FLORIDA HVAC JOURNEYMAN LICENSING
EXAMINATION COMPLETE PRACTICE EXAM |
COMPREHENSIVE STUDY GUIDE | ADVANCED
PRACTICE QUESTIONS & ANSWERS | UPDATED
2026/2027
Examiner/Administrator: Florida Department of Business and Professional
Regulation (DBPR)
<div align="center">
FLORIDA HVAC JOURNEYMAN LICENSING EXAMINATION
2026/2027 EDITION
COMPLETE PRACTICE EXAM
100 MULTIPLE-CHOICE PRACTICE QUESTIONS
PASSING SCORE: 70%
TESTING TIME: 120 MINUTES
TABLE OF CONTENTS
1. Safety Standards & OSHA Requirements
2. Florida Mechanical Code
3. Refrigeration Principles
4. Electrical Fundamentals
5. Motors, Controls & Components
6. Air Distribution & Duct Systems
7. Heat Pumps & Air Conditioning Systems
8. Troubleshooting & Diagnostics
,9. Installation Practices
10. Load Calculations & System Performance
FLORIDA DEPARTMENT OF BUSINESS AND PROFESSIONAL REGULATION (DBPR) ||
ALIGNED WITH CURRENT LICENSING BLUEPRINTS || HVAC CODES & SAFETY
STANDARDS || PROFESSIONAL STUDY GUIDE || ORIGINAL PRACTICE QUESTIONS
WITH DETAILED EXPLANATIONS || COMPREHENSIVE EXAM PREPARATION ||
PREPARED FOR LICENSING & CERTIFICATION EXAMINATION USE
</div>
Safety Standards, Regulations & Codes (Questions 1–8)
QUESTION 1
A technician arrives at a rooftop unit where electrical troubleshooting is required.
Before opening the disconnect enclosure, what is the MOST appropriate first action?
A. Remove the disconnect and immediately begin testing voltage
B. Verify lockout/tagout procedures and confirm the absence of voltage using an
appropriate meter
C. Wear insulated gloves and begin replacing the contactor
D. Shut off the thermostat only
Correct Answer: B. Verify lockout/tagout procedures and confirm the absence of
voltage using an appropriate meter.
Explanation: Proper lockout/tagout protects workers from unexpected energization.
After isolating power, voltage must always be verified before servicing equipment.
Simply switching off the thermostat or relying on protective gloves does not eliminate
electrical hazards.
,QUESTION 2
When recovering refrigerant from an air-conditioning system, the technician's
PRIMARY objective is to:
A. Increase compressor efficiency
B. Reduce compressor oil contamination
C. Prevent refrigerant from being released into the atmosphere
D. Improve airflow
Correct Answer: C. Prevent refrigerant from being released into the atmosphere.
Explanation: Refrigerant recovery protects the environment and complies with federal
environmental regulations. The other options are secondary concerns and are not the
primary purpose of recovery equipment.
QUESTION 3
A confined mechanical room has poor ventilation. Before brazing refrigerant piping,
what should be done FIRST?
A. Increase nitrogen pressure
B. Provide adequate ventilation and verify the work area is safe
C. Install the liquid-line filter drier
D. Energize the condenser fan
Correct Answer: B. Provide adequate ventilation and verify the work area is safe.
Explanation: Brazing produces heat and fumes. Adequate ventilation and safe work
conditions reduce fire and health hazards. Nitrogen is important during brazing but
does not replace proper ventilation.
, QUESTION 4
Which fire extinguisher classification is generally appropriate for energized electrical
equipment?
A. Class A
B. Class B
C. Class C
D. Class K
Correct Answer: C. Class C.
Explanation: Class C extinguishers are intended for energized electrical fires. Class A is
for ordinary combustibles, Class B for flammable liquids, and Class K for cooking oils.
QUESTION 5
Why should nitrogen be flowed through copper tubing during brazing?
A. To increase refrigerant pressure
B. To prevent oxidation inside the tubing
C. To improve compressor lubrication
D. To reduce suction pressure
Correct Answer: B. To prevent oxidation inside the tubing.
Explanation: Nitrogen minimizes oxidation scale that can damage expansion devices
and compressors. It does not affect operating pressures or lubrication during
installation.
QUESTION 6
Personal protective equipment should be selected primarily based on:
EXAMINATION COMPLETE PRACTICE EXAM |
COMPREHENSIVE STUDY GUIDE | ADVANCED
PRACTICE QUESTIONS & ANSWERS | UPDATED
2026/2027
Examiner/Administrator: Florida Department of Business and Professional
Regulation (DBPR)
<div align="center">
FLORIDA HVAC JOURNEYMAN LICENSING EXAMINATION
2026/2027 EDITION
COMPLETE PRACTICE EXAM
100 MULTIPLE-CHOICE PRACTICE QUESTIONS
PASSING SCORE: 70%
TESTING TIME: 120 MINUTES
TABLE OF CONTENTS
1. Safety Standards & OSHA Requirements
2. Florida Mechanical Code
3. Refrigeration Principles
4. Electrical Fundamentals
5. Motors, Controls & Components
6. Air Distribution & Duct Systems
7. Heat Pumps & Air Conditioning Systems
8. Troubleshooting & Diagnostics
,9. Installation Practices
10. Load Calculations & System Performance
FLORIDA DEPARTMENT OF BUSINESS AND PROFESSIONAL REGULATION (DBPR) ||
ALIGNED WITH CURRENT LICENSING BLUEPRINTS || HVAC CODES & SAFETY
STANDARDS || PROFESSIONAL STUDY GUIDE || ORIGINAL PRACTICE QUESTIONS
WITH DETAILED EXPLANATIONS || COMPREHENSIVE EXAM PREPARATION ||
PREPARED FOR LICENSING & CERTIFICATION EXAMINATION USE
</div>
Safety Standards, Regulations & Codes (Questions 1–8)
QUESTION 1
A technician arrives at a rooftop unit where electrical troubleshooting is required.
Before opening the disconnect enclosure, what is the MOST appropriate first action?
A. Remove the disconnect and immediately begin testing voltage
B. Verify lockout/tagout procedures and confirm the absence of voltage using an
appropriate meter
C. Wear insulated gloves and begin replacing the contactor
D. Shut off the thermostat only
Correct Answer: B. Verify lockout/tagout procedures and confirm the absence of
voltage using an appropriate meter.
Explanation: Proper lockout/tagout protects workers from unexpected energization.
After isolating power, voltage must always be verified before servicing equipment.
Simply switching off the thermostat or relying on protective gloves does not eliminate
electrical hazards.
,QUESTION 2
When recovering refrigerant from an air-conditioning system, the technician's
PRIMARY objective is to:
A. Increase compressor efficiency
B. Reduce compressor oil contamination
C. Prevent refrigerant from being released into the atmosphere
D. Improve airflow
Correct Answer: C. Prevent refrigerant from being released into the atmosphere.
Explanation: Refrigerant recovery protects the environment and complies with federal
environmental regulations. The other options are secondary concerns and are not the
primary purpose of recovery equipment.
QUESTION 3
A confined mechanical room has poor ventilation. Before brazing refrigerant piping,
what should be done FIRST?
A. Increase nitrogen pressure
B. Provide adequate ventilation and verify the work area is safe
C. Install the liquid-line filter drier
D. Energize the condenser fan
Correct Answer: B. Provide adequate ventilation and verify the work area is safe.
Explanation: Brazing produces heat and fumes. Adequate ventilation and safe work
conditions reduce fire and health hazards. Nitrogen is important during brazing but
does not replace proper ventilation.
, QUESTION 4
Which fire extinguisher classification is generally appropriate for energized electrical
equipment?
A. Class A
B. Class B
C. Class C
D. Class K
Correct Answer: C. Class C.
Explanation: Class C extinguishers are intended for energized electrical fires. Class A is
for ordinary combustibles, Class B for flammable liquids, and Class K for cooking oils.
QUESTION 5
Why should nitrogen be flowed through copper tubing during brazing?
A. To increase refrigerant pressure
B. To prevent oxidation inside the tubing
C. To improve compressor lubrication
D. To reduce suction pressure
Correct Answer: B. To prevent oxidation inside the tubing.
Explanation: Nitrogen minimizes oxidation scale that can damage expansion devices
and compressors. It does not affect operating pressures or lubrication during
installation.
QUESTION 6
Personal protective equipment should be selected primarily based on:
