- The DE-ME passing score is 75% - you need roughly 60 of 80 questions correct.
- The exam is 80 questions, 3 hours, computer-administered, and open book through Prov.
- Approved references (2020 NEC-based bulletin, American Electricians' Handbook, Ugly's) may have permanent tabs and highlighting only.
- General Electrical Knowledge is the largest domain, so it carries the most weight toward your 75%.
The Passing Score: 75% on 80 Questions
The Delaware Board of Electrical Examiners, through its Division of Professional Regulation, sets a single clear benchmark for the Master Electrician exam: you must score 75% to pass. With 80 total questions on the exam, that works out to needing approximately 60 correct answers, since 75% of 80 is exactly 60. There's no partial credit, no curve, and no separate cut score by domain - just one overall percentage that determines whether you walk out with a passing result or need to schedule a retake.
This number is the single most important data point for anyone preparing for the Delaware Master Electrician License Exam, and it should shape how you allocate study time across all ten content domains rather than treating any one area as optional.
What 75% Actually Means on Test Day
A 75% passing score sounds straightforward until you sit down with the clock running. Because the exam covers ten distinct domains - from General Electrical Knowledge to Communication Systems - a candidate who is strong in wiring methods but weak on plan reading or special occupancies can still fall short of 60 correct answers even with solid overall knowledge. The Board doesn't publish a required minimum per domain, but every question you miss counts equally against your 75% target, regardless of which domain it came from.
That means a disciplined candidate treats every domain as a potential source of the points needed to clear the threshold. Skipping a domain because it feels like a small slice of your trade experience is one of the fastest ways to fall short. For a full breakdown of how the ten domains are structured and weighted, see the DE-ME Exam Domains 2026: Complete Guide to All 10 Content Areas.
Key Takeaway
Because 75% is calculated across the entire 80-question exam, weak performance in even one or two domains can be the difference between passing and retaking.
How Domain Weighting Affects Your Score
The ten domains on the Delaware Master Electrician License Exam are not weighted equally. Official question allocations out of 80 confirm that General Electrical Knowledge is the largest domain, meaning it contributes the most individual questions - and therefore the most potential points - toward your 75% target. The remaining domains cover a mix of practical and code-based content:
Domain 1: General Electrical Knowledge
The largest domain by question count. Expect broad coverage of fundamental electrical theory, calculations, and general code application that underpins the other nine areas.
- Prioritize this domain first since it carries the heaviest point value
Domain 2: Plan Reading
Tests your ability to interpret electrical plans, symbols, and schedules the way a Master Electrician would on a real job site or permit review.
- Practice reading load schedules and panel diagrams, not just memorizing symbols
Domains 3-6: Equipment, Wiring & Protection, Wiring Methods & Materials, Motors & Controls
These hands-on domains reflect day-to-day Master-level decision making: selecting equipment, sizing conductors and overcurrent protection, choosing wiring methods for specific conditions, and troubleshooting motor circuits.
- Cross-reference every practice question against your approved code book
Domains 7-10: Special Conditions, Special Equipment, Special Occupancies, Communication Systems
Smaller in question count individually but collectively significant. These domains test edge cases - hazardous locations, health care facilities, low-voltage and signal systems - that many candidates underestimate.
- Don't skip these because they feel niche; every question is worth the same toward 75%
Because the point value of each domain differs, your prep time shouldn't be split evenly ten ways. A domain-by-domain breakdown of how much time to invest is covered in detail in the DE-ME Exam Domains 2026 guide, and it pairs well with the broader strategy in the DE-ME Study Guide 2026.
Why "Open Book" Doesn't Make 75% Easy
One detail that catches many first-time candidates off guard: the Delaware Master Electrician exam is open book. You're permitted to bring approved references into the testing session, including the code edition specified in Prov's candidate information bulletin, the American Electricians' Handbook 17th edition, and Ugly's Electrical References 2020. Permanent tabs and highlighting inside those references are allowed.
What's not allowed is just as important: handwritten notes, temporary tabs, and loose inserts are prohibited. If your book isn't tabbed and organized correctly before test day, you'll burn valuable minutes flipping through hundreds of pages during a 3-hour window that also has to cover 80 questions.
Also note that Delaware's code adoption is changing: the current verified outline references the 2020 NEC, but Delaware has adopted the 2023 NEC effective January 1, 2026, and the Board specifies the most recently adopted edition for its exams. Confirm Prov's assigned exam-book edition before you buy or tab a code book - using the wrong edition could cost you real points toward that 75% requirement.
A simple four-function calculator is also permitted, which matters for the calculation-heavy questions in domains like Wiring & Protection and Motors & Controls.
Scoring Mechanics, Retakes, and Scheduling
Before you can even sit for the exam, you need Board approval through DELPROS, Delaware's licensing portal. Once approved, you schedule through Prov, which administers the exam both at physical test centers and via Examroom remote proctoring. The exam itself carries a $100 Prov examination fee, separate from the $203 Board application fee, for a combined $303 before you factor in books, liability insurance, or other prep materials. A full cost breakdown is available in the DE-ME Certification Cost 2026: Complete Pricing Breakdown.
If you don't reach 75% on your first attempt, Delaware allows retakes after a minimum seven-day interval - a relatively short wait compared to many other state licensing exams. However, each retake attempt requires paying the Prov exam fee again, so a failed attempt is a real financial setback, not just a scheduling inconvenience.
Timing your first attempt matters. Review the DE-ME Exam Dates 2026: Testing Windows, Deadlines & Scheduling guide to understand how DELPROS approval timelines interact with your target test date, especially if you're trying to license before a renewal cycle or job start date.
| Exam Detail | Specification |
|---|---|
| Total questions | 80 |
| Time limit | 3 hours |
| Passing score | 75% |
| Approximate correct needed | ~60 of 80 |
| Format | Computer-administered, open book |
| Retake wait period | Minimum 7 days |
| Prov exam fee | $100 per attempt |
Building a Score-Focused Study Plan
Since 75% is a fixed target, the most efficient prep strategy isn't studying everything equally - it's studying in proportion to how each domain contributes to your final score, while still covering all ten domains thoroughly enough to avoid a weak point that drags you below 60 correct answers.
General Electrical Knowledge & Plan Reading
- Start with the largest domain first since it has the most point value
- Practice reading plans and schedules under timed conditions
Wiring & Protection, Wiring Methods & Materials
- Work through sizing, protection, and wiring method scenarios with your tabbed code book
- Confirm you're using the correctly adopted NEC edition
Equipment for General Use, Motors & Controls
- Focus on equipment selection logic and motor circuit calculations
- Time yourself using only the four-function calculator you'll bring to the exam
Special Conditions, Special Equipment, Special Occupancies, Communication Systems
- Cover the smaller domains - don't skip them since every question counts equally
- Run a full 80-question, 3-hour timed practice session
This kind of weighted approach is expanded on with weekly checklists and resource lists in the DE-ME Study Guide 2026: How to Pass on Your First Attempt. If you're still deciding how much difficulty to expect relative to your field experience, the How Hard Is the DE-ME Exam? Complete Difficulty Guide 2026 breaks down which domains tend to challenge candidates most.
Running full-length timed simulations on our DE-ME practice test platform before test day is one of the most reliable ways to confirm whether you're consistently clearing 75% under real time pressure, rather than just knowing the material in isolation.
Common Reasons Candidates Miss 75%
A few patterns show up repeatedly among candidates who fall short of the passing score:
- Uneven domain coverage: Spending most of prep time on familiar hands-on domains like Wiring Methods & Materials while neglecting Plan Reading or Communication Systems, which still carry full point value.
- Poor reference organization: Bringing an untabbed or improperly tabbed code book into an open-book exam wastes minutes you don't have across the 3-hour, 80-question format.
- Wrong code edition: With Delaware's shift from the 2020 NEC to the 2023 NEC effective January 1, 2026, using an outdated or incorrect edition can lead to answering based on superseded rules.
- Underestimating pacing: Roughly 2.25 minutes per question doesn't leave room to look up every answer - strong recall still matters even in an open-book format.
- Not verifying eligibility early: Delays in DELPROS approval or incomplete supervisor and education verification can push back your test date and compress your prep window. Review the DE-ME Requirements 2026: Eligibility, Prerequisites & How to Qualify guide well before you plan to test.
Key Takeaway
Most candidates who miss 75% don't fail because they don't know the trade - they fail because their prep time wasn't distributed to match the exam's actual domain weighting.
If you want a broader look at how the passing rate translates into real outcomes for Delaware candidates, the DE-ME Pass Rate 2026: What the Data Shows article puts this 75% threshold into context. And once you're within a week or two of test day, a condensed review like the DE-ME Cheat Sheet 2026: One-Page Review of Must-Know Facts can help lock in the details most likely to appear across all ten domains. You can also run a final round of scored practice sessions on the main practice test site to gauge whether you're ready.
FAQ
You need 75% correct out of 80 total questions, which is approximately 60 correct answers.
The 75% threshold applies to your overall score on the full 80-question exam. There is no separate published minimum score required for each individual domain.
You have 3 hours total for the computer-administered, open-book exam, which averages out to roughly 2.25 minutes per question.
Yes. Delaware requires only a minimum seven-day wait before scheduling a retake, though the Prov exam fee applies again for each attempt.
Not necessarily. Approved references with permanent tabs and highlighting are allowed, but handwritten notes and loose inserts are prohibited, and the 3-hour time limit leaves little room to look up unfamiliar material.