Delaware Master Electrician Exam Prep

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Official sitting

Questions80
Time3 hours
Passing score75%
BookOpen book

Confirm question count, time, open-book rules, and passing score on the live board bulletin before you sit. We do not guarantee a passing result. Source: Prov Delaware DPR CIB 2025.06.24; 24 Del. Admin. Code 1400-4.0 (75%) and 1400-6.0 ($300,000).

What’s included

18,000+ word study guide

Worked calculations, code-section breakdowns, exam traps, a key-terms glossary and a 30/60/90-day plan.

4 full-length practice exams

Original questions weighted to match the topic mix of the real exam.

320 practice questions

Every one with a written explanation and the code section behind the answer.

Same study guide and four exams on every term. You are choosing how long you can log in.

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What this prep covers

  1. About the Delaware Master Electrician license
  2. How Delaware licensing works
  3. Electrical theory and formulas the exam assumes
  4. How the NEC is organized (navigate it fast)
  5. Branch circuits, feeders, and load calculations (Article 220)
  6. Conductor ampacity and sizing (Article 310)
  7. Overcurrent protection (Article 240)
  8. Grounding and bonding (Article 250)
  9. Boxes, raceways, and wiring methods (Articles 300, 314, Chapter 9)
  10. Motors, transformers, and HVAC (Articles 430, 450, 440)
  11. Services and working clearances (Articles 230, 110, 408)
  12. GFCI, AFCI, and special locations
  13. Worked calculations
  14. Sample exam questions, solved
  15. Common mistakes and exam traps
  16. Key articles to tab

…and 4 further sections in the full guide.

Delaware Master Electrician licensing, explained

About the Delaware Master Electrician license

Delaware licenses electricians through the Board of Electrical Examiners, within the Division of Professional Regulation. The Master Electrician is the senior credential. Delaware does not require you to first hold a journeyman license — you qualify through one of three documented-experience pathways: six years of full-time experience under the supervision of a licensed master electrician; 8,000 hours of supervised experience plus 576 hours of related instruction or apprenticeship training; or four years of supervised experience plus two years of technical training. A holder at this level can typically pull permits, supervise journeymen and apprentices, design installations, and serve as the qualifying individual for a licensed contracting business.

The exam is National Electrical Code (NEC) based, because Delaware adopts the NEC as its electrical code. It is normally open book: you may bring a clean, bound copy of the adopted NEC edition. Prov allows highlighting and permanent tabs. Moveable tabs and Post-it notes are not allowed. Plan to tab and index your code book before test day, because the exam is as much a test of how fast you can locate a section as it is of what you have memorized.

Know these scope facts cold, because the exam asks them in plain-language form: the license is held by the individual, not the company; most installations require a permit and inspection before concealment (rough-in) and again at final; you must work within the classification you hold; and performing electrical work without the required license, or beyond your scope, is a violation that can cost you the license and carry civil penalties.

How Delaware licensing works

  • Experience: one of three pathways — six years full-time under a licensed master electrician; 8,000 hours supervised plus 576 hours of related instruction; or four years supervised plus two years of technical training.
  • Education: the related-instruction/technical-training hours above supplement, not replace, the supervised-hours requirement in the second and third pathways.
  • Application: submit the application, fees, proof of experience (often signed off by a supervising/master electrician or employer), and — for the Master license — proof of general liability insurance of at least $300,000 before you are approved to sit.
  • Exam vendor: ProV, administering exams for the Division of Professional Regulation. The exam is 80 questions, 3 hours, and 75 percent (60 of 80), on the 2025.06.24 Prov bulletin.
  • Renewal: licenses renew biennially, due by June 30 of even-numbered years, and require 10 hours of continuing education per cycle, at least 5 hours of which must be NEC-related starting at your second renewal.

Before you rely on any value in this guide, use the 2020 NEC named on the 2025.06.24 Prov bulletin. Ampacities, GFCI/AFCI scope, working-clearance distances, and receptacle-spacing rules differ in later editions, and this exam is not written to the 2023 or 2026 NEC.

This is the opening of the full study guide. The complete guide continues into code navigation, worked calculations and solved exam questions.

Other Delaware exam prep

Delaware Master Electrician exam — common questions

Who administers the Delaware Master Electrician exam?

The Delaware Master Electrician is administered by Delaware DPR Board of Electrical Examiners / Prov CIB 2025.06.24. Master electrician: 80 Q / 3 hours (180 min) / 75% (60 of 80). Open book on the bulletin: NEC 2020 and American Electrician's Handbook 17th. Board rule 1400-4.0 still says NEC only; follow the bulletin reference list for the appointment and re-check it. Not PSI. Not the journeyperson paper (70 Q, different mix). Not limited, residential, or master-special. Mix: general knowledge 19 / plan reading 4 / equipment 5 / wiring and protection 15 / wiring methods 15 / motors and controls 7 / special conditions 4 / special equipment 4 / special occupancies 4 / communications 3. Insurance: masters carry at least $300,000 general liability (1400-6.0); journeypersons are exempt. Field code adoptions do not replace this bulletin's 2020 NEC..

How many questions are on the Delaware Master Electrician exam?

The exam contains 80 questions. You need 75% to pass. You are allowed 3 hours.

How much practice does this prep include?

It includes 4 full-length practice exams and 320 practice questions in total. Every question has a written explanation naming the code section the answer comes from.

How long is the study guide?

The Delaware Master Electrician guide runs to roughly 18,217 words, covering 20 sections from licensing rules through worked calculations and solved exam questions.

How long do I get access?

Choose 30, 60 or 90 days at checkout. Access begins the moment you enrol, works on any device, and you can retake every practice exam as often as you like. Days remaining are shown in your dashboard and you can extend at any time.

Is this an official Delaware Master Electrician exam?

No. This is independent preparation material. It is not affiliated with or endorsed by any state licensing board or exam vendor, and it does not contain real exam questions. Always confirm current requirements with your licensing board.

About this Delaware Master Electrician prep

This prep is built specifically for the Delaware Master Electrician examination and includes a 18,000+-word study guide written for this exam, 4 full-length practice exams and 320 practice questions, each with a written explanation.

The Delaware Master Electrician is administered by Delaware DPR Board of Electrical Examiners / Prov CIB 2025.06.24. Master electrician: 80 Q / 3 hours (180 min) / 75% (60 of 80). Open book on the bulletin: NEC 2020 and American Electrician's Handbook 17th. Board rule 1400-4.0 still says NEC only; follow the bulletin reference list for the appointment and re-check it. Not PSI. Not the journeyperson paper (70 Q, different mix). Not limited, residential, or master-special. Mix: general knowledge 19 / plan reading 4 / equipment 5 / wiring and protection 15 / wiring methods 15 / motors and controls 7 / special conditions 4 / special equipment 4 / special occupancies 4 / communications 3. Insurance: masters carry at least $300,000 general liability (1400-6.0); journeypersons are exempt. Field code adoptions do not replace this bulletin's 2020 NEC.. This prep is written to that board’s current scope, not to a generic national syllabus.

The real Delaware Master Electrician exam contains 80 questions, with a passing score of 75%. Our practice exams mirror that structure so the format is familiar before you sit it.

Topics covered

  • About the Delaware Master Electrician license
  • How Delaware licensing works
  • Electrical theory and formulas the exam assumes
  • How the NEC is organized (navigate it fast)
  • Branch circuits, feeders, and load calculations (Article 220)
  • Conductor ampacity and sizing (Article 310)
  • Overcurrent protection (Article 240)
  • Grounding and bonding (Article 250)
  • Boxes, raceways, and wiring methods (Articles 300, 314, Chapter 9)
  • Motors, transformers, and HVAC (Articles 430, 450, 440)
  • Services and working clearances (Articles 230, 110, 408)
  • GFCI, AFCI, and special locations
  • Worked calculations
  • Sample exam questions, solved
  • Common mistakes and exam traps
  • Key articles to tab
  • Glossary of must-know terms
  • Your 30 / 60 / 90 day study plan
  • Exam-day strategy
  • 2 – Scope of the NEC

How access works

You are paying for access length (30, 60, or 90 days). The study guide and four timed exams are the same on every term. Access starts when you enrol and works on any device for that term.

Not affiliated with or endorsed by any state licensing board or exam vendor. For exam-preparation purposes only.