EPA 608 Certification Exam Questions and
Answers Verified by Experts
When recovering refrigerant from small appliances you must recover at least 80% of the
refrigerant with an inoperative compressor and 90% of the refrigerant with an operative
compressor
The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is _ restricted to
technicians who are EPA certified in refrigerant recovery
a process stub is a_ straight piece of tubing that is entered using a piercing access valve
Small appliances requires a_ or Universal certification Type 1
If a recovery cylinder is suspected to be contaminated, measure the _ pressure of the
refrigerant in the cylinder
You must know the _ before beginning a refrigerant recovery. type of refrigerant that is in
the system
,when installing an access fitting _ the fitting should be verified as leak free before
beginning any recovery to avoid drawing air into the recovery tank
A passive system-dependent recovery device for small appliances: uses a non pressurized
container
when recovering refrigerant using a passive recovery system and the system has an inoperative
compressor it is helpful to heat and strike the compressor with a rubber mallet to release
any refrigerant trapped in and under the compressor oil
what requires accessing both the high and low side of the system for refrigerant recovery when
using a passive recovery process when the compressor does not run
What is the pressure of a storage cylinder of R-134a that is stored in a room where the
temperature is 100 F 124 psig
Recovery of refrigerant cannot begin if the initial pressure of the system is _ 0 psig
, What maintenance practice should be performed on a regular basis Change the vacuum
pump oil, and check the recovery equipment and manifold hose set for leaks
Which refrigerants can be mixed in a system Refrigerants cannot be mixed
Which of the following is required by the EPA when attaching a gauge set Self sealing
valves, or manual hand valves
Always look for oil contamination when recovering refrigerant because contaminated oil
indicates the system will need to be flushed
Nitrogen tanks should always be equipped with a _ pressure regulator and pressure relief
valve downstream of the regulator
CFC and HCFC refrigerants can decompose to form _ Hydrochloric and hydrofluoric
acids
at high temperatures, CFC and HCFC refrigerants can decompose into phosgene gas
Answers Verified by Experts
When recovering refrigerant from small appliances you must recover at least 80% of the
refrigerant with an inoperative compressor and 90% of the refrigerant with an operative
compressor
The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is _ restricted to
technicians who are EPA certified in refrigerant recovery
a process stub is a_ straight piece of tubing that is entered using a piercing access valve
Small appliances requires a_ or Universal certification Type 1
If a recovery cylinder is suspected to be contaminated, measure the _ pressure of the
refrigerant in the cylinder
You must know the _ before beginning a refrigerant recovery. type of refrigerant that is in
the system
,when installing an access fitting _ the fitting should be verified as leak free before
beginning any recovery to avoid drawing air into the recovery tank
A passive system-dependent recovery device for small appliances: uses a non pressurized
container
when recovering refrigerant using a passive recovery system and the system has an inoperative
compressor it is helpful to heat and strike the compressor with a rubber mallet to release
any refrigerant trapped in and under the compressor oil
what requires accessing both the high and low side of the system for refrigerant recovery when
using a passive recovery process when the compressor does not run
What is the pressure of a storage cylinder of R-134a that is stored in a room where the
temperature is 100 F 124 psig
Recovery of refrigerant cannot begin if the initial pressure of the system is _ 0 psig
, What maintenance practice should be performed on a regular basis Change the vacuum
pump oil, and check the recovery equipment and manifold hose set for leaks
Which refrigerants can be mixed in a system Refrigerants cannot be mixed
Which of the following is required by the EPA when attaching a gauge set Self sealing
valves, or manual hand valves
Always look for oil contamination when recovering refrigerant because contaminated oil
indicates the system will need to be flushed
Nitrogen tanks should always be equipped with a _ pressure regulator and pressure relief
valve downstream of the regulator
CFC and HCFC refrigerants can decompose to form _ Hydrochloric and hydrofluoric
acids
at high temperatures, CFC and HCFC refrigerants can decompose into phosgene gas
