FLORIDA AIR CONDITIONING CLASS B
CONTRACTOR EXAMINATION COMPLETE
QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR JUST
RELEASED
The Florida Air Conditioning Class B Contractor
Examination is a professional licensing exam designed for
contractors who install, maintain, repair, alter, extend, or
design air-conditioning systems up to specified limits
under Florida regulations. The examination evaluates
competency in HVAC theory, load calculations,
refrigeration, electrical systems, codes, safety, business
practices, permitting, energy efficiency, system design,
troubleshooting, and Florida-specific contracting
requirements.
Exam Coverage
HVAC fundamentals and thermodynamics
Refrigeration cycle operation and components
Heat transfer principles and psychrometrics
, Load calculations and equipment sizing
Duct design and airflow management
Electrical theory, motors, and controls
HVAC installation standards
Refrigerant handling and environmental compliance
Fuel gas systems and combustion safety
Ventilation and indoor air quality
Energy conservation requirements
HVAC troubleshooting and diagnostics
Construction safety and OSHA principles
Florida contracting laws and regulations
Permitting, inspections, and documentation
Business management and project administration
Estimating, bidding, and cost control
Equipment maintenance procedures
Code compliance and contractor responsibilities
Customer relations and professional ethics
Questions 1–50
1.
,A contractor discovers an air-conditioning system
consistently short cycles during peak afternoon
temperatures despite proper thermostat placement. Which
condition is the most likely cause?
A. Oversized condenser and evaporator combination
B. Dirty return-air grille only
C. Low outdoor humidity conditions
D. Excessive insulation values
Answer: A
Rationale: Oversized systems satisfy thermostat demand
rapidly, causing short cycling, reduced efficiency, and
inadequate humidity removal.
2.
When calculating cooling loads for a commercial office
renovation, which factor typically contributes most
significantly to internal sensible heat gain?
A. Occupants and office equipment
B. Roof color exclusively
C. Groundwater temperature
D. Condensate drain size
Answer: A
, Rationale: Occupants, lighting, and equipment frequently
represent substantial internal heat gains requiring
inclusion in load calculations.
3.
An HVAC technician measures high condenser pressure
and elevated compressor amperage on a hot day. Which
condition should be investigated first?
A. Restricted condenser airflow
B. Oversized return ductwork
C. Low indoor humidity
D. Oversized thermostat wire
Answer: A
Rationale: Reduced condenser airflow increases condensing
temperature and pressure, causing higher compressor
workload.
4.
What primary purpose does superheat measurement serve
when evaluating a fixed-orifice refrigeration system?
A. Determining evaporator refrigerant utilization
B. Measuring duct leakage directly
CONTRACTOR EXAMINATION COMPLETE
QUESTIONS AND DETAILED SOLUTIONS
LATEST UPDATE THIS YEAR JUST
RELEASED
The Florida Air Conditioning Class B Contractor
Examination is a professional licensing exam designed for
contractors who install, maintain, repair, alter, extend, or
design air-conditioning systems up to specified limits
under Florida regulations. The examination evaluates
competency in HVAC theory, load calculations,
refrigeration, electrical systems, codes, safety, business
practices, permitting, energy efficiency, system design,
troubleshooting, and Florida-specific contracting
requirements.
Exam Coverage
HVAC fundamentals and thermodynamics
Refrigeration cycle operation and components
Heat transfer principles and psychrometrics
, Load calculations and equipment sizing
Duct design and airflow management
Electrical theory, motors, and controls
HVAC installation standards
Refrigerant handling and environmental compliance
Fuel gas systems and combustion safety
Ventilation and indoor air quality
Energy conservation requirements
HVAC troubleshooting and diagnostics
Construction safety and OSHA principles
Florida contracting laws and regulations
Permitting, inspections, and documentation
Business management and project administration
Estimating, bidding, and cost control
Equipment maintenance procedures
Code compliance and contractor responsibilities
Customer relations and professional ethics
Questions 1–50
1.
,A contractor discovers an air-conditioning system
consistently short cycles during peak afternoon
temperatures despite proper thermostat placement. Which
condition is the most likely cause?
A. Oversized condenser and evaporator combination
B. Dirty return-air grille only
C. Low outdoor humidity conditions
D. Excessive insulation values
Answer: A
Rationale: Oversized systems satisfy thermostat demand
rapidly, causing short cycling, reduced efficiency, and
inadequate humidity removal.
2.
When calculating cooling loads for a commercial office
renovation, which factor typically contributes most
significantly to internal sensible heat gain?
A. Occupants and office equipment
B. Roof color exclusively
C. Groundwater temperature
D. Condensate drain size
Answer: A
, Rationale: Occupants, lighting, and equipment frequently
represent substantial internal heat gains requiring
inclusion in load calculations.
3.
An HVAC technician measures high condenser pressure
and elevated compressor amperage on a hot day. Which
condition should be investigated first?
A. Restricted condenser airflow
B. Oversized return ductwork
C. Low indoor humidity
D. Oversized thermostat wire
Answer: A
Rationale: Reduced condenser airflow increases condensing
temperature and pressure, causing higher compressor
workload.
4.
What primary purpose does superheat measurement serve
when evaluating a fixed-orifice refrigeration system?
A. Determining evaporator refrigerant utilization
B. Measuring duct leakage directly
