Oklahoma Mechanical Contractor (HVAC) Exam Prep

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Your access starts when you do: the days begin the first time you open the course, not at checkout (or 14 days after purchase, whichever comes first).

Business & Law is 75% off with this classification. Add it only if you want it, for the same term: $24.75 for 30 days, $32.25 for 60 days, $42.25 for 90 days.

Official sitting

Oklahoma Mechanical Contractor (HVAC) exam at a glance

The Oklahoma Mechanical Contractor (HVAC) exam has 90 questions and a time limit of 4 hours. That works out to about 2.7 minutes per question. This Oklahoma license also requires the state’s separate Business & Law exam. Figures are from the official candidate bulletin.

Questions90
Time4 hours

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: PSI OK bulletin 634 (effective 9/11/2026); OAC 158:50-9-1. How we source exam facts

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What’s included

51,000+ 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.

360 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. Start Here: Your Oklahoma HVACR Contractor Unlimited Exam and How to Use This Guide
  2. Electrical Knowledge and Controls
  3. Natural Gas, and Safety
  4. Air Distribution Systems, Part 1: Ducts, Sizing, Construction and Insulation
  5. Heating Systems

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Common questions about this exam

How many questions are on the Oklahoma Mechanical Contractor (HVAC) exam?

The Oklahoma Mechanical Contractor (HVAC) exam has 90 questions and a time limit of 4 hours, about 2.7 minutes per question. Check the current board bulletin before you book.

Do I also need the Business & Law exam in Oklahoma?

Yes. This Oklahoma license also requires the state’s separate Business & Law exam. That exam has 50 questions, 2 hours. Oklahoma Business & Law prep is 75% off when you add it to this classification for the same term.

How much practice does this prep include?

It includes 4 full-length practice exams and 360 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 Oklahoma Mechanical Contractor (HVAC) guide runs to roughly 51,442 words in 5 sections, starting with “Start Here: Your Oklahoma HVACR Contractor Unlimited Exam and How to Use This Guide” and ending with “Heating Systems”.

How long do I get access?

Choose 30, 60 or 90 days at checkout. Your days do not start at checkout: they begin the first time you open the course (or 14 days after purchase, whichever comes first). Access 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 Oklahoma Mechanical Contractor (HVAC) 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 prep

This prep is built specifically for the Oklahoma Mechanical Contractor (HVAC) examination and includes a 51,000+-word study guide written for this exam, 4 full-length practice exams and 360 practice questions, each with a written explanation.

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. Your days start the first time you open the course, not at checkout (or 14 days after purchase, whichever comes first), and access 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.