EPA Section 608 Type II Certification
Exam With Actual Questions & Verified
Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed Pass 2026/Latest
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1. What type of system does a Type II technician primarily work
with?
A) Small appliances
B) High-pressure and very high-pressure appliances
C) Low-pressure appliances
D) Refrigerant recovery cylinders
B) High-pressure and very high-pressure appliances
Rationale: Type II certification allows technicians to work on
high-pressure systems, such as air conditioning and commercial
refrigeration, unlike Type I which is limited to small appliances.
2. What is the maximum allowable leak rate for commercial
refrigeration systems containing more than 50 lbs of refrigerant?
A) 5% per year
B) 10% per year
C) 15% per year
D) 20% per year
B) 10% per year
, Rationale: EPA regulations specify that systems over 50 lbs must
be repaired if the leak rate exceeds 10% per year.
3. Which refrigerant is considered a high-pressure refrigerant under
EPA rules?
A) R-134a
B) R-22
C) R-123
D) R-717
B) R-22
Rationale: R-22 is classified as a high-pressure refrigerant,
commonly used in commercial and residential systems before
being phased out.
4. What tool is used to detect refrigerant leaks in a Type II system?
A) Manifold gauge set
B) Electronic leak detector
C) Vacuum pump
D) Recovery cylinder
B) Electronic leak detector
Rationale: Leak detectors are designed to identify refrigerant
leaks, a requirement under EPA regulations for high-pressure
systems.
5. Before opening a high-pressure system, what must a technician
do?
A) Check oil levels
B) Recover refrigerant to the required level
C) Check electrical connections
D) Install new compressors
B) Recover refrigerant to the required level
, Rationale: EPA mandates that refrigerant must be recovered
before opening a system to prevent emissions.
6. Which type of recovery equipment is required for Type II systems?
A) Only passive recovery units
B) EPA-certified recovery/recycling equipment
C) Non-certified hoses
D) Only recovery cylinders
B) EPA-certified recovery/recycling equipment
Rationale: Recovery equipment must be certified by the EPA to
ensure safe handling of refrigerants.
7. What is the primary purpose of a micron gauge?
A) Measure refrigerant pressure
B) Measure the level of vacuum in a system
C) Detect leaks
D) Check oil quality
B) Measure the level of vacuum in a system
Rationale: A micron gauge accurately measures the vacuum
level during evacuation, ensuring all moisture and air are
removed.
8. When adding refrigerant to a system, what must be monitored to
prevent overcharging?
A) Ambient temperature
B) System pressure and superheat/subcooling
C) Oil color
D) Compressor voltage
B) System pressure and superheat/subcooling
Rationale: Proper charging requires monitoring pressures and
temperatures to match manufacturer specifications.
, 9. What is the maximum allowable pressure for R-22 in a Type II
system at 104°F ambient?
A) 150 psi
B) 350 psi
C) 400 psi
D) 250 psi
C) 400 psi
Rationale: High-pressure refrigerants have maximum allowable
operating pressures depending on temperature; R-22 can reach
about 400 psi at 104°F.
10. What is the recovery requirement for non-operating
appliances under EPA rules?
A) Recover all refrigerant
B) Only recover 50%
C) Recovery is optional
D) Vent refrigerant outdoors
A) Recover all refrigerant
Rationale: Non-operating appliances must have all refrigerant
recovered to prevent environmental release.
11. Which component stores excess liquid refrigerant in a high-
pressure system?
A) Evaporator
B) Condenser
C) Receiver
D) Expansion valve
C) Receiver
Rationale: The receiver acts as a reservoir for liquid refrigerant
and ensures proper system operation.
Exam With Actual Questions & Verified
Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed Pass 2026/Latest
Updated/Instant Download Pdf
1. What type of system does a Type II technician primarily work
with?
A) Small appliances
B) High-pressure and very high-pressure appliances
C) Low-pressure appliances
D) Refrigerant recovery cylinders
B) High-pressure and very high-pressure appliances
Rationale: Type II certification allows technicians to work on
high-pressure systems, such as air conditioning and commercial
refrigeration, unlike Type I which is limited to small appliances.
2. What is the maximum allowable leak rate for commercial
refrigeration systems containing more than 50 lbs of refrigerant?
A) 5% per year
B) 10% per year
C) 15% per year
D) 20% per year
B) 10% per year
, Rationale: EPA regulations specify that systems over 50 lbs must
be repaired if the leak rate exceeds 10% per year.
3. Which refrigerant is considered a high-pressure refrigerant under
EPA rules?
A) R-134a
B) R-22
C) R-123
D) R-717
B) R-22
Rationale: R-22 is classified as a high-pressure refrigerant,
commonly used in commercial and residential systems before
being phased out.
4. What tool is used to detect refrigerant leaks in a Type II system?
A) Manifold gauge set
B) Electronic leak detector
C) Vacuum pump
D) Recovery cylinder
B) Electronic leak detector
Rationale: Leak detectors are designed to identify refrigerant
leaks, a requirement under EPA regulations for high-pressure
systems.
5. Before opening a high-pressure system, what must a technician
do?
A) Check oil levels
B) Recover refrigerant to the required level
C) Check electrical connections
D) Install new compressors
B) Recover refrigerant to the required level
, Rationale: EPA mandates that refrigerant must be recovered
before opening a system to prevent emissions.
6. Which type of recovery equipment is required for Type II systems?
A) Only passive recovery units
B) EPA-certified recovery/recycling equipment
C) Non-certified hoses
D) Only recovery cylinders
B) EPA-certified recovery/recycling equipment
Rationale: Recovery equipment must be certified by the EPA to
ensure safe handling of refrigerants.
7. What is the primary purpose of a micron gauge?
A) Measure refrigerant pressure
B) Measure the level of vacuum in a system
C) Detect leaks
D) Check oil quality
B) Measure the level of vacuum in a system
Rationale: A micron gauge accurately measures the vacuum
level during evacuation, ensuring all moisture and air are
removed.
8. When adding refrigerant to a system, what must be monitored to
prevent overcharging?
A) Ambient temperature
B) System pressure and superheat/subcooling
C) Oil color
D) Compressor voltage
B) System pressure and superheat/subcooling
Rationale: Proper charging requires monitoring pressures and
temperatures to match manufacturer specifications.
, 9. What is the maximum allowable pressure for R-22 in a Type II
system at 104°F ambient?
A) 150 psi
B) 350 psi
C) 400 psi
D) 250 psi
C) 400 psi
Rationale: High-pressure refrigerants have maximum allowable
operating pressures depending on temperature; R-22 can reach
about 400 psi at 104°F.
10. What is the recovery requirement for non-operating
appliances under EPA rules?
A) Recover all refrigerant
B) Only recover 50%
C) Recovery is optional
D) Vent refrigerant outdoors
A) Recover all refrigerant
Rationale: Non-operating appliances must have all refrigerant
recovered to prevent environmental release.
11. Which component stores excess liquid refrigerant in a high-
pressure system?
A) Evaporator
B) Condenser
C) Receiver
D) Expansion valve
C) Receiver
Rationale: The receiver acts as a reservoir for liquid refrigerant
and ensures proper system operation.
