Free practice questions for the Florida Air Conditioning Contractor trade knowledge exam — the open-book DBPR test behind the CILB Class A and Class B licenses — with a written explanation on every answer, in English, Spanish, and Russian.
8 questions, about 4 minutes. No account needed — pick an answer to see whether it's right and read the explanation, the same explanations you get on every question in the full course.
Practice across the full question bank.
Understand why the correct answer works — not just which letter is right.
Spend more time on the questions you miss.
Practice under exam-style time pressure before exam day.
Every question tells you why the correct answer is correct and defines the terms it uses — so you learn the rule, not just the answer.
Questions are written from scratch against the official codes and agency publications for this exam — never copied from the real exam.
Every question and explanation is fully translated, with the English exam term kept alongside — not a shallow machine translation.
LICENA is a practice tool, not a school. We don't promise a pass — we help you understand the material and walk in prepared.
The full Florida Air Conditioning Contractor course is 500 questions across 5 blocks sized to DBPR's nine content areas — Pre-Installation, Sheet Metal Ducts, Installation of Refrigeration and HVAC Systems, Installation of Equipment Components, Maintenance Analysis, Maintenance Service, Safety and Equipment, Energy Management, Indoor Air Quality — written from open sources: the Florida Building Code, Mechanical and Energy Conservation (2023), the official analysis of changes for the 2026 Mechanical code, OSHA 29 CFR 1926 for safety and EPA 40 CFR 82 for refrigerant handling, with every constant stated in calculation questions. The commercial references on DBPR's list (SMACNA manuals, trade textbooks, NFPA standards) are cited by title only.
Exam structure, topics, who needs it and official resources.
The Air Conditioning trade knowledge exam is one of the two exams behind a Florida certified air-conditioning contractor license; the other is Business and Finance. DBPR runs it for the Construction Industry Licensing Board (CILB): Professional Testing, Inc. registers candidates and Pearson VUE delivers the test by computer. Class A is 130 questions in 7.5 hours and Class B is 80 questions in 5 hours, 70% to pass, open book, in English or Spanish. Both classes draw on the same nine content areas, from pre-installation and duct work to maintenance, safety, energy management and indoor air quality. Practice it in the free sample above: no sign-up, with a written explanation on every question.
Florida Statutes 489.105 defines the air-conditioning contractor classes. A Class A contractor's services are unlimited in size; a Class B contractor is capped at 25 tons of cooling and 500,000 Btu of heating in any one system. Both licenses cover installing, maintaining, repairing, altering and extending central cooling, refrigeration, heating and ventilating systems, together with the duct work needed to complete an air-distribution system and the piping and insulation that go with it. A third class, Class C (servicing only), is closed to new applicants: only those who held it on October 1, 1988 may keep it. Under DBPR's Candidate Information Booklet every Division II contractor — every trade outside general, building and residential — passes two exams: Business and Finance, and the trade knowledge exam for the class. To qualify for licensure by examination, Florida Statutes 489.111 requires age 18, good moral character and one of several experience routes, such as four or more years of active work as a skilled worker or foreman with at least one of them as a foreman, or a four-year degree in engineering, architecture or building construction plus one year of experience in the category.
DBPR's Examination Content Information (revised August 2017) gives both classes the same nine areas, with Class A / Class B weights: Pre-Installation 14% / 12%; Sheet Metal Ducts 9% / 9%; Installation of Refrigeration and HVAC Systems 23% / 22%; Installation of Refrigeration and HVAC Equipment Components 14% / 14%; Maintenance Analysis 9% / 10%; Maintenance Service 14% / 14%; Safety and Equipment 9% / 10%; Energy Management 5% / 5%; Indoor Air Quality 3% / 4%. Each share may move by up to three percentage points on a given form. Read it as a plan: installation of systems and components is over a third of either exam, maintenance analysis and service together are nearly a quarter (23% on Class A, 24% on Class B), and every area assumes plan and code reading plus basic math — area and volume, fractions, percentages, right triangles, square roots and simple algebra. The outline's detail lines name the work itself: designing duct systems and sizing pipe, comparing EER and SEER, fabricating duct seams and kitchen hoods, installing split and package systems, chilled-water systems and water towers, testing relays, capacitors and starters, adjusting expansion-valve superheat and pressure controls, cleaning condensers and cooling towers, and working safely with ladders, scaffolds, hoists and cranes.
Only the books on DBPR's Air A / Air B reference list may come into the room, and both classes use the same list. The list valid for 2026 includes the Florida Building Code – Mechanical 2023 and – Energy Conservation 2023, 29 CFR 1926, NFPA 90A, 90B and 96, SMACNA's duct construction standards, Refrigeration & Air Conditioning Technology, the Air Conditioning and Refrigeration Troubleshooting Handbook, the Pipefitters Handbook, a Trane Ductulator, Energy Efficient Building Construction in Florida and the Contractors Manual. The list valid from January 2027 moves to FBC-Mechanical 2026, the July 1, 2026 edition of 29 CFR 1926 and newer NFPA editions, while FBC-Energy Conservation stays at 2023 — if you test in 2027, bring the 2026 Mechanical code. Books must be bound; highlighting and underlining are allowed, handwritten notes and movable tabs are not, and you may not mark the books during the exam. Bring an architect's scale with 1/4" and 1/8" scales. Open book helps with code look-ups, not with the arithmetic — loads, airflow, fan laws, superheat and subcooling still have to be worked against the clock, at about 3.5 minutes per question on Class A (450 minutes for 130) and 3.75 on Class B (300 for 80).
You apply to Professional Testing, Inc., which registers candidates and develops and scores the exams for DBPR (floridaexam.com, 407.264.0562); DBPR's page asks that complete applications and fees reach PTI no later than 30 days before the exam date. Within 72 hours of approval you become eligible to schedule the computer exam with Pearson VUE, online or at 888.204.6230, with an email address, phone number and payment. Ask for Spanish at that point if you want it — DBPR-developed exams are offered in English and Spanish at no extra charge. Bring two forms of signature identification, one of them government-issued; a silent, hand-held, battery-operated, nonprinting calculator without an alphabetic keypad is allowed, and so is a printed word-for-word translation dictionary. Unidentified pilot questions may appear and are not scored, with extra time allowed for them. You receive a photo-bearing result report as soon as you finish; if you fail, you may request a review of the questions you missed within 21 days.
The full LICENA Florida Air Conditioning Contractor course is 500 questions across five blocks sized to DBPR's outline: Pre-Installation, Energy Management & IAQ · Ducts, Air Distribution & Exhaust · Refrigeration & HVAC System Installation · Components, Electrical, Controls & Maintenance Analysis · Maintenance Service & Safety. At 30 questions a day that is under three weeks: one pass to find the gaps, a second pass on the areas you missed, then the timed final in your class's format — Class A, 130 questions in 7.5 hours, or Class B, 80 questions in 5 hours, 70% to pass. Keep the Florida Mechanical and Energy codes open while you practice, because on an open-book exam the skill to build is finding the right section fast. Business and Finance is a separate exam, and anyone who opens refrigerant circuits also needs EPA Section 608 technician certification — the free EPA 608 practice test covers those federal rules, and the free OSHA construction practice test drills the jobsite safety side.
Try the full bank free for 3 days — no card needed. Then $9.99 for your first month and $19.99/month after that if you decide to continue, cancel anytime. A school sells a full prepaid package; this is a question bank you can stop at any time — and you study on your phone, in your language, whenever you have a few minutes.
Continue Florida Air Conditioning practice The free sample above stays free. Creating an account is free — no card needed.LICENA gives you practice questions to study with. We are not an accredited school and we do not guarantee that you will pass any exam.
LICENA provides online practice only. Applications, testing and licensing are handled by the Florida Department of Business and Professional Regulation (DBPR), the Construction Industry Licensing Board (CILB), Professional Testing, Inc. and Pearson VUE — not by LICENA. LICENA is not affiliated with DBPR, CILB, Professional Testing or Pearson VUE.