Exam Questions And Correct Answers

Florida Air Conditioning Contractor Exam Questions And Correct Answers (Verified Answers) Plus Rationale2026 Q&A| Instant Download Pdf

• Which refrigerant has been phased out due to ozone depletion

potential?

A. R-410A

B. R-22

• R-134a

D. R-32

R-22 has a high ozone depletion potential and is being phased out under the Montreal Protocol.

• The minimum efficiency rating for new central air conditioners in

Florida is measured in:

A. EER

B. SEER

C. COP

D. SEER

SEER (Seasonal Energy Efficiency Ratio) measures cooling efficiency over a typical season.

• Which type of system uses water as the primary heat transfer medium?
• Packaged unit
• Chilled water system
• Heat pump
• Split system

Chilled water systems circulate water to transfer heat in large commercial HVAC installations. 1 / 3

4. The primary purpose of a TXV (Thermostatic Expansion Valve) is to:

• Compress refrigerant
• Regulate refrigerant flow into the evaporator
• Filter impurities
• Condense refrigerant

TXVs control the flow of refrigerant based on superheat to optimize evaporator performance.

• Which of the following is considered a high-efficiency air conditioner?

A. 10 SEER

B. 12 SEER

C. 15 SEER

D. 13 SEER

Units with SEER ratings of 14–16 or higher are generally considered high-efficiency for residential use.

6. In Florida, contractors must be licensed by:

A. OSHA

B. EPA

• Florida Department of Business and Professional Regulation

(DBPR)

D. AHRI

The DBPR regulates licensing for air conditioning contractors in Florida.

• What is the main cause of low refrigerant pressure in a system?
• Dirty filter
• Oversized unit
• Leak in the system
• Excessive insulation

Low pressure often indicates a refrigerant leak, which must be located and repaired.

8. The term "superheat" refers to:

• Temperature below evaporator saturation
• Pressure above condenser saturation
• Temperature above the boiling point of refrigerant at a given

pressure

• The same as subcooling

Superheat measures how much the refrigerant vapor has been heated beyond its saturation temperature. 2 / 3

9. A split system air conditioner separates:

• Compressor and thermostat
• Evaporator coil and condenser unit
• Ductwork and filter
• Furnace and humidifier

Split systems have the condenser outdoors and the evaporator coil indoors.

• Which refrigerant is considered environmentally friendly with

zero ozone depletion?

A. R-22

B. R-410A

C. R-12

D. R-502

R-410A does not deplete the ozone layer and is widely used in new systems.

• What is the function of the condenser coil?
• Absorb heat from indoor air
• Release heat to the outdoor environment
• Pump refrigerant
• Remove moisture from air

The condenser coil transfers heat from the refrigerant to the outside air.

12. If a system is short-cycling, this indicates:

• Proper operation
• Oversized equipment or refrigerant issues
• Correct thermostat calibration
• Low humidity

Short cycling often results from oversized units, low refrigerant, or control issues.

• What is the primary safety device to prevent compressor damage

from high pressure?

A. TXV

• Thermostat
• High-pressure switch
• Expansion valve

High-pressure switches shut down the compressor if pressures exceed safe limits.

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