SKILLCAT TYPE 1 EPA 608 Latest 300 real
exam questions and correct answers review 2026-
2027/ EPA 608 TYPE 1 Exam prep / EPA 608
SKILLCAT TYPE 1 Exam review
1: We only have to recover refrigerants before servicing systems containing CFCs
and HCFCs.
A. True
B. False
-ANSWER- B
Rationale: Refrigerants must be recovered before servicing systems containing
CFCs, HCFCs, and HFCs.
2: According to EPA 608 retrofit guidelines, which refrigerant is approved for
retrofitting certain low-temperature R-22 systems, such as household freezers,
when proper oil changes and system modifications are performed?
A. R-12
B. R-600A
C. R-407A
D. None of these
-ANSWER- C
Rationale: R-407A is approved for retrofitting certain low-temperature R-22
systems, such as household freezers, when proper oil changes and system
modifications are performed.
3: Up to how many pounds of refrigerant can Type I appliances contain?
A. 3
B. 5
C. 15
D. 50
-ANSWER- B
Rationale: Type I appliances can contain up to 5 pounds of refrigerant.
1
,4: Which statement about hydrocarbon refrigerants is correct under EPA SNAP
rules?
A. Hydrocarbons are highly flammable
B. Hydrocarbons may be freely used to retrofit any existing system
C. Hydrocarbons do not require use conditions
D. Hydrocarbons are approved for all refrigeration applications
-ANSWER- A
Rationale: Hydrocarbons are highly flammable.
5: Which of the following is not true?
A. SNAP lists acceptable substitutes for phased out refrigerants for different
categories of end-uses
B. SNAP is implemented by the EPA
C. Refrigerants can be classified as unacceptable under SNAP
D. None of these
-ANSWER- D
Rationale: All of the statements are true about SNAP.
6: Which of the following statements is true about refrigerant recovery?
A. You can only sell refrigerant that is reclaimed to virgin specifications
B. Reclaimers can refuse to accept contaminated refrigerant
C. Reclaimers can charge extra for processing contaminated refrigerant
D. All of these
-ANSWER- D
Rationale: All of these statements are true about refrigerant recovery.
7: Which of the following refrigerants is not covered by the sales restriction of
Section 608?
A. R-717
B. R-134a
C. R-22
D. R-12
-ANSWER- A
Rationale: R-717 (ammonia) is not covered by the sales restriction of Section 608.
8: A near azeotropic blend will contain:
A. One saturation pressure value
B. One high saturation pressure value
C. Two saturation pressure values that are close
2
,D. Two saturation pressure values that have a big difference
-ANSWER- C
Rationale: A near azeotropic blend contains two saturation pressure values that are
close.
9: A zeotropic blend will contain:
A. One saturation pressure value
B. One high saturation pressure value
C. Two saturation pressure values that are close
D. Two saturation pressure values that have a big difference
-ANSWER- D
Rationale: A zeotropic blend contains two saturation pressure values that have a
big difference.
10: Access fittings:
A. Need to be leak tested before recovering refrigerant
B. Are used to gain access to closed systems
C. Are used with window AC units
D. All of these
-ANSWER- D
Rationale: Access fittings need to be leak tested before recovering refrigerant, are
used to gain access to closed systems, and are used with window AC units.
11: Defrost heaters in frost-free refrigerators can help with which of the following?
(Select all that apply)
A. Melt frost buildup on the evaporator coil
B. Increase refrigerant recovery speed by warming the system
C. Operate in all Type I appliances
D. Eliminate the need for refrigerant recovery equipment
-ANSWER- A, B
Rationale: Defrost heaters can melt frost buildup on the evaporator coil and
increase refrigerant recovery speed by warming the system.
12: If the compressor is not working and we are performing passive recovery, we
need to take steps to do what?
A. Recover at least 80% of charge indicated on appliance nameplate
B. Vacate the area
C. Ventilate the working space
D. Release trapped refrigerant from the compressor oil
3
, -ANSWER- A
Rationale: If the compressor is not working and we are performing passive
recovery, we need to recover at least 80% of charge indicated on appliance
nameplate.
13: If the pressure of the system is found to be 0 psig, can we recover refrigerant
from the system?
A. Yes
B. No
C. It depends on how much refrigerant is left
D. It depends on the type of refrigerant
-ANSWER- A
Rationale: Yes, refrigerant can still be recovered from a system with a pressure of
0 psig.
14: If the pressure reading and expected pressure are far apart, which of the
following are possibly contained in the refrigerant?
A. Air
B. Water vapor
C. Nitrogen
D. All of these
-ANSWER- D
Rationale: Air, water vapor, and nitrogen are all possible non-condensables that
could be contained in the refrigerant.
15: A sealed household refrigerator has a working compressor and a blocked
capillary tube. To recover the charge, what access setup is required?
A. One access valve on the high side only
B. Two access valves, one on each side
C. No access valves; pull through service port
D. One access valve on the low side only
-ANSWER- A
Rationale: One access valve on the high side only is required to recover the charge.
16: Solderless piercing valves:
A. Tend to leak over time
B. Are for permanent use
C. Should not be left on the appliance after service
D. Both (a) and (c)
4
exam questions and correct answers review 2026-
2027/ EPA 608 TYPE 1 Exam prep / EPA 608
SKILLCAT TYPE 1 Exam review
1: We only have to recover refrigerants before servicing systems containing CFCs
and HCFCs.
A. True
B. False
-ANSWER- B
Rationale: Refrigerants must be recovered before servicing systems containing
CFCs, HCFCs, and HFCs.
2: According to EPA 608 retrofit guidelines, which refrigerant is approved for
retrofitting certain low-temperature R-22 systems, such as household freezers,
when proper oil changes and system modifications are performed?
A. R-12
B. R-600A
C. R-407A
D. None of these
-ANSWER- C
Rationale: R-407A is approved for retrofitting certain low-temperature R-22
systems, such as household freezers, when proper oil changes and system
modifications are performed.
3: Up to how many pounds of refrigerant can Type I appliances contain?
A. 3
B. 5
C. 15
D. 50
-ANSWER- B
Rationale: Type I appliances can contain up to 5 pounds of refrigerant.
1
,4: Which statement about hydrocarbon refrigerants is correct under EPA SNAP
rules?
A. Hydrocarbons are highly flammable
B. Hydrocarbons may be freely used to retrofit any existing system
C. Hydrocarbons do not require use conditions
D. Hydrocarbons are approved for all refrigeration applications
-ANSWER- A
Rationale: Hydrocarbons are highly flammable.
5: Which of the following is not true?
A. SNAP lists acceptable substitutes for phased out refrigerants for different
categories of end-uses
B. SNAP is implemented by the EPA
C. Refrigerants can be classified as unacceptable under SNAP
D. None of these
-ANSWER- D
Rationale: All of the statements are true about SNAP.
6: Which of the following statements is true about refrigerant recovery?
A. You can only sell refrigerant that is reclaimed to virgin specifications
B. Reclaimers can refuse to accept contaminated refrigerant
C. Reclaimers can charge extra for processing contaminated refrigerant
D. All of these
-ANSWER- D
Rationale: All of these statements are true about refrigerant recovery.
7: Which of the following refrigerants is not covered by the sales restriction of
Section 608?
A. R-717
B. R-134a
C. R-22
D. R-12
-ANSWER- A
Rationale: R-717 (ammonia) is not covered by the sales restriction of Section 608.
8: A near azeotropic blend will contain:
A. One saturation pressure value
B. One high saturation pressure value
C. Two saturation pressure values that are close
2
,D. Two saturation pressure values that have a big difference
-ANSWER- C
Rationale: A near azeotropic blend contains two saturation pressure values that are
close.
9: A zeotropic blend will contain:
A. One saturation pressure value
B. One high saturation pressure value
C. Two saturation pressure values that are close
D. Two saturation pressure values that have a big difference
-ANSWER- D
Rationale: A zeotropic blend contains two saturation pressure values that have a
big difference.
10: Access fittings:
A. Need to be leak tested before recovering refrigerant
B. Are used to gain access to closed systems
C. Are used with window AC units
D. All of these
-ANSWER- D
Rationale: Access fittings need to be leak tested before recovering refrigerant, are
used to gain access to closed systems, and are used with window AC units.
11: Defrost heaters in frost-free refrigerators can help with which of the following?
(Select all that apply)
A. Melt frost buildup on the evaporator coil
B. Increase refrigerant recovery speed by warming the system
C. Operate in all Type I appliances
D. Eliminate the need for refrigerant recovery equipment
-ANSWER- A, B
Rationale: Defrost heaters can melt frost buildup on the evaporator coil and
increase refrigerant recovery speed by warming the system.
12: If the compressor is not working and we are performing passive recovery, we
need to take steps to do what?
A. Recover at least 80% of charge indicated on appliance nameplate
B. Vacate the area
C. Ventilate the working space
D. Release trapped refrigerant from the compressor oil
3
, -ANSWER- A
Rationale: If the compressor is not working and we are performing passive
recovery, we need to recover at least 80% of charge indicated on appliance
nameplate.
13: If the pressure of the system is found to be 0 psig, can we recover refrigerant
from the system?
A. Yes
B. No
C. It depends on how much refrigerant is left
D. It depends on the type of refrigerant
-ANSWER- A
Rationale: Yes, refrigerant can still be recovered from a system with a pressure of
0 psig.
14: If the pressure reading and expected pressure are far apart, which of the
following are possibly contained in the refrigerant?
A. Air
B. Water vapor
C. Nitrogen
D. All of these
-ANSWER- D
Rationale: Air, water vapor, and nitrogen are all possible non-condensables that
could be contained in the refrigerant.
15: A sealed household refrigerator has a working compressor and a blocked
capillary tube. To recover the charge, what access setup is required?
A. One access valve on the high side only
B. Two access valves, one on each side
C. No access valves; pull through service port
D. One access valve on the low side only
-ANSWER- A
Rationale: One access valve on the high side only is required to recover the charge.
16: Solderless piercing valves:
A. Tend to leak over time
B. Are for permanent use
C. Should not be left on the appliance after service
D. Both (a) and (c)
4