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Florida Class A Air Conditioning Contractor EXAM QUESTIONS
AND CORRECT VERIFIED SOLUTIONS LATEST UPDATE THIS
YEAR – JUST RELEASED
Florida Class A Air Conditioning Contractor Exam
10-Line Exam Coverage in Points Form
1. Exam Logistics & Pass Requirements – 100-question trade exam, 3 hours 50 minutes
time limit, 75% passing score required, open-book format; Business & Law exam also
required (pass both). Administered by DBPR/CILB.
2. License Scope – Unlimited in system size/tonnage; includes installation, design, repair of
central air, refrigeration, heating, ventilation, ductwork, piping, insulation, and boilers.
Does NOT include septic, electrical power wiring (line side), or potable water
connections.
3. Exam Topic Weighting – HVAC General (20%); Heating/Low & High Pressure Boilers
(18%); Ducts/Ventilation (15%); Controls (15%); Piping (10%); Fuel Gas (8%); Load
Calculations/Psychrometrics (7%); Insulation (4%); Safety (3%).
4. Codes & References – Florida Building Code – Mechanical (2023), Energy Conservation
(2023), Fuel Gas; NFPA 90A/90B/96; OSHA 29 CFR 1926; SMACNA Duct Standards. Open-
book with approved references only; highlight/tab strongly recommended.
5. HVAC Design & Load Calculations – Manual J/Manual D principles; psychrometric
analysis; equipment selection; ACCA duct slide rule; calculating heating/cooling loads;
system sizing.
6. Refrigeration Cycle & Components – Vapor-compression cycle; compressors,
condensers, evaporators, metering devices; superheat/subcooling measurement;
refrigerants and EPA Section 608; pressure-temperature relationships.
7. Air Distribution & Ventilation – Duct construction (metal/flexible/fiberglass); SMACNA
standards; duct sizing and airflow balancing; NFPA 90A/90B for fire/smoke dampers;
ventilation requirements.
8. Electrical & Controls – HVAC electrical schematics; troubleshooting controls;
thermostats, relays, contactors; low-voltage and line-voltage wiring; motor types (PSC,
ECM); variable speed drives.
9. Piping & Fuel Gas Systems – Pipefitting; copper and steel piping; refrigerant lines; fuel
gas piping (natural gas/LP); pressure testing; brazing/soldering; code-compliant routing.
10. Business & Law (Separate Exam) – Contract law, liens, workers' compensation, general
liability insurance, Florida Statutes Chapters 455/489, CILB rules, financial
responsibility. Must pass both trade and business exams to be licensed.
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100 MCQ Questions with Rationales
1. A Florida Class A Air Conditioning Contractor license is unlimited in scope, meaning:
A) The contractor can perform any type of construction work
B) The contractor can work on HVAC systems of any size or tonnage
C) The contractor is exempt from local building permits
D) The contractor may design electrical systems
Correct Answer: B
Rationale: A Class A license allows work on any HVAC system regardless of size (unlimited
tonnage), whereas a Class B license is limited to 25 tons cooling and 500,000 BTU heating .
2. What is the minimum passing score required for the Florida Class A trade examination?
A) 65%
B) 70%
C) 75%
D) 80%
Correct Answer: C
Rationale: Applicants must pass both the trade exam and the Business and Law examination
with a score of 75% or above on each .
3. How many questions are on the Florida Class A Air Conditioning Contractor trade exam?
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A) 50
B) 75
C) 80
D) 100
Correct Answer: D
Rationale: The Class A trade exam consists of 100 questions .
4. What is the time limit for completing the Florida Class A trade examination?
A) 2 hours
B) 3 hours
C) 3 hours and 50 minutes
D) 4 hours
Correct Answer: C
Rationale: Candidates have 3 hours and 50 minutes to complete the 100-question Class A trade
exam .
5. Which of the following is NOT included in the scope of work for a Class A Air Conditioning
Contractor?
A) Installation of ductwork
B) Piping and insulation
C) Electrical power wiring on the line side of the disconnect switch
D) Condensate drain installation
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Correct Answer: C
Rationale: The scope of work for a Class A contractor does NOT include electrical power wiring
on the line side of the disconnect switch .
6. What is the largest topic area on the Florida Class A exam by percentage?
A) Heating, Low and High Pressure Boiler
B) HVAC General
C) Ducts and Ventilation
D) HVAC Controls
Correct Answer: B
Rationale: HVAC General is the largest topic area on the Class A exam, comprising 20% of the
content .
7. According to the Florida Class A exam outline, what percentage covers Heating, Low and
High Pressure Boilers?
A) 10%
B) 15%
C) 18%
D) 20%
Correct Answer: C
Rationale: Heating, Low and High Pressure Boiler topics comprise 18% of the Class A exam
content .
Florida Class A Air Conditioning Contractor EXAM QUESTIONS
AND CORRECT VERIFIED SOLUTIONS LATEST UPDATE THIS
YEAR – JUST RELEASED
Florida Class A Air Conditioning Contractor Exam
10-Line Exam Coverage in Points Form
1. Exam Logistics & Pass Requirements – 100-question trade exam, 3 hours 50 minutes
time limit, 75% passing score required, open-book format; Business & Law exam also
required (pass both). Administered by DBPR/CILB.
2. License Scope – Unlimited in system size/tonnage; includes installation, design, repair of
central air, refrigeration, heating, ventilation, ductwork, piping, insulation, and boilers.
Does NOT include septic, electrical power wiring (line side), or potable water
connections.
3. Exam Topic Weighting – HVAC General (20%); Heating/Low & High Pressure Boilers
(18%); Ducts/Ventilation (15%); Controls (15%); Piping (10%); Fuel Gas (8%); Load
Calculations/Psychrometrics (7%); Insulation (4%); Safety (3%).
4. Codes & References – Florida Building Code – Mechanical (2023), Energy Conservation
(2023), Fuel Gas; NFPA 90A/90B/96; OSHA 29 CFR 1926; SMACNA Duct Standards. Open-
book with approved references only; highlight/tab strongly recommended.
5. HVAC Design & Load Calculations – Manual J/Manual D principles; psychrometric
analysis; equipment selection; ACCA duct slide rule; calculating heating/cooling loads;
system sizing.
6. Refrigeration Cycle & Components – Vapor-compression cycle; compressors,
condensers, evaporators, metering devices; superheat/subcooling measurement;
refrigerants and EPA Section 608; pressure-temperature relationships.
7. Air Distribution & Ventilation – Duct construction (metal/flexible/fiberglass); SMACNA
standards; duct sizing and airflow balancing; NFPA 90A/90B for fire/smoke dampers;
ventilation requirements.
8. Electrical & Controls – HVAC electrical schematics; troubleshooting controls;
thermostats, relays, contactors; low-voltage and line-voltage wiring; motor types (PSC,
ECM); variable speed drives.
9. Piping & Fuel Gas Systems – Pipefitting; copper and steel piping; refrigerant lines; fuel
gas piping (natural gas/LP); pressure testing; brazing/soldering; code-compliant routing.
10. Business & Law (Separate Exam) – Contract law, liens, workers' compensation, general
liability insurance, Florida Statutes Chapters 455/489, CILB rules, financial
responsibility. Must pass both trade and business exams to be licensed.
, Page 2 of 109
100 MCQ Questions with Rationales
1. A Florida Class A Air Conditioning Contractor license is unlimited in scope, meaning:
A) The contractor can perform any type of construction work
B) The contractor can work on HVAC systems of any size or tonnage
C) The contractor is exempt from local building permits
D) The contractor may design electrical systems
Correct Answer: B
Rationale: A Class A license allows work on any HVAC system regardless of size (unlimited
tonnage), whereas a Class B license is limited to 25 tons cooling and 500,000 BTU heating .
2. What is the minimum passing score required for the Florida Class A trade examination?
A) 65%
B) 70%
C) 75%
D) 80%
Correct Answer: C
Rationale: Applicants must pass both the trade exam and the Business and Law examination
with a score of 75% or above on each .
3. How many questions are on the Florida Class A Air Conditioning Contractor trade exam?
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A) 50
B) 75
C) 80
D) 100
Correct Answer: D
Rationale: The Class A trade exam consists of 100 questions .
4. What is the time limit for completing the Florida Class A trade examination?
A) 2 hours
B) 3 hours
C) 3 hours and 50 minutes
D) 4 hours
Correct Answer: C
Rationale: Candidates have 3 hours and 50 minutes to complete the 100-question Class A trade
exam .
5. Which of the following is NOT included in the scope of work for a Class A Air Conditioning
Contractor?
A) Installation of ductwork
B) Piping and insulation
C) Electrical power wiring on the line side of the disconnect switch
D) Condensate drain installation
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Correct Answer: C
Rationale: The scope of work for a Class A contractor does NOT include electrical power wiring
on the line side of the disconnect switch .
6. What is the largest topic area on the Florida Class A exam by percentage?
A) Heating, Low and High Pressure Boiler
B) HVAC General
C) Ducts and Ventilation
D) HVAC Controls
Correct Answer: B
Rationale: HVAC General is the largest topic area on the Class A exam, comprising 20% of the
content .
7. According to the Florida Class A exam outline, what percentage covers Heating, Low and
High Pressure Boilers?
A) 10%
B) 15%
C) 18%
D) 20%
Correct Answer: C
Rationale: Heating, Low and High Pressure Boiler topics comprise 18% of the Class A exam
content .
