# Minnesota Master Electrician Exam Guide

> The Minnesota Class A master exam has 80 questions, allows 5½ hours, and requires a 70% passing score. Its average difficulty range is 2.5 to 3.5 rating points, higher than the journeyworker range of 1.5 to 2.5 rating points.

Updated: 2026-11-15

## Prepare for the responsibility behind the license

DLI places the Class A master exam in the group of licenses that allow the holder to be a responsible licensed person for an employer or contractor. That group's average examination difficulty range is 2.5 to 3.5 rating points. Approach your study with that responsibility in mind. Practice explaining the whole decision, including which facts matter, which rule applies, and how you checked the result.

The Class A master exam has 80 questions, a 5½-hour time allowance, and a 70% passing score. DLI's examination guide uses the 2026 NEC. Review the separate [master license requirements](https://minnesotaelectricianexam.com/guides/minnesota-master-electrician-license-requirements/) before treating exam preparation as an application plan.

## The same length does not mean the same difficulty

| Feature | Class A master examination |
|---|---|
| Length | 80 questions |
| Time | 5½ hours |
| Passing score | 70% |
| Average difficulty | 2.5 to 3.5 rating points |
| Difficulty scale | 1 to 5 rating points, with 5 rating points most difficult |

DLI gives the journeyworker examination an average range of 1.5 to 2.5 difficulty points. It describes the hardest questions as requiring multiple code rules or multiple or complex calculations. The guide says approximately 50% of questions fall within the overall difficulty range assigned to the license type. The range is therefore not a label for every individual question.

As study advice, combine topics after you can solve them separately. Explain why a selected value applies before carrying it into the next step. If you cannot explain a transition, return to that rule instead of repeating the arithmetic and hoping the same answer appears.

## Build broad subject coverage

The master knowledge-area chart includes branch circuits, feeder and service calculations, grounding and bonding, conductors, raceways, equipment, and motors. Applied theory includes equations, percentages, voltage drop, series and parallel circuits, transformer connections, and available transformer secondary short-circuit current. Keep a coverage list and mark topics that need a fresh explanation.

Do not let familiar work crowd out less familiar subjects. Try a mixed practice session, then group errors by the decision you missed. A grounding error, a motor-current error, and a voltage-drop error should lead to different follow-up work. Use [calculation study](https://minnesotaelectricianexam.com/guides/how-to-pass-the-calculations/) to organize that work.

DLI does not publish how many master questions are calculations. Avoid assigning a predicted question count to any topic. Use the listed knowledge areas to choose breadth and your own errors to choose depth.

## Learn the answer formats

DLI illustrates a single-correct-answer multiple-choice format. It also illustrates a negative-response format. A sample demonstrates an absolute-answer multiple-choice format. Another sample demonstrates a common multiple-choice format. The guide says its sample knowledge areas may not apply to every exam class.

Incorrect answer choices are plausible, and a question may include extra information. Before calculating, write down the requested result during study. Explain which information you used and which information did not affect that result. For a negative-response question, restate what must be excluded before evaluating the options.

Questions have equal point value unless stated otherwise, and there is no partial credit. Make checking the final selection part of your routine. A sound intermediate result still needs to answer the actual question.

## Practice with the supplied tools in mind

DLI supplies a soft-cover code book without tabs or other aids, a Laws and Rules Booklet, and a common desk calculator. The calculator includes basic arithmetic, square root, and percentage functions. Other materials and electronic devices, including phones, are not allowed in the building.

Use [untabbed-book practice](https://minnesotaelectricianexam.com/guides/studying-with-an-untabbed-code-book/) to rehearse locating the right subject. DLI says the majority of questions are intended to be answered without consulting references. Build recall alongside lookup skill. Check your understanding of licensing duties through [Laws and Rules practice](https://minnesotaelectricianexam.com/laws-and-rules/), especially before studying the [contractor role](https://minnesotaelectricianexam.com/guides/minnesota-electrical-contractor-license/).

## Apply the stated assumptions

Unity power factor is assumed unless a specific question states otherwise. DLI uses inch-pound units in exam questions and answers, while allowing SI or inch-pound units for absolute-answer responses. Read any stated exception before selecting a method. During practice, carry units through your work and reread the requested quantity before choosing the final answer.

## Read pass rates by measure

The January 15, 2026 Board of Electricity report gives a 46% first-attempt master pass rate for 2025. It gives 50% by total examinations. It gives 63% by test taker. Do not combine those measures into a single probability for your own attempt.

Use the [pass-rate page](https://minnesotaelectricianexam.com/pass-rates/) as background, then test your preparation with a [master practice test](https://minnesotaelectricianexam.com/practice-test/master/). Review the reasoning behind misses before taking another set. This independent site's practice material is a study aid, not a promise that you will pass.

## Questions people ask

### What is the master exam length?

The Class A master examination has 80 questions and a 5½-hour limit.

### What makes the master difficulty range different?

The master average range is 2.5 to 3.5 difficulty points; DLI associates higher difficulty with multiple code rules or complex calculations.

### What reference materials are supplied?

DLI supplies a soft-cover untabbed code book, a Laws and Rules Booklet, and a desk calculator.

### What was the reported first-attempt pass rate for 2025?

The January 15, 2026 Board of Electricity report gives a 46% master first-attempt pass rate for 2025.

## Sources

- [DLI Electrical license examination guide](https://www.dli.mn.gov/sites/default/files/pdf/LicensingExaminationGuide.pdf) (checked 2026-11-15)
- [Board of Electricity minutes, January 15, 2026](https://www.dli.mn.gov/sites/default/files/pdf/boe-minutes011526.pdf) (checked 2026-11-15)

Page: https://minnesotaelectricianexam.com/guides/minnesota-master-electrician-exam/