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Colorado Electrician Practice Test

1,600+ NEC 2023 questions covering the topics on the Colorado PSI exam. Detailed explanations with exact code article references.

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What to Expect on the Colorado Electrician Exam

Colorado has a statewide journeyman electrician license through the Department of Regulatory Agencies (DORA). The exam is administered by PSI: 90 questions, 240 minutes (4 hours), 70% passing score, and an exam fee of $78 initial, $73 retest (per the PSI bulletin). Colorado uses a hybrid open/closed book format: the first section is closed book, and the second section permits the NEC. This makes Colorado's exam distinctly different from most states that are fully open book. Candidates must be familiar with key NEC values, formulas, and wire sizing tables without needing the codebook, while also knowing how to navigate the NEC under time pressure during the open section. Colorado requires 8,000 hours of apprenticeship training and a completed application through DORA before scheduling the PSI exam. For exams administered on or after August 1, 2026, questions are based on the 2026 NEC. The most frequently tested articles include Article 220 (load calculations), Article 250 (grounding), Article 310 (conductors), and Article 430 (motors). Denver, Colorado Springs, Aurora, and Fort Collins are the major markets. Colorado's booming residential and commercial construction market drives strong demand for licensed journeymen. The practice questions below are aligned to NEC 2023 and the Colorado DORA PSI exam format.

Colorado Journeyman Exam At a Glance

Questions

90

Time Limit

240 min

Passing Score

70%

Format

Varies

Vendor

PSI

Exam Fee

$78 ($73 retest)

Master Electrician Exam

90 questions · 240 min · 70% passing · $78 ($73 retest)

What the Colorado Exam Covers

The PSI exam draws from the NEC 2026 across 13 topic areas. GetLicenseReady covers all of them with full explanations and code references.

NEC General Knowledge
Electrical Calculations
Wiring Methods & Installation
Grounding & Bonding
Overcurrent Protection
Services & Feeders
Branch Circuits & Receptacles
Motors & Controllers
Conductors & Cables
Boxes & Fittings
Transformers
Special Equipment
Hazardous Locations

Tips for the Colorado PSI Exam

  • The Colorado exam is closed book, so you must memorize key NEC values, wire sizes, and load calculation formulas before test day.
  • PSI delivers the exam at its own network of PSI test centers. Arrive 30 minutes before your appointment with your ID.
  • PSI questions often test the specific NEC article number, not just the concept. Knowing where a rule lives matters.
  • Budget your time: spend no more than 90 seconds per question on the first pass, then return to flagged items.
NEC Edition: Colorado currently tests on NEC 2026. GetLicenseReady questions are written to the NEC 2023. Most core rules carry over, but some requirements changed between editions, so study with the 2026 codebook you will use on exam day. See what changed between NEC 2020 and 2023 →

Colorado Electrician Exam FAQ

How many questions are on the Colorado Journeyman exam?

90 questions, 240 minutes, 70% passing score. Administered by PSI.

Is the Colorado electrician exam open book?

Open book policy varies by jurisdiction in Colorado. Check with Colorado Department of Regulatory Agencies (DORA) - State Electrical Board for your specific testing location.

What NEC edition does Colorado test on?

Colorado tests on NEC 2026. GetLicenseReady questions are written to the NEC 2023. Most core rules carry over, but study with the 2026 codebook you will use on exam day.

How do I register for the Colorado exam?

Register through the Colorado Department of Regulatory Agencies (DORA) - State Electrical Board. The exam fee is $78 ($73 retest).

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1,600+ practice questions with NEC 2023 citations and detailed explanations. Start free, no card required.

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