EPA 608 Type III Exam Questions with
correct Answers 2025/2026 A+ Graded
100% Verified.
What do R-11 and R-123 refrigerants have in common?
A. They are oxygen depleting
B. They are Class I and II substances as defined by the EPA
C. Both A and B
D. Neither A nor B - ANS- C. Both A and B
What is the required evacuation level for recovering refrigerant from a low-pressure
appliance with a recovery machine manufactured before November 15, 1993?
A. 0 psig
B. 4" Hg
C. 10 A Hg
D. 25" Hg - ANS- D. 25" Hg
How is frost best removed from a sight glass?
A. reverse the refrigeration cycle.
B. Scrape or chip the ice off.
C. spray the sight glass with alcohol.
D. turn off the water supply. - ANS- C. spray the sight glass with alcohol.
What is the color code for a recovery cylinder for R- 22?
A. Gray with yellow top.
B. Yellow with gray top.
C. Yellow with white top.
D. White with yellow top. - ANS- A. Gray with yellow top
Why do low-pressure chillers require purge units?
A. they operate below atmospheric pressure.
, B. they draw non-condensables through gaskets and seals.
C. Both A or B.
D. Neither A nor B. - ANS- C. Both A or B.
What is connected to the rupture disk of a low- pressure chiller?
A. the low side.
B. the high side.
C. the compressor.
D. the purge valve. - ANS- A. the low side.
The purge unit draws from the:
A. rupture disk.
B. suction of the compressor.
C. evaporator.
D. top of the condenser. - ANS- D. top of the condenser.
Before a low-pressure appliance is dismantled for salvage, the refrigerant must be:
A. recovered
B. recycled.
C. reclaimed.
D. vented. - ANS- A. recovered
Machine- room safety standards are established by:
A. ARI-7000
B. ARI-740
C. ASHRAE 34
D. ASHRAE 15 - ANS- D. ASHRAE 15
Recovery machines that use water as a condensing medium generally use:
A. cooling tower water.
B. municipal water.
C. condensate water.
D. chilled water. - ANS- B. municipal water.
What is the color code for a recovery cylinder for R- 12?
A. yellow with gray top.
correct Answers 2025/2026 A+ Graded
100% Verified.
What do R-11 and R-123 refrigerants have in common?
A. They are oxygen depleting
B. They are Class I and II substances as defined by the EPA
C. Both A and B
D. Neither A nor B - ANS- C. Both A and B
What is the required evacuation level for recovering refrigerant from a low-pressure
appliance with a recovery machine manufactured before November 15, 1993?
A. 0 psig
B. 4" Hg
C. 10 A Hg
D. 25" Hg - ANS- D. 25" Hg
How is frost best removed from a sight glass?
A. reverse the refrigeration cycle.
B. Scrape or chip the ice off.
C. spray the sight glass with alcohol.
D. turn off the water supply. - ANS- C. spray the sight glass with alcohol.
What is the color code for a recovery cylinder for R- 22?
A. Gray with yellow top.
B. Yellow with gray top.
C. Yellow with white top.
D. White with yellow top. - ANS- A. Gray with yellow top
Why do low-pressure chillers require purge units?
A. they operate below atmospheric pressure.
, B. they draw non-condensables through gaskets and seals.
C. Both A or B.
D. Neither A nor B. - ANS- C. Both A or B.
What is connected to the rupture disk of a low- pressure chiller?
A. the low side.
B. the high side.
C. the compressor.
D. the purge valve. - ANS- A. the low side.
The purge unit draws from the:
A. rupture disk.
B. suction of the compressor.
C. evaporator.
D. top of the condenser. - ANS- D. top of the condenser.
Before a low-pressure appliance is dismantled for salvage, the refrigerant must be:
A. recovered
B. recycled.
C. reclaimed.
D. vented. - ANS- A. recovered
Machine- room safety standards are established by:
A. ARI-7000
B. ARI-740
C. ASHRAE 34
D. ASHRAE 15 - ANS- D. ASHRAE 15
Recovery machines that use water as a condensing medium generally use:
A. cooling tower water.
B. municipal water.
C. condensate water.
D. chilled water. - ANS- B. municipal water.
What is the color code for a recovery cylinder for R- 12?
A. yellow with gray top.
