EPA 608 QUESTIONS WITH ACCURATE REFRIGERANT
MANAGEMENT EXAM 2025 ,139 SOLUTIONS
,EPA 608 REFRIGERANT MANAGEMENT EXAM 2025
,139 QUESTIONS WITH ACCURATE SOLUTIONS
1. Explain the significance of attaching DOT classification tags to cylinders
containing used refrigerant during transportation.
It helps in identifying the refrigerant type for recycling purposes.
It ensures compliance with safety regulations and informs
handlers of the contents.
It is a requirement only for new refrigerants, not used ones.
It is only necessary if the refrigerant is hazardous.
2. What is the primary function of the receiver in a refrigeration system?
To compress the refrigerant gas
To store the refrigerant before it enters the expansion device
To evaporate the refrigerant
To condense the refrigerant vapor
3. Why are recovery levels necessary?
Complete evacuation is not practical.
It is not possible to measure system refrigerant amounts.
Empty systems are environmentally damaging.
Vacuum pumps are faulty and unreliable.
4. Equipment which is used to recover CFC, HCFC, and HFC refrigerant from
small appliances for the purpose of disposal must meet what standard?
Recover 95% of the refrigerant whether or not the compressor is
operative.
,Recover 80% of the refrigerant with an inoperative compressor
and 90% of the refrigerant with an operative compressor.
, Recover 90% of the refrigerant with an inoperative compressor and
80% of the refrigerant with an operative compressor.
Recover 75% of the refrigerant within 5 minutes.
5. You must calculate the leak rate __ _.
following a retrofit or new install
every time you top off a system
every time you top off a system that has a normal charge of 60
pounds or more
every time you top off a comfort cooling system
6. When does ASHRAE Standard 15-2013 require that each machinery room
activate an alarm and mechanical ventillation?
When the TVL-TWA(Threshold Limit Value - Time Weighted
Average) is exceeded.
When the UTL (Upper Threshold Limit) is exceeded.
When the COP(Coefficient of Performance) drops 5% of the original
value.
When the EEL(Emergency Exposure Limit) is exceeded by 10%.
7. Which refrigerant is an HFO?
R-1234yf
R-22
R-12
R134a
8. Under what code group of ASHRAE Standard 34 does R-123 fall?
A1
A2
MANAGEMENT EXAM 2025 ,139 SOLUTIONS
,EPA 608 REFRIGERANT MANAGEMENT EXAM 2025
,139 QUESTIONS WITH ACCURATE SOLUTIONS
1. Explain the significance of attaching DOT classification tags to cylinders
containing used refrigerant during transportation.
It helps in identifying the refrigerant type for recycling purposes.
It ensures compliance with safety regulations and informs
handlers of the contents.
It is a requirement only for new refrigerants, not used ones.
It is only necessary if the refrigerant is hazardous.
2. What is the primary function of the receiver in a refrigeration system?
To compress the refrigerant gas
To store the refrigerant before it enters the expansion device
To evaporate the refrigerant
To condense the refrigerant vapor
3. Why are recovery levels necessary?
Complete evacuation is not practical.
It is not possible to measure system refrigerant amounts.
Empty systems are environmentally damaging.
Vacuum pumps are faulty and unreliable.
4. Equipment which is used to recover CFC, HCFC, and HFC refrigerant from
small appliances for the purpose of disposal must meet what standard?
Recover 95% of the refrigerant whether or not the compressor is
operative.
,Recover 80% of the refrigerant with an inoperative compressor
and 90% of the refrigerant with an operative compressor.
, Recover 90% of the refrigerant with an inoperative compressor and
80% of the refrigerant with an operative compressor.
Recover 75% of the refrigerant within 5 minutes.
5. You must calculate the leak rate __ _.
following a retrofit or new install
every time you top off a system
every time you top off a system that has a normal charge of 60
pounds or more
every time you top off a comfort cooling system
6. When does ASHRAE Standard 15-2013 require that each machinery room
activate an alarm and mechanical ventillation?
When the TVL-TWA(Threshold Limit Value - Time Weighted
Average) is exceeded.
When the UTL (Upper Threshold Limit) is exceeded.
When the COP(Coefficient of Performance) drops 5% of the original
value.
When the EEL(Emergency Exposure Limit) is exceeded by 10%.
7. Which refrigerant is an HFO?
R-1234yf
R-22
R-12
R134a
8. Under what code group of ASHRAE Standard 34 does R-123 fall?
A1
A2
