LOUISIANA CLASS D
"CHAUFFEUR'S"
LICENSE TEST PRACTICE
EXAMINATION 2026 QUESTIONS
WITH ANSWERS GRADED A+
◍ What are A2L refrigerants known for?.
Answer: Low flammability and low toxicity.
◍ What is Global Warming Potential (GWP) measured in relation to?.
Answer: A similar mass of Carbon Dioxide
◍ What is the primary function of refrigerants?.
Answer: To transfer heat from an area where it is not wanted to a place
where it can be disposed of easily.
◍ What is a potential health consequence of inhaling hydrogen fluoride
combustion by-products from A2L refrigerants?.
Answer: Pulmonary Edema
◍ What is the refrigeration cycle?.
Answer: A process where refrigerants absorb heat from a low-temperature
environment and expel it into a higher temperature area.
◍ When did the phase-down of R-410A begin?.
Answer: 2022
◍ When will the EPA prohibit the production of new equipment using
R-410A?.
Answer: 2025
,◍ What does the classification 'A2L' stand for?.
Answer: Non-toxic, Flammable, Low Burning Velocity
◍ What thermodynamic property allows refrigerants to function effectively?.
Answer: The ability to transition between liquid and vapor states at
relatively low temperatures.
◍ Which item is NOT required on the UL-mandated label for flammable
refrigerant systems?.
Answer: Name of the manufacturer
◍ What is the significance of the AIM Act?.
Answer: It authorizes the EPA to phase down the production and
consumption of HFCs and promote the transition to A2L refrigerants.
◍ What information must be included on the UL-mandated label for
flammable refrigerant systems?.
Answer: Evacuation level achieved, pressure used for leak testing, and the
date the test and evacuation were completed
◍ List two examples of A2L refrigerants..
Answer: R 454A and R 32.
◍ What is the role of preventative maintenance in handling A2L refrigerants?.
Answer: To stop issues before they arise and promote a safe work
environment.
◍ Why should standard recovery machines for HFC/CFC refrigerants not be
used with HC refrigerants?.
Answer: They contain ignition sources like on-off switches, relays, and
pressure switches
◍ What is a required safety feature for indoor A2L refrigerant systems?.
Answer: A leak detection system
◍ Which agency regulates the use of refrigerants specifically in New York
City?.
Answer: FDNY
, ◍ What is the primary hazard associated with A2L refrigerants?.
Answer: Flammability
◍ Which of the following is an example of an A2L refrigerant?.
Answer: R-1234yf
◍ What is the classification of R-22?.
Answer: Not A2L (it is an HCFC)
◍ What is the classification of R-410A?.
Answer: Not A2L (it is an HFC)
◍ What is the classification of R-134a?.
Answer: Not A2L (it is an HFC)
◍ What type of ink must be used on the UL-required system label?.
Answer: Permanent ink
◍ What are the key safety practices for handling A2L refrigerants?.
Answer: Proper transportation, storage, and adherence to emergency
procedures.
◍ What does the International Fire Code (IFC) stipulate for machinery rooms
using A2L refrigerants?.
Answer: They must adhere to Class, Division 2 hazardous location
requirements.
◍ What ventilation requirements are specified by the IFC for machinery rooms
with A2L refrigerants?.
Answer: Adequate ventilation levels must comply with ASHRAE 15.
◍ What should be avoided in machinery rooms according to the IFC?.
Answer: Permanently installed devices producing open flames or surfaces
exceeding 1,290 degrees Fahrenheit.
◍ Can A2L refrigerants be discharged into the atmosphere because of their
low GWP?.
Answer: No, they must be recovered
"CHAUFFEUR'S"
LICENSE TEST PRACTICE
EXAMINATION 2026 QUESTIONS
WITH ANSWERS GRADED A+
◍ What are A2L refrigerants known for?.
Answer: Low flammability and low toxicity.
◍ What is Global Warming Potential (GWP) measured in relation to?.
Answer: A similar mass of Carbon Dioxide
◍ What is the primary function of refrigerants?.
Answer: To transfer heat from an area where it is not wanted to a place
where it can be disposed of easily.
◍ What is a potential health consequence of inhaling hydrogen fluoride
combustion by-products from A2L refrigerants?.
Answer: Pulmonary Edema
◍ What is the refrigeration cycle?.
Answer: A process where refrigerants absorb heat from a low-temperature
environment and expel it into a higher temperature area.
◍ When did the phase-down of R-410A begin?.
Answer: 2022
◍ When will the EPA prohibit the production of new equipment using
R-410A?.
Answer: 2025
,◍ What does the classification 'A2L' stand for?.
Answer: Non-toxic, Flammable, Low Burning Velocity
◍ What thermodynamic property allows refrigerants to function effectively?.
Answer: The ability to transition between liquid and vapor states at
relatively low temperatures.
◍ Which item is NOT required on the UL-mandated label for flammable
refrigerant systems?.
Answer: Name of the manufacturer
◍ What is the significance of the AIM Act?.
Answer: It authorizes the EPA to phase down the production and
consumption of HFCs and promote the transition to A2L refrigerants.
◍ What information must be included on the UL-mandated label for
flammable refrigerant systems?.
Answer: Evacuation level achieved, pressure used for leak testing, and the
date the test and evacuation were completed
◍ List two examples of A2L refrigerants..
Answer: R 454A and R 32.
◍ What is the role of preventative maintenance in handling A2L refrigerants?.
Answer: To stop issues before they arise and promote a safe work
environment.
◍ Why should standard recovery machines for HFC/CFC refrigerants not be
used with HC refrigerants?.
Answer: They contain ignition sources like on-off switches, relays, and
pressure switches
◍ What is a required safety feature for indoor A2L refrigerant systems?.
Answer: A leak detection system
◍ Which agency regulates the use of refrigerants specifically in New York
City?.
Answer: FDNY
, ◍ What is the primary hazard associated with A2L refrigerants?.
Answer: Flammability
◍ Which of the following is an example of an A2L refrigerant?.
Answer: R-1234yf
◍ What is the classification of R-22?.
Answer: Not A2L (it is an HCFC)
◍ What is the classification of R-410A?.
Answer: Not A2L (it is an HFC)
◍ What is the classification of R-134a?.
Answer: Not A2L (it is an HFC)
◍ What type of ink must be used on the UL-required system label?.
Answer: Permanent ink
◍ What are the key safety practices for handling A2L refrigerants?.
Answer: Proper transportation, storage, and adherence to emergency
procedures.
◍ What does the International Fire Code (IFC) stipulate for machinery rooms
using A2L refrigerants?.
Answer: They must adhere to Class, Division 2 hazardous location
requirements.
◍ What ventilation requirements are specified by the IFC for machinery rooms
with A2L refrigerants?.
Answer: Adequate ventilation levels must comply with ASHRAE 15.
◍ What should be avoided in machinery rooms according to the IFC?.
Answer: Permanently installed devices producing open flames or surfaces
exceeding 1,290 degrees Fahrenheit.
◍ Can A2L refrigerants be discharged into the atmosphere because of their
low GWP?.
Answer: No, they must be recovered
