EPA 608 CERTIFICATION EXAM 2025/2026
QUESTIONS WITH VERIFIED CORRECT
SOLUTIONS || 100% GUARANTEED PASS
<BRAND NEW VERSION>
1. What does EPA-608 certification primarily focus on? - ANSWER ✓
Refrigerant handling and safety
2. Which refrigerant is commonly used in household air conditioning systems?
- ANSWER ✓ R-22
3. Which type of refrigerant certification is required for servicing high-pressure
systems? - ANSWER ✓ Type II
4. What is the purpose of the EPA regulations regarding refrigerant recovery
and recycling? - ANSWER ✓ To reduce greenhouse gas emissions
5. Which type of HVAC system typically uses a hermetic compressor? -
ANSWER ✓ Residential window air conditioner
6. What is the recommended evacuation level for removing air and moisture
from a refrigeration system? - ANSWER ✓ 29 inches of Hg
7. In which situation is it acceptable to release refrigerants into the
atmosphere? - ANSWER ✓ Never, unless it's necessary for safety
8. What safety precaution should be taken when using a torch for soldering
copper pipes in an HVAC system? - ANSWER ✓ Ensure proper ventilation
to prevent gas buildup
,9. What is the primary function of the condenser in a refrigeration system? -
ANSWER ✓ To reject heat from the refrigerant
10.What type of refrigerant is classified as an ozone-depleting substance
(ODS)? - ANSWER ✓ R-123
11.Which organization is responsible for regulating the handling of refrigerants
in the United States? - ANSWER ✓ EPA
12.A system is not dehydrated until a vacuum gauge shows you have reached
and HELD the? - ANSWER ✓ Required finished vacuum with the system
isolated from the vacuump pump
13.Technicians receiving a passing grade on the Type 2 examination are
certified to recover refrigerant during the maintenance service, or repair of
very-high, high, and medium pressure equipment - ANSWER ✓ True
14.Very-High pressure appliance identification unchanged by the EPAs march
12, 2004 rule change, An appliance that uses refrigerants with critical
temperatures below 104f or with a liquid phase saturation pressure above
355 PSIA at 104f this category includes but is not limited to appliances
using - ANSWER ✓ R-13, R-23, R-503
15.High pressure appliance prior to march 12, 2004 referred to by the EPA as a
higher-pressure appliance, an appliance that uses a refrigerant with a liquid
phase saturation pressure between 170 PSI and 355 PSI at 104f this
definition includes but is not limited to appliances using? - ANSWER ✓ R-
22, R-401B , R-402 A/B , R-404a, R-407a/B/C , R-408, R-409, R-410a, R-
411 A/B , R-502 and R-507a
16.Replacement of a evaporator coil, condenser oil, or compressor is always? -
ANSWER ✓ Considered major repairs
17.Reusable containers for refrigerants that are under high pressure (above 15
psig) at normal ambient temperature must be? - ANSWER ✓ Hydro-
statically tested and date stamped every 5 years
,18.As defined by ASHRAE standard 15, a sensor and alarm are required for
non-toxic refrigerants such as R-11 , R-12, R-22, And R-134a to sense
oxygen deprivation - ANSWER ✓ True
19.A refillable refrigerant cylinder must? - ANSWER ✓ Not be filled above
80% of its full capacity
20.There is no direct "drop-in" refrigerant for? - ANSWER ✓ Any CFC or
HCFC refrigerant
21.Medium pressure appliance prior to march 12,2004 referred by the EPA as
high pressure appliance an appliance that uses a refrigerant with liquid phase
saturation pressure between 45 psi and 170 psi at 104F, R-114 appliances are
at low-pressure and since the saturation pressure of R-11 at 104 is slightly
above 45 psi, this definition includes but is not limited to appliances using
R-12, R-114, R-124, R134a, R-401c, R-406a, and R-500 - ANSWER ✓
True
22.For the industrial process and commercial refrigeration sector, a 35%
leakage rate or more than 35% loss of charge/year is defined as a substantial
leak while for all other refrigeration systems with charge of 50 pounds or
more, a substantial leak is defined as leakage rate of 15% loss of charge/year
- ANSWER ✓ True
23.A non-azeotropic or zeotropic refrigerant blend, sometimes referred to
simply as a blend refrigerant has a range of boiling points o condensing
points throughout the evaporator and condenser,respectively the term used to
describe this are temperature glide or - ANSWER ✓ Gliding temperature
24.What is EPA 608 Type I certification? - ANSWER ✓ Persons who maintain,
service, repair, or dispose of small appliances (containing 5 pounds of
refrigerant (or less).
25.What is EPA 608 Type II certification? - ANSWER ✓ Persons who
maintain, service, repair, or dispose of high and very high pressure
appliances. Except small appliances and motor vehicle air conditioning
systems.
, 26.What is EPA 608 Type III certification? - ANSWER ✓ Persons who
maintain, service, repair, or dispose of low pressure appliances.
27.What is EPA 608 Universal certification? - ANSWER ✓ Persons who
maintain, service, repair, or dispose of both low and high pressure
equipment, as well as appliances.
28.HCFC's - ANSWER ✓ HydroChloroFluoroCarbons
29.What are HydroChloroFluoroCarbons? - ANSWER ✓ Commonly known as
HCFC's, they are a group of man-made compunds containing hydrogen,
chlorine, fluorine, and carbon.
30.A recovery cylinder must not be filled more than ___ % of it's capacity by
weight? - ANSWER ✓ 80%
31.How should refrigerant cylinders be shipped? - ANSWER ✓ Up-right with
proper DOT classification tags.
32.What oil MUST be used with ALL HFC's for HVAC/Refrigeration but will
also work with CFC's and HCFC's. - ANSWER ✓ Polyolester
33.HCFC's have very low atmospheric concentrations measured in parts per? -
ANSWER ✓ Trillion
34.All cooling systems containing more than 50 lbs. of refrigerant must be
repaired when the annual leak rate exceeds___? - ANSWER ✓ 15%
35.What factors affects the speed of evacuation? - ANSWER ✓ -) the size of
the equipment being evacuated
-) the ambient temperature
-) the amount of moisture in the system
36.What is the purpose of the recovery cylinder's relief valve? - ANSWER ✓
To prevent over-pressurization of the cylinder
37.Which refrigerant is known for its low Global Warming Potential (GWP)
and is often used as a replacement for R-22? - ANSWER ✓ R-290 (Propane)
QUESTIONS WITH VERIFIED CORRECT
SOLUTIONS || 100% GUARANTEED PASS
<BRAND NEW VERSION>
1. What does EPA-608 certification primarily focus on? - ANSWER ✓
Refrigerant handling and safety
2. Which refrigerant is commonly used in household air conditioning systems?
- ANSWER ✓ R-22
3. Which type of refrigerant certification is required for servicing high-pressure
systems? - ANSWER ✓ Type II
4. What is the purpose of the EPA regulations regarding refrigerant recovery
and recycling? - ANSWER ✓ To reduce greenhouse gas emissions
5. Which type of HVAC system typically uses a hermetic compressor? -
ANSWER ✓ Residential window air conditioner
6. What is the recommended evacuation level for removing air and moisture
from a refrigeration system? - ANSWER ✓ 29 inches of Hg
7. In which situation is it acceptable to release refrigerants into the
atmosphere? - ANSWER ✓ Never, unless it's necessary for safety
8. What safety precaution should be taken when using a torch for soldering
copper pipes in an HVAC system? - ANSWER ✓ Ensure proper ventilation
to prevent gas buildup
,9. What is the primary function of the condenser in a refrigeration system? -
ANSWER ✓ To reject heat from the refrigerant
10.What type of refrigerant is classified as an ozone-depleting substance
(ODS)? - ANSWER ✓ R-123
11.Which organization is responsible for regulating the handling of refrigerants
in the United States? - ANSWER ✓ EPA
12.A system is not dehydrated until a vacuum gauge shows you have reached
and HELD the? - ANSWER ✓ Required finished vacuum with the system
isolated from the vacuump pump
13.Technicians receiving a passing grade on the Type 2 examination are
certified to recover refrigerant during the maintenance service, or repair of
very-high, high, and medium pressure equipment - ANSWER ✓ True
14.Very-High pressure appliance identification unchanged by the EPAs march
12, 2004 rule change, An appliance that uses refrigerants with critical
temperatures below 104f or with a liquid phase saturation pressure above
355 PSIA at 104f this category includes but is not limited to appliances
using - ANSWER ✓ R-13, R-23, R-503
15.High pressure appliance prior to march 12, 2004 referred to by the EPA as a
higher-pressure appliance, an appliance that uses a refrigerant with a liquid
phase saturation pressure between 170 PSI and 355 PSI at 104f this
definition includes but is not limited to appliances using? - ANSWER ✓ R-
22, R-401B , R-402 A/B , R-404a, R-407a/B/C , R-408, R-409, R-410a, R-
411 A/B , R-502 and R-507a
16.Replacement of a evaporator coil, condenser oil, or compressor is always? -
ANSWER ✓ Considered major repairs
17.Reusable containers for refrigerants that are under high pressure (above 15
psig) at normal ambient temperature must be? - ANSWER ✓ Hydro-
statically tested and date stamped every 5 years
,18.As defined by ASHRAE standard 15, a sensor and alarm are required for
non-toxic refrigerants such as R-11 , R-12, R-22, And R-134a to sense
oxygen deprivation - ANSWER ✓ True
19.A refillable refrigerant cylinder must? - ANSWER ✓ Not be filled above
80% of its full capacity
20.There is no direct "drop-in" refrigerant for? - ANSWER ✓ Any CFC or
HCFC refrigerant
21.Medium pressure appliance prior to march 12,2004 referred by the EPA as
high pressure appliance an appliance that uses a refrigerant with liquid phase
saturation pressure between 45 psi and 170 psi at 104F, R-114 appliances are
at low-pressure and since the saturation pressure of R-11 at 104 is slightly
above 45 psi, this definition includes but is not limited to appliances using
R-12, R-114, R-124, R134a, R-401c, R-406a, and R-500 - ANSWER ✓
True
22.For the industrial process and commercial refrigeration sector, a 35%
leakage rate or more than 35% loss of charge/year is defined as a substantial
leak while for all other refrigeration systems with charge of 50 pounds or
more, a substantial leak is defined as leakage rate of 15% loss of charge/year
- ANSWER ✓ True
23.A non-azeotropic or zeotropic refrigerant blend, sometimes referred to
simply as a blend refrigerant has a range of boiling points o condensing
points throughout the evaporator and condenser,respectively the term used to
describe this are temperature glide or - ANSWER ✓ Gliding temperature
24.What is EPA 608 Type I certification? - ANSWER ✓ Persons who maintain,
service, repair, or dispose of small appliances (containing 5 pounds of
refrigerant (or less).
25.What is EPA 608 Type II certification? - ANSWER ✓ Persons who
maintain, service, repair, or dispose of high and very high pressure
appliances. Except small appliances and motor vehicle air conditioning
systems.
, 26.What is EPA 608 Type III certification? - ANSWER ✓ Persons who
maintain, service, repair, or dispose of low pressure appliances.
27.What is EPA 608 Universal certification? - ANSWER ✓ Persons who
maintain, service, repair, or dispose of both low and high pressure
equipment, as well as appliances.
28.HCFC's - ANSWER ✓ HydroChloroFluoroCarbons
29.What are HydroChloroFluoroCarbons? - ANSWER ✓ Commonly known as
HCFC's, they are a group of man-made compunds containing hydrogen,
chlorine, fluorine, and carbon.
30.A recovery cylinder must not be filled more than ___ % of it's capacity by
weight? - ANSWER ✓ 80%
31.How should refrigerant cylinders be shipped? - ANSWER ✓ Up-right with
proper DOT classification tags.
32.What oil MUST be used with ALL HFC's for HVAC/Refrigeration but will
also work with CFC's and HCFC's. - ANSWER ✓ Polyolester
33.HCFC's have very low atmospheric concentrations measured in parts per? -
ANSWER ✓ Trillion
34.All cooling systems containing more than 50 lbs. of refrigerant must be
repaired when the annual leak rate exceeds___? - ANSWER ✓ 15%
35.What factors affects the speed of evacuation? - ANSWER ✓ -) the size of
the equipment being evacuated
-) the ambient temperature
-) the amount of moisture in the system
36.What is the purpose of the recovery cylinder's relief valve? - ANSWER ✓
To prevent over-pressurization of the cylinder
37.Which refrigerant is known for its low Global Warming Potential (GWP)
and is often used as a replacement for R-22? - ANSWER ✓ R-290 (Propane)
