EPA 608 Type 3
1. ______ is the process of removing refrigerant in any condition from a
system and storing it in an external container without necessarily testing or
processing it in any way.
● A. Reclaiming
● B. Recycling
● C. Recovering
● D. Recharging
Answer: C. Recovering
2. _______ refers to the process of cleaning refrigerant by oil separation and
single or multiple passes through filter driers which reduce moisture and
acidity.
● A. Recovering
● B. Recycling
● C. Reclaiming
● D. Recharging
Answer: B. Recycling
3. A compressor heater is used to:
● A. Warm the refrigerant
● B. Prevent freeze-up
● C. Increase compression ratio
● D. Reduce the amount of refrigerant in the lubricating oil
Answer: D. Reduce the amount of refrigerant in the lubricating oil
4. A cylinder with a grey body and yellow top is designed to hold:
● A. New refrigerant
● B. Recovered refrigerant
● C. Nitrogen
● D. Oxygen
,Answer: B. Recovered refrigerant
5. A hydrostatic tube test kit is used to:
● A. Measure pressure
● B. Check for leaks in tubes
● C. Determine if a tube leaks
● D. Test vacuum levels
Answer: C. Determine if a tube leaks
6. A passive system-dependent recovery device for small appliances:
● A. Uses a compressor
● B. Requires electricity
● C. Captures refrigerant in a non-pressurized container
● D. Works only on large systems
Answer: C. Captures refrigerant in a non-pressurized container
7. A reciprocating compressor should not be energized if the:
● A. Suction service valve is closed
● B. Liquid line is open
● C. System is charged
● D. Discharge service valve is closed
Answer: D. Discharge service valve is closed
8. A recovery cylinder which is 1/2 full of recovered R-410A @ 90°F, in the
absence of non-condensables will be pressurized to:
● A. 150 psig
● B. 200 psig
● C. 300 psig
● D. 400 psig
Answer: C. 300 psig
, 9. A recovery cylinder which is 1/2 full of recovered R-22 at normal room
temperature about 75°F, in the absence of non-condensables, will be
pressurized to:
● A. 50 psig
● B. 75 psig
● C. 100 psig
● D. 125 psig
Answer: B. 75 psig
10. A refrigerant that can be used as a direct service drop-in substitute for
R-12 in a small appliance is:
● A. R-134a
● B. R-22
● C. R-410A
● D. NONE
Answer: D. NONE
11. A rupture disc on a recovery vessel for low pressure refrigerants relieves
at:
● A. 10 psig
● B. 15 psig
● C. 20 psig
● D. 25 psig
Answer: B. 15 psig
12. A standard vacuum pump designed for evacuation and dehydration can:
● A. Be used alone for recovery
● B. Only be used as a recovery device in combination with a non-pressurized
container
● C. Never be used for recovery
● D. Replace a recovery machine
Answer: B. Only be used as a recovery device in combination with a
non-pressurized container
1. ______ is the process of removing refrigerant in any condition from a
system and storing it in an external container without necessarily testing or
processing it in any way.
● A. Reclaiming
● B. Recycling
● C. Recovering
● D. Recharging
Answer: C. Recovering
2. _______ refers to the process of cleaning refrigerant by oil separation and
single or multiple passes through filter driers which reduce moisture and
acidity.
● A. Recovering
● B. Recycling
● C. Reclaiming
● D. Recharging
Answer: B. Recycling
3. A compressor heater is used to:
● A. Warm the refrigerant
● B. Prevent freeze-up
● C. Increase compression ratio
● D. Reduce the amount of refrigerant in the lubricating oil
Answer: D. Reduce the amount of refrigerant in the lubricating oil
4. A cylinder with a grey body and yellow top is designed to hold:
● A. New refrigerant
● B. Recovered refrigerant
● C. Nitrogen
● D. Oxygen
,Answer: B. Recovered refrigerant
5. A hydrostatic tube test kit is used to:
● A. Measure pressure
● B. Check for leaks in tubes
● C. Determine if a tube leaks
● D. Test vacuum levels
Answer: C. Determine if a tube leaks
6. A passive system-dependent recovery device for small appliances:
● A. Uses a compressor
● B. Requires electricity
● C. Captures refrigerant in a non-pressurized container
● D. Works only on large systems
Answer: C. Captures refrigerant in a non-pressurized container
7. A reciprocating compressor should not be energized if the:
● A. Suction service valve is closed
● B. Liquid line is open
● C. System is charged
● D. Discharge service valve is closed
Answer: D. Discharge service valve is closed
8. A recovery cylinder which is 1/2 full of recovered R-410A @ 90°F, in the
absence of non-condensables will be pressurized to:
● A. 150 psig
● B. 200 psig
● C. 300 psig
● D. 400 psig
Answer: C. 300 psig
, 9. A recovery cylinder which is 1/2 full of recovered R-22 at normal room
temperature about 75°F, in the absence of non-condensables, will be
pressurized to:
● A. 50 psig
● B. 75 psig
● C. 100 psig
● D. 125 psig
Answer: B. 75 psig
10. A refrigerant that can be used as a direct service drop-in substitute for
R-12 in a small appliance is:
● A. R-134a
● B. R-22
● C. R-410A
● D. NONE
Answer: D. NONE
11. A rupture disc on a recovery vessel for low pressure refrigerants relieves
at:
● A. 10 psig
● B. 15 psig
● C. 20 psig
● D. 25 psig
Answer: B. 15 psig
12. A standard vacuum pump designed for evacuation and dehydration can:
● A. Be used alone for recovery
● B. Only be used as a recovery device in combination with a non-pressurized
container
● C. Never be used for recovery
● D. Replace a recovery machine
Answer: B. Only be used as a recovery device in combination with a
non-pressurized container
