- The NV-C2 exam is 80 questions, closed book, with 240 minutes and a 56-question (70%) passing threshold.
- PSI charges $95 for the trade exam alone or $140 when paired with the CMS on the same day.
- Conductors and Cables and Safety Information are tied as the largest domains - prioritize them.
- Licensure needs Board approval, the CMS, and four years of relevant experience within the prior 15 years.
Exam Snapshot: The Numbers You Must Memorize
Before you touch a single practice question, lock in the mechanical facts of the Nevada State Contractors Board C-2 trade examination. This is the exam that qualifies an individual to hold the electrical contractor C-2 classification, and it's administered by PSI on the Board's behalf. Every candidate should be able to recite these numbers without hesitation:
- Format: 80 multiple-choice questions
- Time limit: 240 minutes
- Passing score: 56 correct answers (70%)
- Book policy: Closed book, except for code references explicitly authorized by the current PSI content outline
That last point trips up a surprising number of candidates. This is not an open-book exam in the way some other trade tests are - you don't get to bring whatever references you like. You get exactly what the current PSI content outline for this exam permits, nothing more. Before test day, confirm what's on that approved list and get comfortable navigating it under time pressure, because fumbling through an index during a 240-minute exam wastes minutes you don't have back.
For a deeper breakdown of what "70%" really means in practice, including how the raw question count maps to the scaled requirement, see the dedicated NV-C2 Passing Score guide. And if you're still weighing how tough this exam actually is relative to your background, the How Hard Is the NV-C2 Exam breakdown walks through the difficulty factors domain by domain.
Registration and Fee Mechanics
PSI's fee structure for this exam is straightforward but worth planning around. You'll pay $95 if you schedule the C-2 trade exam by itself, or $140 if you schedule the trade exam together with the CMS (Contractors Management Survey) exam on the same appointment. Bundling the two can save both time and a separate trip to the test center, provided you feel equally prepared for both components.
Remember that passing the trade exam is only one piece of the licensure puzzle. You still need Board approval and the CMS before a license is issued - the trade exam doesn't stand alone. For a full accounting of every dollar involved, from testing fees to the license itself, review the NV-C2 Certification Cost breakdown.
Key Takeaway
If you plan to take the CMS anyway, scheduling it alongside the trade exam for $140 is more efficient than paying for two separate PSI appointments.
All 15 Domains at a Glance
The NV-C2 content outline spans 15 domains. Skimming this list the week before your exam is a fast way to catch blind spots. For the full explanation of what each domain actually tests, bookmark the NV-C2 Exam Domains Guide - but here's the condensed version for quick review.
| # | Domain | Cheat-Sheet Focus |
|---|---|---|
| 1 | General Electrical Knowledge | Foundational terminology and code structure |
| 2 | Service, Feeders, and Branch Circuits | Sizing, calculations, and load considerations |
| 3 | Grounding and Bonding | System vs. equipment grounding distinctions |
| 4 | Conductors and Cables | Largest domain - ampacity, insulation types, applications |
| 5 | Raceways and Boxes | Fill calculations and support requirements |
| 6 | Special Occupancies and Equipment | Hazardous locations and specialty installations |
| 7 | Electrical Power | Power distribution fundamentals |
| 8 | Motors | Sizing, protection, and control circuits |
| 9 | Low Voltage | Class 1, 2, 3 circuit distinctions |
| 10 | Lighting | Fixture installation and circuiting |
| 11 | Illuminated Signs | Sign circuit and disconnect requirements |
| 12 | Fire Detection and Alarm Systems | Wiring methods for life-safety systems |
| 13 | Safety Information | Largest domain - PPE, hazard recognition, procedures |
| 14 | Transmission Lines | Overhead and underground line basics |
| 15 | Overcurrent Protection | Breakers, fuses, and coordination |
Notice the classification scope tied to all of this: the C-2 license covers installation of electrical wires, fixtures, appliances, apparatuses, raceways, and conduits. Every domain above ultimately supports that scope of work, so questions tend to circle back to practical, jobsite-relevant installation scenarios rather than abstract theory.
The Two Largest Domains: Conductors & Cables and Safety Information
If you only have time to deep-review two domains before test day, make them these two - Conductors and Cables and Safety Information are tied as the largest domains on the exam, meaning they carry more weight in the question pool than any of the other 13 content areas.
Domain 4: Conductors and Cables
Expect questions that test your ability to select the correct conductor type, size, and insulation rating for a given application, along with ampacity adjustments for temperature and bundling.
- Conductor sizing and ampacity tables
- Insulation type selection for wet, dry, and high-heat locations
- Derating factors for multiple current-carrying conductors
Domain 13: Safety Information
This domain isn't just "wear your PPE" trivia - it tests procedural knowledge that reflects real jobsite hazard scenarios an electrical contractor supervises daily.
- Lockout/tagout sequencing
- Approach boundaries and shock hazard recognition
- Safe work practices around energized equipment
Because these two domains are tied for the top weighting, don't assume Safety Information is a "soft" section you can skim. Treat it with the same rigor as your conductor sizing calculations.
Licensure Requirements Beyond the Exam
Passing the trade exam gets you partway there, but a Nevada C-2 license requires more. The Board requires:
- Board approval of the application
- Successful completion of the CMS
- A qualifying individual with four years of relevant experience earned within the prior 15 years (approved education may substitute for up to three of those years)
Once licensed, Nevada contractor licenses operate on a biennial cycle. The Board charges a $300 application fee and a $600 biennial license fee - costs to factor into your long-term planning, not just your exam-day budget. If you're unsure whether your work history or coursework qualifies, the NV-C2 Requirements guide walks through eligibility scenarios in detail.
A One-Week Final Review Schedule
If you've already done the bulk of your studying and just need a structured final push, allocate your last week by domain weight rather than by domain count. This isn't a full study plan - for that, see the NV-C2 Study Guide - but it is a practical way to sequence a last review push around the two heaviest domains.
Conductors and Cables Deep Review
- Rework ampacity and derating problems until calculations are automatic
- Review insulation type applications for each installation environment
Safety Information Deep Review
- Walk through lockout/tagout steps in order, out loud
- Review shock protection boundaries and PPE selection criteria
Remaining 13 Domains, Rapid Pass
- Skim each domain from the cheat sheet above, flag weak spots
- Take a timed full-length practice run to test 240-minute pacing
Logistics and Light Review
- Confirm PSI appointment, ID requirements, and approved code references
- Light review only - no new material
Common Traps on Exam Day
A few mistakes show up repeatedly among candidates who otherwise know the material well:
- Misreading the closed-book policy. Assuming you can bring any code reference, rather than only what's authorized by the current PSI content outline, wastes prep time on the wrong materials.
- Poor time budgeting. With 80 questions in 240 minutes, spending too long on early Conductors and Cables questions can squeeze your time on later domains like Overcurrent Protection or Transmission Lines.
- Treating Safety Information as filler. Since it's tied with Conductors and Cables for the largest domain, under-preparing here directly threatens your 56-question passing target.
- Forgetting the licensure sequence. Passing the trade exam doesn't grant a license by itself - Board approval and the CMS still need to happen.
For candidates who want data-informed context on how these traps play out in aggregate, the NV-C2 Pass Rate article discusses what's known about outcomes on this exam. And if you're trying to decide whether pursuing the C-2 classification fits your career goals at all, Is the NV-C2 Certification Worth It? lays out the ROI considerations, while the NV-C2 Salary Guide covers earnings potential for licensed contractors.
Key Takeaway
Run at least one full-length timed practice session using a realistic practice test platform before test day so the 240-minute pacing feels familiar rather than stressful.
Once you're comfortable with pacing, revisit the domain list one more time using practice questions organized by domain to confirm your weakest areas have actually improved, not just felt more familiar.
FAQ
The exam contains 80 multiple-choice questions, and candidates are given 240 minutes to complete it.
You need 56 correct answers, which equals 70%.
No. The Board classifies it as closed book, except for code references expressly authorized by the current PSI content outline.
PSI charges $95 for the trade exam alone, or $140 if you schedule the trade exam and the CMS together.
Conductors and Cables and Safety Information are tied as the largest domains on the exam, so they deserve extra review time.
Use this page as a quick-reference companion in the final days before your appointment, and pair it with the deeper guides linked above - including the NV-C2 Exam Dates guide for scheduling logistics - so nothing about the mechanics of test day catches you off guard.