Page 1 of 109
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. Licensing & Scope – Unlimited system size; includes design, installation, repair, and
maintenance of HVAC, refrigeration, heating, and ventilation systems; excludes potable
water/sewer lines and line-side electrical power wiring; ability to repair power wiring for
HVAC circuits expanded by pending legislation
2. Exam Logistics & Requirements – Administered by DBPR/CILB; 100-question trade exam;
3 hours 50 minutes time limit; 75% passing score required; open-book format with
approved references only; must obtain license within 4 years of passing exam
3. Business & Law (Separate Exam Required) – Chapter 489 (Contracting) and Chapter 455
(DBPR); Construction Lien Law (Chapter 713); workers’ compensation (Chapter 440);
business structures, insurance, bonds, contracts, and change orders
4. HVAC Design & Load Calculations – Manual J (residential) and Manual N (commercial)
load calculations; psychrometrics; sensible and latent heat; equipment sizing; ACCA
Manual D duct design principles
5. Refrigeration Cycle & Components – Vapor-compression cycle; compressors
(reciprocating, scroll, rotary), condensers, evaporators, metering devices (TXV vs. fixed
orifice); superheat, subcooling, and compression ratio; refrigerants and EPA Section 608
6. Air Distribution & Ventilation – Duct construction, sizing, insulation, and leakage testing;
SMACNA standards; fire/smoke dampers; supply/return grilles; ventilation (ASHRAE
62.1/62.2); exhaust and make-up air systems
7. Electrical Systems & Controls – Low-voltage (24V) and line-voltage wiring; motors (PSC,
ECM), contactors, relays, capacitors; control wiring and thermostat connections; NEC
requirements; variable speed drives
8. Codes & Approved References – Florida Building Code – Mechanical (2023), Energy
Conservation (2023), and Fuel Gas; NFPA 90A/90B/96; OSHA 29 CFR Part 1926; SMACNA
Duct Construction Standards; Trane Ductulator; Pipefitters Handbook
9. Service, Troubleshooting & Safety – Airflow measurement (anemometer), static
pressure testing, refrigerant charging methods (subcooling for TXV, superheat for fixed
orifice); EPA Section 608 compliance; OSHA safety and fall protection; PPE requirements
10. Energy Efficiency & System Performance – SEER (minimum 15 in FL), EER, HSPF, AFUE;
Florida Energy Code compliance; duct leakage testing; energy conservation and system
optimization
, Page 2 of 109
100 MCQ Questions with Rationales
1. What is the maximum cooling capacity limitation for a Florida Class A Air Conditioning
Contractor license?
A) 25 tons
B) 50 tons
C) 100 tons
D) Unlimited system size
Correct Answer: D
Rationale: A Class A Air Conditioning Contractor license is unlimited in scope, allowing work on
HVAC systems of any size or tonnage without capacity limitations. This is the primary distinction
from a Class B license, which is limited to 25 tons cooling and 500,000 BTU heating .
2. What is the passing score required for the Florida Class A trade examination?
A) 65%
B) 70%
C) 75%
D) 80%
Correct Answer: C
Rationale: Candidates must pass the trade examination with a score of 75% or higher. This
requirement applies to both the trade exam and the separate Business and Law examination .
, Page 3 of 109
3. A Florida Class A Air Conditioning Contractor may NOT perform which of the following?
A) Installation of ductwork
B) Repair of power wiring for HVAC circuits
C) Installation of potable water lines
D) Condensate drain installation
Correct Answer: C
Rationale: The Class A scope explicitly excludes potable water lines and sanitary sewer lines.
Pending legislation may clarify additional tasks, but potable water lines remain outside the
scope .
4. How long does a candidate have to obtain their license after passing the state certification
examination?
A) 1 year
B) 2 years
C) 4 years
D) 5 years
Correct Answer: C
Rationale: Board rules require candidates to obtain their license within 4 years of receiving their
exam score. Failure to do so may require retaking the examination .
5. Which application is used for an individual seeking a Certified Class A license after passing
the state exam?
, Page 4 of 109
A) CILB 5-G
B) CILB 5-E
C) DBPR 20
D) CILB 5-R
Correct Answer: A
Rationale: CILB 5-G is the application for a Certified Class A Air Conditioning Contractor as an
Individual. This application is submitted after passing the state certification examination .
6. According to the Florida Building Code – Energy Conservation, what is the minimum SEER
rating for new residential air conditioning systems in Florida?
A) 13 SEER
B) 14 SEER
C) 15 SEER
D) 18 SEER
Correct Answer: C
Rationale: The Florida Energy Code establishes minimum efficiency standards for HVAC
equipment, with residential systems generally required to meet at least 15 SEER. Higher
efficiency systems may be required depending on the specific installation .
7. What is the maximum cooling capacity limitation for a Class B Air Conditioning Contractor
license in Florida?
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. Licensing & Scope – Unlimited system size; includes design, installation, repair, and
maintenance of HVAC, refrigeration, heating, and ventilation systems; excludes potable
water/sewer lines and line-side electrical power wiring; ability to repair power wiring for
HVAC circuits expanded by pending legislation
2. Exam Logistics & Requirements – Administered by DBPR/CILB; 100-question trade exam;
3 hours 50 minutes time limit; 75% passing score required; open-book format with
approved references only; must obtain license within 4 years of passing exam
3. Business & Law (Separate Exam Required) – Chapter 489 (Contracting) and Chapter 455
(DBPR); Construction Lien Law (Chapter 713); workers’ compensation (Chapter 440);
business structures, insurance, bonds, contracts, and change orders
4. HVAC Design & Load Calculations – Manual J (residential) and Manual N (commercial)
load calculations; psychrometrics; sensible and latent heat; equipment sizing; ACCA
Manual D duct design principles
5. Refrigeration Cycle & Components – Vapor-compression cycle; compressors
(reciprocating, scroll, rotary), condensers, evaporators, metering devices (TXV vs. fixed
orifice); superheat, subcooling, and compression ratio; refrigerants and EPA Section 608
6. Air Distribution & Ventilation – Duct construction, sizing, insulation, and leakage testing;
SMACNA standards; fire/smoke dampers; supply/return grilles; ventilation (ASHRAE
62.1/62.2); exhaust and make-up air systems
7. Electrical Systems & Controls – Low-voltage (24V) and line-voltage wiring; motors (PSC,
ECM), contactors, relays, capacitors; control wiring and thermostat connections; NEC
requirements; variable speed drives
8. Codes & Approved References – Florida Building Code – Mechanical (2023), Energy
Conservation (2023), and Fuel Gas; NFPA 90A/90B/96; OSHA 29 CFR Part 1926; SMACNA
Duct Construction Standards; Trane Ductulator; Pipefitters Handbook
9. Service, Troubleshooting & Safety – Airflow measurement (anemometer), static
pressure testing, refrigerant charging methods (subcooling for TXV, superheat for fixed
orifice); EPA Section 608 compliance; OSHA safety and fall protection; PPE requirements
10. Energy Efficiency & System Performance – SEER (minimum 15 in FL), EER, HSPF, AFUE;
Florida Energy Code compliance; duct leakage testing; energy conservation and system
optimization
, Page 2 of 109
100 MCQ Questions with Rationales
1. What is the maximum cooling capacity limitation for a Florida Class A Air Conditioning
Contractor license?
A) 25 tons
B) 50 tons
C) 100 tons
D) Unlimited system size
Correct Answer: D
Rationale: A Class A Air Conditioning Contractor license is unlimited in scope, allowing work on
HVAC systems of any size or tonnage without capacity limitations. This is the primary distinction
from a Class B license, which is limited to 25 tons cooling and 500,000 BTU heating .
2. What is the passing score required for the Florida Class A trade examination?
A) 65%
B) 70%
C) 75%
D) 80%
Correct Answer: C
Rationale: Candidates must pass the trade examination with a score of 75% or higher. This
requirement applies to both the trade exam and the separate Business and Law examination .
, Page 3 of 109
3. A Florida Class A Air Conditioning Contractor may NOT perform which of the following?
A) Installation of ductwork
B) Repair of power wiring for HVAC circuits
C) Installation of potable water lines
D) Condensate drain installation
Correct Answer: C
Rationale: The Class A scope explicitly excludes potable water lines and sanitary sewer lines.
Pending legislation may clarify additional tasks, but potable water lines remain outside the
scope .
4. How long does a candidate have to obtain their license after passing the state certification
examination?
A) 1 year
B) 2 years
C) 4 years
D) 5 years
Correct Answer: C
Rationale: Board rules require candidates to obtain their license within 4 years of receiving their
exam score. Failure to do so may require retaking the examination .
5. Which application is used for an individual seeking a Certified Class A license after passing
the state exam?
, Page 4 of 109
A) CILB 5-G
B) CILB 5-E
C) DBPR 20
D) CILB 5-R
Correct Answer: A
Rationale: CILB 5-G is the application for a Certified Class A Air Conditioning Contractor as an
Individual. This application is submitted after passing the state certification examination .
6. According to the Florida Building Code – Energy Conservation, what is the minimum SEER
rating for new residential air conditioning systems in Florida?
A) 13 SEER
B) 14 SEER
C) 15 SEER
D) 18 SEER
Correct Answer: C
Rationale: The Florida Energy Code establishes minimum efficiency standards for HVAC
equipment, with residential systems generally required to meet at least 15 SEER. Higher
efficiency systems may be required depending on the specific installation .
7. What is the maximum cooling capacity limitation for a Class B Air Conditioning Contractor
license in Florida?
