EPA SECTION 608 TYPE II EXAM 1 2026/2027
QUESTIONS AND ANSWERS
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.
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.
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.
,d. Nitrogen with HFC R-410A.
C
Which of the following is an indicator of a leak in a high-pressure system with a capillary tube?
a. High head pressure
b. Low water temperature
c. Excessive superheat
d. Frequent purging
C
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.
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.
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%.
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
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.
QUESTIONS AND ANSWERS
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.
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.
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.
,d. Nitrogen with HFC R-410A.
C
Which of the following is an indicator of a leak in a high-pressure system with a capillary tube?
a. High head pressure
b. Low water temperature
c. Excessive superheat
d. Frequent purging
C
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.
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.
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%.
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
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.
