ESCO EPA Universal Practice Exam Questions and Answers Latest Update 2025-2026
Which ASHRAE classification means slightly flammable?
A-A1
B-A2L
C-A3
D-B1 - Answers B
How much can a person be fined per day per violation for knowingly releasing a regulated
substance that violates the Clean Air Act?
A-$10,000
B-$25,000
C-$37,000
D-$44,539 - Answers D
The molecule found in CFCs and HCFCs that depletes ozone is:
A-Fluorine
B-Hydrogen
C-Carbon
D-Chlorine - Answers D
HFCs ________;
A-will not damage stratospheric ozone, but have a high GWP.
B-will damage stratospheric ozone and have a low GWP.
C-will not deplete stratospheric ozone and have a low GWP.
D-are only harmful to ground level ozone. - Answers A
Which type of refrigerant contains no chlorine?
A-HCFCs
B-HCFC Blends
C-HFCs
,D-CFCs - Answers C
The condenser _______________________________________
A-changes a high-pressure vapor to a high-pressure liquid.
B-changes a low-pressure vapor to a low-pressure liquid.
C-changes a high-pressure liquid to a low-pressure liquid.
D-changes a low-pressure liquid to a low-pressure vapor. - Answers A
Which of the following has the highest Ozone Depletion Potential?
A-HFOs
B-HCFCs
C-HFCs
D-CFCs - Answers D
The compressor ____________________________________
A-changes a high-pressure vapor to a high-pressure liquid.
B-changes a low-pressure vapor to a high-pressure vapor.
C-changes a high-pressure liquid to a low-pressure liquid.
D-changes a low-pressure liquid to a low-pressure vapor. - Answers B
A refrigerant cylinder designed to hold recovered refrigerant has a:
A-yellow body and grey top.
B-grey body and yellow top.
C-green body and yellow top.
D-orange body and grey top. - Answers B
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;
A-Recover
B-Reclaim
C-Reuse
, D-Recycle - Answers D
The low-side test-pressure data-plate value should be used by a technician to determine a safe
pressure for:
A-recovering refrigerant.
B-leak testing.
C-refrigerant charging.
D-retrofitting a system. - Answers B
Before shipping any used refrigerant cylinders, check that the cylinder meets what standards:
A-Department of Transportation
B-The Significant New Alternatives Policy (SNAP)
C-Underwriters Laboratories
D-All of the above - Answers A
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is
the proper disposal method for;
A-Recovery cylinders
B-One pound cans
C-Disposable cylinders
D-Accumulator cylinders - Answers C
A single chlorine atom can destroy how many ozone molecules?
A-100
B-1,000
C-10,000
D-100,000 - Answers D
To process refrigerant to a level equal to new (virgin) product specifications as determined by
chemical analysis defines;
A-Recovery
B-Reclaiming
Which ASHRAE classification means slightly flammable?
A-A1
B-A2L
C-A3
D-B1 - Answers B
How much can a person be fined per day per violation for knowingly releasing a regulated
substance that violates the Clean Air Act?
A-$10,000
B-$25,000
C-$37,000
D-$44,539 - Answers D
The molecule found in CFCs and HCFCs that depletes ozone is:
A-Fluorine
B-Hydrogen
C-Carbon
D-Chlorine - Answers D
HFCs ________;
A-will not damage stratospheric ozone, but have a high GWP.
B-will damage stratospheric ozone and have a low GWP.
C-will not deplete stratospheric ozone and have a low GWP.
D-are only harmful to ground level ozone. - Answers A
Which type of refrigerant contains no chlorine?
A-HCFCs
B-HCFC Blends
C-HFCs
,D-CFCs - Answers C
The condenser _______________________________________
A-changes a high-pressure vapor to a high-pressure liquid.
B-changes a low-pressure vapor to a low-pressure liquid.
C-changes a high-pressure liquid to a low-pressure liquid.
D-changes a low-pressure liquid to a low-pressure vapor. - Answers A
Which of the following has the highest Ozone Depletion Potential?
A-HFOs
B-HCFCs
C-HFCs
D-CFCs - Answers D
The compressor ____________________________________
A-changes a high-pressure vapor to a high-pressure liquid.
B-changes a low-pressure vapor to a high-pressure vapor.
C-changes a high-pressure liquid to a low-pressure liquid.
D-changes a low-pressure liquid to a low-pressure vapor. - Answers B
A refrigerant cylinder designed to hold recovered refrigerant has a:
A-yellow body and grey top.
B-grey body and yellow top.
C-green body and yellow top.
D-orange body and grey top. - Answers B
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;
A-Recover
B-Reclaim
C-Reuse
, D-Recycle - Answers D
The low-side test-pressure data-plate value should be used by a technician to determine a safe
pressure for:
A-recovering refrigerant.
B-leak testing.
C-refrigerant charging.
D-retrofitting a system. - Answers B
Before shipping any used refrigerant cylinders, check that the cylinder meets what standards:
A-Department of Transportation
B-The Significant New Alternatives Policy (SNAP)
C-Underwriters Laboratories
D-All of the above - Answers A
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is
the proper disposal method for;
A-Recovery cylinders
B-One pound cans
C-Disposable cylinders
D-Accumulator cylinders - Answers C
A single chlorine atom can destroy how many ozone molecules?
A-100
B-1,000
C-10,000
D-100,000 - Answers D
To process refrigerant to a level equal to new (virgin) product specifications as determined by
chemical analysis defines;
A-Recovery
B-Reclaiming
