These are original Florida HVAC exam questions written to match the Florida Air Conditioning Contractor (Class A/B) exam, not leaked or real exam items. Our bank holds 341 practice questions across 10 content areas, each with an answer and a written explanation. Below you will find a few representative samples covering refrigeration, electrical, EPA 608, and code so you can see the style before you start.
The Florida Air Conditioning Contractor exam is administered by Professional Testing, Inc. for the DBPR Construction Industry Licensing Board (CILB). It is open book and multiple choice, and you need 70% to pass. The Class A Trade Knowledge exam runs 130 questions in two open-book sessions of 65 scored questions each, and every applicant also sits a separate Business and Finance exam of 120 questions. Working through realistic florida air conditioning contractor exam questions and answers is the fastest way to learn the format and where to look in your references.
Sample Florida HVAC exam questions
Here are four sample hvac contractor practice questions for Florida, each from a different content area. Every real question in the bank includes the same kind of explanation so a wrong answer becomes a lesson.
Q: In a basic vapor-compression refrigeration cycle, which component absorbs heat from the conditioned space?
A) Condenser B) Compressor C) Evaporator D) Metering device
Answer: C — The evaporator is the low-pressure, low-temperature heat exchanger where liquid refrigerant boils and absorbs heat from the indoor air. The condenser rejects that heat outdoors.
Q: A single-phase PSC motor will not start and hums when energized. The most likely cause is a:
A) Open thermal overload B) Failed run/start capacitor C) Reversed line polarity D) Tripped float switch
Answer: B — A weak or open capacitor robs the motor of starting torque, so it hums and may trip on overload without turning. Checking the capacitor with a meter is the standard first step.
Q: Under EPA Section 608, a technician must evacuate a small appliance (5 lbs or less of refrigerant) to what vacuum before opening it, when recovery-only equipment manufactured after Nov. 15, 1993 is used?
A) 0 inches Hg B) 4 inches Hg C) 10 inches Hg D) 4 inches of vacuum (Hg)
Answer: D — For small appliances using recovery equipment made after Nov. 15, 1993, the required recovery level is 4 inches of mercury vacuum. Knowing the 608 recovery thresholds is commonly tested.
Q: Per the Florida Building Code, Mechanical, combustion air and clearances around fuel-burning equipment are required primarily to:
A) Reduce equipment noise B) Ensure safe combustion and prevent fire/CO hazards C) Lower refrigerant charge D) Increase SEER rating
Answer: B — Adequate combustion air and listed clearances prevent incomplete combustion, carbon monoxide buildup, and ignition of nearby materials. These code provisions are safety-driven.
These are original practice questions, not real exam questions. We do not have, copy, or distribute live CILB exam content. Every item is written from scratch to mirror the topics and difficulty of the real exam, which keeps you on the right side of the rules and still fully prepared.
What every question gives you
Each of our florida hvac exam questions is multiple choice with one best answer and a written explanation that tells you why the right answer is right and why the distractors are wrong. Because the live exam is open book, the explanations also point you toward the kind of reference where you would confirm the answer. The full bank is organized into 10 content areas:
- Refrigeration Cycle & Components
- Electrical, Motors & Controls
- Heat Load, Airflow & Duct Design
- Florida Building/Mechanical & Energy Code
- Installation & System Startup
- Service, Diagnostics & Troubleshooting
- EPA 608, Refrigerants & Recovery
- Safety & OSHA
- Business, Law & Licensing (Ch. 489)
- HVAC Tools & Measurement
How to study with the questions
Use the questions as a diagnostic first, then as a drill. Run a mixed set to find your baseline, then filter to your two or three weakest content areas and hammer them. Read every explanation, even on questions you got right, because the reasoning is where the learning sticks. When you are scoring consistently above 70% on individual topics, switch to a full timed run to rehearse the two-session pacing.
Pair the questions with the Florida HVAC study guide so each missed item sends you to the concept behind it, and take a free practice test to see your per-topic scoring. For pacing, open a full exam simulation. If you are new to the process, start with how to pass the Florida HVAC exam.
Before you test: eligibility and access
To qualify for the Air Conditioning Contractor license you generally need four years of experience. Class A carries no system size limit, while Class B is limited to 25 tons of cooling and 500,000 BTU of heating per system. Confirm you meet the rules in the full license requirements and review the exam overview before you schedule. Access to all 341 questions is $49 for 3-month access or $89 for lifetime access, and the first questions are free to start with no account.
See the questions for yourself
Try the free quiz now, no account needed, then open the full study guide when you are ready to work through all 341 questions.