EPA SECTION 608 TYPE II CERTIFICATION
STUDY GUIDE 2019 REVISION 2026 EXAM
PREPARATION COMPREHENSIVE
PRACTICE QUESTIONS AND CORRECT
ANSWERS WITH DETAILED RATIONALES
HIGH PRESSURE APPLIANCES,
REFRIGERANT RECOVERY, LEAK
DETECTION, EPA REGULATIONS AND
HVAC TECHNICIAN REVIEW
A chiller used for comfort cooling that contains 50 pounds or more of R-123
is leaking. Starting in 2019, at wh When first inspecting a hermetic system
known to be leaking, you should look for;
a. frost on the tubing
b. puddles of refrigerant.
c. particles of filter drier core.
d. traces of oil. - CORRECT ANSWER -D
Which part of a belt-driven non-hermetic compressor is most likely to leak
if the compressor has not been used for serval months?
a. Suction service valve.
b. Rotating shaft seal.
,c. One or both of the king valves.
d. Head gasket on discharge side. - CORRECT ANSWER -B
Starting in 2019, what leak rate triggers the EPA requirement that
commercial refrigeration systems containing 50 pounds or more of R-22 be
repaired?
a. 10%.
b. 20%.
c. 30%.
d. 35%. - CORRECT ANSWER -B
A comfort-cooling appliance containing 50 pounds or more of R-22 is
found to be leaking beyond the applicable leak rate threshold. Unless
granted additional time, how many days do you have to repair the leak and
conduct the initial leak verification test?
a. 1 day
b. 10 days
c. 30 days
d. 45 days - CORRECT ANSWER -C
After a leak repair of a supermarket rack using 3000 lbs. of R-22 and a
successful initial verification test, when must a follow-up leak verification
test be conducted?
a. The same day.
b. The next day.
c. Within 10 days.
, d. Within 30 days. - CORRECT ANSWER -C
An initial leak verification test failed after repairing a leak in a rack
refrigeration system for a supermarket using an HCFC refrigerant. What
would be the next step(s)?
a. Immediately retrofit or retire the appliance.
b. Conduct additional repairs within the 30-day repair window or mothball
the appliance.
c. Conduct a follow-up verification test.
d. Report the amount of refrigerant added to the system to the EPA. -
CORRECT ANSWER -B
Which of the following CANNOT be used as a reason to extend the
appliance repair deadlines?
a. Requirements of federal, state, or local regulations make the repair
within 30 days impossible.
b. A necessary component is not available.
c. The appliance is located in an area that is subject to radiological
contamination.
d. A certified service technician is not available. - CORRECT ANSWER -D
When a trace gas becomes absolutely necessary, which of the available
refrigerants should be used to help locate a leak?
a. Nitrogen with HCFC R-22.
b. R-22 due to its universal system compatibility and its miscibility with
various oils.
c. Nitrogen with a trace amount of the system's design refrigerant.
STUDY GUIDE 2019 REVISION 2026 EXAM
PREPARATION COMPREHENSIVE
PRACTICE QUESTIONS AND CORRECT
ANSWERS WITH DETAILED RATIONALES
HIGH PRESSURE APPLIANCES,
REFRIGERANT RECOVERY, LEAK
DETECTION, EPA REGULATIONS AND
HVAC TECHNICIAN REVIEW
A chiller used for comfort cooling that contains 50 pounds or more of R-123
is leaking. Starting in 2019, at wh When first inspecting a hermetic system
known to be leaking, you should look for;
a. frost on the tubing
b. puddles of refrigerant.
c. particles of filter drier core.
d. traces of oil. - CORRECT ANSWER -D
Which part of a belt-driven non-hermetic compressor is most likely to leak
if the compressor has not been used for serval months?
a. Suction service valve.
b. Rotating shaft seal.
,c. One or both of the king valves.
d. Head gasket on discharge side. - CORRECT ANSWER -B
Starting in 2019, what leak rate triggers the EPA requirement that
commercial refrigeration systems containing 50 pounds or more of R-22 be
repaired?
a. 10%.
b. 20%.
c. 30%.
d. 35%. - CORRECT ANSWER -B
A comfort-cooling appliance containing 50 pounds or more of R-22 is
found to be leaking beyond the applicable leak rate threshold. Unless
granted additional time, how many days do you have to repair the leak and
conduct the initial leak verification test?
a. 1 day
b. 10 days
c. 30 days
d. 45 days - CORRECT ANSWER -C
After a leak repair of a supermarket rack using 3000 lbs. of R-22 and a
successful initial verification test, when must a follow-up leak verification
test be conducted?
a. The same day.
b. The next day.
c. Within 10 days.
, d. Within 30 days. - CORRECT ANSWER -C
An initial leak verification test failed after repairing a leak in a rack
refrigeration system for a supermarket using an HCFC refrigerant. What
would be the next step(s)?
a. Immediately retrofit or retire the appliance.
b. Conduct additional repairs within the 30-day repair window or mothball
the appliance.
c. Conduct a follow-up verification test.
d. Report the amount of refrigerant added to the system to the EPA. -
CORRECT ANSWER -B
Which of the following CANNOT be used as a reason to extend the
appliance repair deadlines?
a. Requirements of federal, state, or local regulations make the repair
within 30 days impossible.
b. A necessary component is not available.
c. The appliance is located in an area that is subject to radiological
contamination.
d. A certified service technician is not available. - CORRECT ANSWER -D
When a trace gas becomes absolutely necessary, which of the available
refrigerants should be used to help locate a leak?
a. Nitrogen with HCFC R-22.
b. R-22 due to its universal system compatibility and its miscibility with
various oils.
c. Nitrogen with a trace amount of the system's design refrigerant.
