EPA 608 CERTIFICATION EXAM 2025 | ALL INCLUSIVE
WITH CORE AND TYPE 1 II AND II ALL INCLUDED WITH A
STUDY GUIDE AND KNOWLEDGE CHECK FLASHCARDS|
ACCURATE AND VERIFIED FOR GUARANTEED PASS |
LATEST UPDATE.
The compressor .
- CORRECT ->>Changes a low-pressure vapor to a high-pressure vapor.
The chlorine in CFCs and HCFCs;
- CORRECT ->>Will not dissolve in water.
A single chlorine atom can destroy how many O-Zone molecules?
- CORRECT ->>100,000
A refrigerant cylinder designed to hold recovered refrigerant has a:
- CORRECT ->>Grey body and yellow top.
Which of the following has the highest O-Zone depletion potential?
- CORRECT ->>CFCs
Before shipping any used refrigerant cylinders, check that the cylinder meets what standards:
- CORRECT ->>Department of transportation
What is the significant new alternative policy (SNAP) program?
- CORRECT ->>EPA's program that identifies refrigerants with lower overall risks to humans’ health and
the environment.
Clean refrigerant for reuse by separating the oil from the refrigerant and removing moisture from the
refrigerant by passing it through one or more filter driers, is the definition of;
- CORRECT ->>Recycle
To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical
analysis defines;
- CORRECT ->>Reclaiming
Which of the following refrigerant has a GWP of "1"?
- CORRECT ->> R-1233zd
The molecule found in CFCs and HCFCs that depletes O-Zone is:
- CORRECT ->> Chlorine
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the
proper disposal method for;
- CORRECT ->>Disposable cylinders
The condenser .
- CORRECT ->>Changes a high-pressure vapor to a high-pressure liquid.
An ozone molecule contains;
- CORRECT ->>Three oxygen atoms.
The low-side test-pressure data-plate valve should be used by a technician to determine a safe pressure
for:
,- CORRECT ->>leak testing.
HCFCs contain;
- CORRECT ->>Hydrogen, chlorine, fluorine, and carbon.
Reusable refrigerant containers under high-pressure must be hydrostatically tested how often?
- CORRECT ->>5 years
Which type of refrigerant contains no chlorine?
- CORRECT ->> HFCs
Crop loss, Eye disease, and skin cancer have been attributed to;
- CORRECT ->>Depletion of stratospheric ozone
Which ASHRAE classification mean slightly flammable?
- CORRECT ->>A2L
How much can a person be fined per day per violation for knowingly releasing a regulated substance that
violates the clean air act?
- CORRECT ->>$44,539
HFCs ;
- CORRECT ->>Will not damage stratospheric O-Zone, but have a high GWP.
Silicone elastomers, for use in seals and gaskets, are not compatible with which refrigerants?
- CORRECT ->>HFOs
Which of the following refrigerant is an HFO?
- CORRECT ->>R-1234ze
Which international agreement (Treaty) regulated the production and use of CFCs, HCFCs, Halons,
methyl chloroform and carbon tetrachloride?
- CORRECT ->>Montreal Protocol
Which of the following refrigerants has the lowest global warming potential?
- CORRECT ->>R-600a
Which of the following gases is used as a baseline measurement for global warming potential?
- CORRECT ->>Carbon dioxide
Which type of refrigerant typically has the lowest global warming potential?
- CORRECT ->>HFOs
What is the state of refrigerant entering the compressor of a refrigeration system?
- CORRECT ->>Low pressure superheated vapor
How does the global warming potential of R-410A compare to that of carbon dioxide?
- CORRECT ->>It is thousands of times greater
How did the global warming potentials of isobutane (R-600a), propane (R-290), and R-441A compare to
the GWPs of HFC-134a, R404A, and R-410A?
- CORRECT ->>They are significantly lower R-600a
Isobutane R-290
Propane
,What are the characteristics of hydrofluoroolefins (HFOs)?
- CORRECT ->>Non-O-Zone depleting and have low global warming potentials
Why are HFO refrigerants less flammable than hydrocarbon refrigerants?
- CORRECT ->>They contain fluorine.
Which of the following refrigerants is an HFO?
- CORRECT ->>R-1234yf
What characteristics of HFC refrigerants make them damaging to the environment?
- CORRECT ->>They can have very high global warming potentials
An example of a CFC refrigerant is:
- CORRECT ->> R-12
Which of the following is an HFC refrigerant?
- CORRECT ->>R-134a
Which of the following is a high-pressure refrigerant?
- CORRECT ->>R-410A
Which of the following refrigerants damages stratospheric ozone?
- CORRECT ->>HCFCs
What is the strongest evidence that HCFCs are in the stratosphere?
- CORRECT ->> Measurement of HCFCs and air samples from the stratosphere
Which type of refrigerant is the most harmful to stratospheric ozone?
- CORRECT ->>CFCs
Which refrigerant does not contain chlorine?
- CORRECT ->>R-134a
From which of the following does the ozone layer protect the earth?
- CORRECT ->>Ultraviolet radiation from the sun
Which of the following refrigerants have an ozone depletion potential of more than zero?
- CORRECT ->> R-123 and r-22
After the phase out of a refrigerant, where Will supplies of that refrigerant for equipment servicing come
from?
, - CORRECT ->>Recovery and reclaimed gas
Which of the following is a lawful use of HCFC-22?
- CORRECT ->>Servicing existing R-22 systems
Which of the following refrigerants contain chlorine?
- CORRECT ->>R-22
A refillable cylinder must not be filled above what percent of its capacity by weight?
- CORRECT ->>80%
Under what conditions may you use a disposable cylinder to recover refrigerant?
- CORRECT ->>Never
Where is the stratosphere located? - CORRECT ->>Between 7 and 30 miles above sea level.
What does an ozone molecule protect us from? - CORRECT ->>Harmful ultraviolet radiation from the
sun
What does an ozone molecule help maintain? - CORRECT ->>Stable earth temperatures
R-744
- CORRECT ->>Carbon dioxide
R-290
- CORRECT ->>Propane
What does ozone in the stratosphere above the earth consist of?
- CORRECT ->>Molecules containing 3 oxygen atoms
Which of the following refrigerants has the lowest global warming potential?
- CORRECT ->> R-600a
Which of the following gases is used as the baseline measurement for global warming potential?
- CORRECT ->> Carbon Dioxide
Which type of refrigerant typically has the lowest global warming potential?
- CORRECT ->> HFOs
What is the state of refrigerant entering the compressor of a refrigeration system?
- CORRECT ->> Low pressure superheated vapor
How does the global warming potential of R-410A compare to that of carbon dioxide?
- CORRECT ->>It is thousands of times greater.
How do the global warming potentials of isobutane (R-600a), propane (R-290), and R-441A compare to
the GWPs of HFC-134a, R404A, and R-410A?
- CORRECT ->> They are significantly lower.
What are the characteristics of hydrofluoroolefins (HFOs)?
- CORRECT ->> Non-ozone depleting and have low global warming potentials.
Why are HFO refrigerants less flammable than hydrocarbon refrigerants?
- CORRECT ->> They contain fluorine.
Which of the following refrigerants is an HFO?
- CORRECT ->>R-1234yf
WITH CORE AND TYPE 1 II AND II ALL INCLUDED WITH A
STUDY GUIDE AND KNOWLEDGE CHECK FLASHCARDS|
ACCURATE AND VERIFIED FOR GUARANTEED PASS |
LATEST UPDATE.
The compressor .
- CORRECT ->>Changes a low-pressure vapor to a high-pressure vapor.
The chlorine in CFCs and HCFCs;
- CORRECT ->>Will not dissolve in water.
A single chlorine atom can destroy how many O-Zone molecules?
- CORRECT ->>100,000
A refrigerant cylinder designed to hold recovered refrigerant has a:
- CORRECT ->>Grey body and yellow top.
Which of the following has the highest O-Zone depletion potential?
- CORRECT ->>CFCs
Before shipping any used refrigerant cylinders, check that the cylinder meets what standards:
- CORRECT ->>Department of transportation
What is the significant new alternative policy (SNAP) program?
- CORRECT ->>EPA's program that identifies refrigerants with lower overall risks to humans’ health and
the environment.
Clean refrigerant for reuse by separating the oil from the refrigerant and removing moisture from the
refrigerant by passing it through one or more filter driers, is the definition of;
- CORRECT ->>Recycle
To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical
analysis defines;
- CORRECT ->>Reclaiming
Which of the following refrigerant has a GWP of "1"?
- CORRECT ->> R-1233zd
The molecule found in CFCs and HCFCs that depletes O-Zone is:
- CORRECT ->> Chlorine
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the
proper disposal method for;
- CORRECT ->>Disposable cylinders
The condenser .
- CORRECT ->>Changes a high-pressure vapor to a high-pressure liquid.
An ozone molecule contains;
- CORRECT ->>Three oxygen atoms.
The low-side test-pressure data-plate valve should be used by a technician to determine a safe pressure
for:
,- CORRECT ->>leak testing.
HCFCs contain;
- CORRECT ->>Hydrogen, chlorine, fluorine, and carbon.
Reusable refrigerant containers under high-pressure must be hydrostatically tested how often?
- CORRECT ->>5 years
Which type of refrigerant contains no chlorine?
- CORRECT ->> HFCs
Crop loss, Eye disease, and skin cancer have been attributed to;
- CORRECT ->>Depletion of stratospheric ozone
Which ASHRAE classification mean slightly flammable?
- CORRECT ->>A2L
How much can a person be fined per day per violation for knowingly releasing a regulated substance that
violates the clean air act?
- CORRECT ->>$44,539
HFCs ;
- CORRECT ->>Will not damage stratospheric O-Zone, but have a high GWP.
Silicone elastomers, for use in seals and gaskets, are not compatible with which refrigerants?
- CORRECT ->>HFOs
Which of the following refrigerant is an HFO?
- CORRECT ->>R-1234ze
Which international agreement (Treaty) regulated the production and use of CFCs, HCFCs, Halons,
methyl chloroform and carbon tetrachloride?
- CORRECT ->>Montreal Protocol
Which of the following refrigerants has the lowest global warming potential?
- CORRECT ->>R-600a
Which of the following gases is used as a baseline measurement for global warming potential?
- CORRECT ->>Carbon dioxide
Which type of refrigerant typically has the lowest global warming potential?
- CORRECT ->>HFOs
What is the state of refrigerant entering the compressor of a refrigeration system?
- CORRECT ->>Low pressure superheated vapor
How does the global warming potential of R-410A compare to that of carbon dioxide?
- CORRECT ->>It is thousands of times greater
How did the global warming potentials of isobutane (R-600a), propane (R-290), and R-441A compare to
the GWPs of HFC-134a, R404A, and R-410A?
- CORRECT ->>They are significantly lower R-600a
Isobutane R-290
Propane
,What are the characteristics of hydrofluoroolefins (HFOs)?
- CORRECT ->>Non-O-Zone depleting and have low global warming potentials
Why are HFO refrigerants less flammable than hydrocarbon refrigerants?
- CORRECT ->>They contain fluorine.
Which of the following refrigerants is an HFO?
- CORRECT ->>R-1234yf
What characteristics of HFC refrigerants make them damaging to the environment?
- CORRECT ->>They can have very high global warming potentials
An example of a CFC refrigerant is:
- CORRECT ->> R-12
Which of the following is an HFC refrigerant?
- CORRECT ->>R-134a
Which of the following is a high-pressure refrigerant?
- CORRECT ->>R-410A
Which of the following refrigerants damages stratospheric ozone?
- CORRECT ->>HCFCs
What is the strongest evidence that HCFCs are in the stratosphere?
- CORRECT ->> Measurement of HCFCs and air samples from the stratosphere
Which type of refrigerant is the most harmful to stratospheric ozone?
- CORRECT ->>CFCs
Which refrigerant does not contain chlorine?
- CORRECT ->>R-134a
From which of the following does the ozone layer protect the earth?
- CORRECT ->>Ultraviolet radiation from the sun
Which of the following refrigerants have an ozone depletion potential of more than zero?
- CORRECT ->> R-123 and r-22
After the phase out of a refrigerant, where Will supplies of that refrigerant for equipment servicing come
from?
, - CORRECT ->>Recovery and reclaimed gas
Which of the following is a lawful use of HCFC-22?
- CORRECT ->>Servicing existing R-22 systems
Which of the following refrigerants contain chlorine?
- CORRECT ->>R-22
A refillable cylinder must not be filled above what percent of its capacity by weight?
- CORRECT ->>80%
Under what conditions may you use a disposable cylinder to recover refrigerant?
- CORRECT ->>Never
Where is the stratosphere located? - CORRECT ->>Between 7 and 30 miles above sea level.
What does an ozone molecule protect us from? - CORRECT ->>Harmful ultraviolet radiation from the
sun
What does an ozone molecule help maintain? - CORRECT ->>Stable earth temperatures
R-744
- CORRECT ->>Carbon dioxide
R-290
- CORRECT ->>Propane
What does ozone in the stratosphere above the earth consist of?
- CORRECT ->>Molecules containing 3 oxygen atoms
Which of the following refrigerants has the lowest global warming potential?
- CORRECT ->> R-600a
Which of the following gases is used as the baseline measurement for global warming potential?
- CORRECT ->> Carbon Dioxide
Which type of refrigerant typically has the lowest global warming potential?
- CORRECT ->> HFOs
What is the state of refrigerant entering the compressor of a refrigeration system?
- CORRECT ->> Low pressure superheated vapor
How does the global warming potential of R-410A compare to that of carbon dioxide?
- CORRECT ->>It is thousands of times greater.
How do the global warming potentials of isobutane (R-600a), propane (R-290), and R-441A compare to
the GWPs of HFC-134a, R404A, and R-410A?
- CORRECT ->> They are significantly lower.
What are the characteristics of hydrofluoroolefins (HFOs)?
- CORRECT ->> Non-ozone depleting and have low global warming potentials.
Why are HFO refrigerants less flammable than hydrocarbon refrigerants?
- CORRECT ->> They contain fluorine.
Which of the following refrigerants is an HFO?
- CORRECT ->>R-1234yf
