ESCO EPA 608 CORE Exam Questions and Answers With Verified Solutions 2025
An ozone molecule contains - ✔✔3 oxygen atoms
Which international agreement (Treaty) regulated the production and use of CFCs, HCFCs, halons,
methyl chloroform and carbon tetrachloride? - ✔✔Montreal Protocol
Silicone elastomers, for use in seals and gaskets, are not compatible with which refrigerants? - ✔✔HFOs
Which of the following refrigerant has a GWP closest to "1"? - ✔✔R-1233zd or CO2
The condenser _______________________________________ - ✔✔Changes a high-pressure vapor to a
high-pressure liquid.
The chlorine in CFCs and HCFCs; - ✔✔Will not dissolve in water.
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the
proper disposal method for; - ✔✔Disposable cylinders
Which ASHRAE classification means slightly flammable? - ✔✔A2L
What is the Significant New Alternatives Policy (SNAP) Program? - ✔✔EPA's program that identifies
refrigerants with lower overall risks to human health and the environment.
HCFCs contain; - ✔✔Hydrogen, Chlorine, Fluorine, and Carbon
The low-side test-pressure data-plate value should be used by a technician to determine a safe pressure
for: - ✔✔Leak testing.
HFCs ________; - ✔✔Will not damage stratospheric ozone, but have a high GWP.
, Which type of refrigerant contains no chlorine? - ✔✔HFCs
Reusable refrigerant containers under high-pressure must be hydrostatically tested how often? - ✔✔5
years
To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical
analysis defines; - ✔✔Reclaiming
The molecule found in CFCs and HCFCs that depletes ozone is: - ✔✔Chlorine
Which of the following refrigerants is an HFO? - ✔✔R-1234ze
A single chlorine atom can destroy how many ozone molecules? - ✔✔100,000
Before shipping any used refrigerant cylinders, check that the cylinder meets what standards: -
✔✔Department of Transportation
How much can a person be fined per day per violation for knowingly releasing a regulated substance
that violates the Clean Air Act? - ✔✔$44,539
Crop loss, eye disease, and skin cancer have been attributed to; - ✔✔Depletion of Stratospheric ozone
A refrigerant cylinder designed to hold recovered refrigerant has a: - ✔✔grey body and yellow top.
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; - ✔✔Recycle
Which of the following has the highest Ozone Depletion Potential? - ✔✔CFCs
An ozone molecule contains - ✔✔3 oxygen atoms
Which international agreement (Treaty) regulated the production and use of CFCs, HCFCs, halons,
methyl chloroform and carbon tetrachloride? - ✔✔Montreal Protocol
Silicone elastomers, for use in seals and gaskets, are not compatible with which refrigerants? - ✔✔HFOs
Which of the following refrigerant has a GWP closest to "1"? - ✔✔R-1233zd or CO2
The condenser _______________________________________ - ✔✔Changes a high-pressure vapor to a
high-pressure liquid.
The chlorine in CFCs and HCFCs; - ✔✔Will not dissolve in water.
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the
proper disposal method for; - ✔✔Disposable cylinders
Which ASHRAE classification means slightly flammable? - ✔✔A2L
What is the Significant New Alternatives Policy (SNAP) Program? - ✔✔EPA's program that identifies
refrigerants with lower overall risks to human health and the environment.
HCFCs contain; - ✔✔Hydrogen, Chlorine, Fluorine, and Carbon
The low-side test-pressure data-plate value should be used by a technician to determine a safe pressure
for: - ✔✔Leak testing.
HFCs ________; - ✔✔Will not damage stratospheric ozone, but have a high GWP.
, Which type of refrigerant contains no chlorine? - ✔✔HFCs
Reusable refrigerant containers under high-pressure must be hydrostatically tested how often? - ✔✔5
years
To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical
analysis defines; - ✔✔Reclaiming
The molecule found in CFCs and HCFCs that depletes ozone is: - ✔✔Chlorine
Which of the following refrigerants is an HFO? - ✔✔R-1234ze
A single chlorine atom can destroy how many ozone molecules? - ✔✔100,000
Before shipping any used refrigerant cylinders, check that the cylinder meets what standards: -
✔✔Department of Transportation
How much can a person be fined per day per violation for knowingly releasing a regulated substance
that violates the Clean Air Act? - ✔✔$44,539
Crop loss, eye disease, and skin cancer have been attributed to; - ✔✔Depletion of Stratospheric ozone
A refrigerant cylinder designed to hold recovered refrigerant has a: - ✔✔grey body and yellow top.
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; - ✔✔Recycle
Which of the following has the highest Ozone Depletion Potential? - ✔✔CFCs
