FLORIDA HVAC CONTRACTOR EXAM – QUESTIONS AND ANSWERS | VERIFIED AND
WELL DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM
UPDATE
*Core Domains*
*Business and Project Management*
*Florida Building Code - Mechanical*
*Florida Building Code - Energy Conservation*
*OSHA Safety Standards and Regulations*
*Load Calculations and Psychrometrics*
*Refrigeration Theory and Systems*
*Duct Design and Air Distribution*
*Controls and Low Voltage Wiring*
*Maintenance and Troubleshooting*
*Introduction*
*This comprehensive assessment is designed to evaluate the competency and
professional readiness of candidates for the Florida HVAC Contractor
license. The exam rigorously assesses foundational knowledge, regulatory
compliance, and technical proficiency across residential and commercial
applications. Through a combination of multiple-choice and complex
scenario-based questions, candidates are tested on their ability to
apply the Florida Building Code, execute precise load calculations, and
, ensure adherence to federal safety and environmental standards. This
exam emphasizes real-world decision-making, requiring practitioners to
demonstrate mastery in system design, installation, and ethical business
practices essential for the safety and comfort of the public.*
Section One: Questions 1–100
1. According to the Florida Building Code - Mechanical, what is the minimum
unobstructed headroom clearance for mechanical equipment located in an attic?
A. 24 inches
B. 30 inches
C. 36 inches
D. 48 inches
🟢 B. 30 inches
🔴 Explanation: The Florida Building Code requires a minimum of 30 inches of
unobstructed headroom clearance along the entire access path and at the front of the
equipment service side.
2. A technician is measuring the superheat on a system with a fixed orifice expansion
device. If the indoor heat load increases, what will typically happen to the superheat?
,A. It will decrease
B. It will increase
C. It will remain constant
D. It will fluctuate based on outdoor humidity
🟢 B. It will increase
🔴 Explanation: With a fixed orifice, an increased heat load in the evaporator causes the
refrigerant to boil off faster, resulting in higher temperatures at the suction line exit and
increased superheat.
3. Which document defines the specific safety requirements for trenching and
excavation to prevent cave-ins during the installation of underground HVAC lines?
A. SMACNA Duct Standards
B. OSHA 29 CFR 1926 Subpart P
C. Florida Mechanical Code Chapter 5
D. ACCA Manual D
🟢 B. OSHA 29 CFR 1926 Subpart P
🔴 Explanation: OSHA Subpart P specifically addresses the safety standards for
excavations and trenching, which are critical for any HVAC contractor performing
underground piping or ductwork.
, 4. When calculating the sensible heat gain for a building using ACCA Manual J, which
factor has the greatest impact on the solar heat gain coefficient (SHGC)?
A. Wall insulation R-value
B. The orientation and glazing of windows
C. The color of the roof shingles
D. The CFM of the blower motor
🟢 B. The orientation and glazing of windows
🔴 Explanation: Solar Heat Gain Coefficient (SHGC) refers specifically to the fraction of
solar radiation admitted through a window; therefore, window properties and orientation
are the primary influencers.
5. A commercial HVAC system uses a three-phase power supply. If one of the three
phases is lost while the motor is running, this condition is known as:
A. Phase reversal
B. Ground fault
C. Single-phasing
D. Voltage surge
🟢 C. Single-phasing
WELL DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM
UPDATE
*Core Domains*
*Business and Project Management*
*Florida Building Code - Mechanical*
*Florida Building Code - Energy Conservation*
*OSHA Safety Standards and Regulations*
*Load Calculations and Psychrometrics*
*Refrigeration Theory and Systems*
*Duct Design and Air Distribution*
*Controls and Low Voltage Wiring*
*Maintenance and Troubleshooting*
*Introduction*
*This comprehensive assessment is designed to evaluate the competency and
professional readiness of candidates for the Florida HVAC Contractor
license. The exam rigorously assesses foundational knowledge, regulatory
compliance, and technical proficiency across residential and commercial
applications. Through a combination of multiple-choice and complex
scenario-based questions, candidates are tested on their ability to
apply the Florida Building Code, execute precise load calculations, and
, ensure adherence to federal safety and environmental standards. This
exam emphasizes real-world decision-making, requiring practitioners to
demonstrate mastery in system design, installation, and ethical business
practices essential for the safety and comfort of the public.*
Section One: Questions 1–100
1. According to the Florida Building Code - Mechanical, what is the minimum
unobstructed headroom clearance for mechanical equipment located in an attic?
A. 24 inches
B. 30 inches
C. 36 inches
D. 48 inches
🟢 B. 30 inches
🔴 Explanation: The Florida Building Code requires a minimum of 30 inches of
unobstructed headroom clearance along the entire access path and at the front of the
equipment service side.
2. A technician is measuring the superheat on a system with a fixed orifice expansion
device. If the indoor heat load increases, what will typically happen to the superheat?
,A. It will decrease
B. It will increase
C. It will remain constant
D. It will fluctuate based on outdoor humidity
🟢 B. It will increase
🔴 Explanation: With a fixed orifice, an increased heat load in the evaporator causes the
refrigerant to boil off faster, resulting in higher temperatures at the suction line exit and
increased superheat.
3. Which document defines the specific safety requirements for trenching and
excavation to prevent cave-ins during the installation of underground HVAC lines?
A. SMACNA Duct Standards
B. OSHA 29 CFR 1926 Subpart P
C. Florida Mechanical Code Chapter 5
D. ACCA Manual D
🟢 B. OSHA 29 CFR 1926 Subpart P
🔴 Explanation: OSHA Subpart P specifically addresses the safety standards for
excavations and trenching, which are critical for any HVAC contractor performing
underground piping or ductwork.
, 4. When calculating the sensible heat gain for a building using ACCA Manual J, which
factor has the greatest impact on the solar heat gain coefficient (SHGC)?
A. Wall insulation R-value
B. The orientation and glazing of windows
C. The color of the roof shingles
D. The CFM of the blower motor
🟢 B. The orientation and glazing of windows
🔴 Explanation: Solar Heat Gain Coefficient (SHGC) refers specifically to the fraction of
solar radiation admitted through a window; therefore, window properties and orientation
are the primary influencers.
5. A commercial HVAC system uses a three-phase power supply. If one of the three
phases is lost while the motor is running, this condition is known as:
A. Phase reversal
B. Ground fault
C. Single-phasing
D. Voltage surge
🟢 C. Single-phasing
