clearances, wiring methods, disconnecting means); Demand factors for dwelling unit appliance loads (dryers, ranges, cooking equipment).
Branch Circuits and Conductors 15 items
Our study plan for this topic: Branch Circuit Calculations; Required Outlets & GFCI/AFCI Protection; Overcurrent Protection; Equipment Grounding; Conductors; Voltage Drop Calculations and Conductor Sizing; Conductor Ampacity Tables and Temperature Ratings; Ampacity Correction and Adjustment Factors.
Wiring Methods and Materials 8 items
Our study plan for this topic: Raceway Installations; Boxes and Enclosures; Flexible Cords and Cables; Cable Wiring Methods (NM, MC, SE, UF, and Type UF underground installations); Conductor Protection Against Physical Damage (nail plates, clearances, framing members); Underground Installation Requirements and Burial Depths; Conduit Fill Calculations and Conductor Count Limits; Conduit Bending Techniques (90° stubs, offsets, saddle bends, back-to-back).
Equipment and Devices 5 items
Our study plan for this topic: Luminaires; Receptacles, Switches and Other Devices; Appliances and Other Equipment; Luminaire location requirements (wet, damp, closets, bathtub/shower zones); Recessed luminaire installation (Type IC vs. non-IC, thermal protection, clearances); Lighting track installation and construction requirements; Low-voltage lighting system requirements (Article 411); Switch ratings, types, and installation requirements.
Special Occupancies, Equipment, and Conditions 4 items
Our study plan for this topic: Swimming Pools and Similar Installations; Low Voltage Circuits, Alarm & Similar Systems; Fire Alarm Circuit Classifications (NPLFA vs. PLFA) and Power Source Requirements; Fire Alarm Cable Types and Installation by Location (FPLP, FPLR, FPL, NPLFP, NPLFR, NPLF); Class 1, Class 2, and Class 3 Circuit Definitions and Power Source Limitations; Separation and Mixing Rules for Class 2/3 Circuits with Other Circuit Types; Communications Circuit Wiring Methods, Cable Types (CMP, CMR, CM, CMX), and Installation by Location; Primary Protector Requirements and Grounding/Bonding for Communications Systems.
Sample 1 — Branch Circuits and Conductors
Question: A circuit breaker must have its interrupting rating shown on the device whenever that interrupting rating is other than what value?
- A. 10,000 amperes
- B. 65,000 amperes
- C. 22,000 amperes
- D. 5,000 amperes
Correct Answer: D
NEC 2014, Section 240.83(C) states that every circuit breaker having an interrupting rating other than 5000 amperes shall have its interrupting rating shown on the circuit breaker (not required on breakers used for supplementary protection). The 10,000-ampere figure is the comparable threshold for marking cartridge fuses in 240.60(C)(3).
Reference: NEC 2014 Section 240.83(C)
Sample 2 — Services and Service Equipment
Question: Except for conductors supplying only limited loads of a single branch circuit, overhead service conductors shall not be smaller than:
- A. 10 AWG copper or 8 AWG aluminum
- B. 6 AWG copper or 4 AWG aluminum
- C. 12 AWG copper or 10 AWG aluminum
- D. 8 AWG copper or 6 AWG aluminum
Correct Answer: D
NEC 2014, Section 230.23(B) states that overhead service conductors shall not be smaller than 8 AWG copper or 6 AWG aluminum or copper-clad aluminum. (Section 230.31(B) sets the same minimum for underground service conductors.)
Reference: NEC 2014 Section 230.23(B)
Sample 3 — Feeders
Question: Two or three single-pole circuit breakers capable of individual operation are permitted on multiwire circuits as one multipole building disconnect, one pole per ungrounded conductor, if they are equipped with identified handle ties or a master handle. All ungrounded conductors must be disconnected with no more than how many operations of the hand?
- A. Three
- B. One
- C. Six
- D. Two
Correct Answer: C
Per NEC 2014, 225.33(B), single-pole switches or breakers on multiwire circuits may serve as one multipole disconnect provided handle ties or a master handle disconnect all ungrounded conductors with no more than six operations of the hand.
Reference: NEC 2014 Section 225.33(B)
- Your results break the score down by outline topic.
- The real exam's passing score: 70% correct.
- Keep practicing until you pass consistently, not just once.
- Answer what you know first and bookmark the rest. Our practice exams let you bookmark and come back.
- Work your bookmarks on the second pass.
- Real exam pace: about 3 minutes per question.
- After each attempt, look up every miss in your book.
| Questions | 60 questions |
| Time limit | 3 hours |
| Passing score | 70% correct |
| Books in the exam room | Open book |
| Exam fee | $120 |
- Results for examinations taken electronically are available immediately after the examination is completed.
- You must wait 10 days before retaking a failed exam.
Source: National Contractor/Trades Examination Information Bulletin, PUBLISHED June 30, 2026; ICC Exam Catalog, checked October 23, 2026. Check the bulletin before test day: fees and rules can change.