EPA 608 Practice exam type 1,
Questions and answers, rated A
The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is_______. - ✔✔-Restricted to technicians
who are EPA certified and refrigerant recovery
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EPA 608 Practice exam type 1,
Questions and answers, rated A
The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is_______. - ✔✔-Restricted to technicians
who are EPA certified and refrigerant recovery
A small Pliance is defined as a system that is - ✔✔-Manufactured, fully charged, and hermetically sealed
in a factory with a charge of 5 pounds or less
A __________ recovery device can be use for type 1 small appliance applications or type 2 applications if
the total charge is below 15 pounds. - ✔✔-System dependent
You must have a self-contained recovery machine available unless you only work on - ✔✔-Small
appliances
Recovery devices for use with small appliances must be capable of - ✔✔-Recovering 90% of the
refrigerant when the compressor is operating
The hydrocarbon refrigerant approved for retrofit into existing household refrigerators is - ✔✔-None.
Hydrocarbons are not approved for any retrofit applications
New household refrigerators with a charge of less than 57 grams (2 ounces weight) can use any of the
following refrigerants, except. - ✔✔-R-1235yf
And exempt refrigerant is any refrigerant that has a 0 Ozone depletion potential (0 ODP) any global
warming potential (GWP) equal to or lower than carbon dioxide, that is a GWP of _________ or less. -
✔✔-1
What is not a small appliance? - ✔✔-An MVAC-like system that holds 3 pounds of R-22
Any system with a charger less than ________ pounds can you system dependent recovery equipment. -
✔✔-15
Anytime pressurized nitrogen is put into the system, the nitrogen gas - ✔✔-Maybe vented to the
ambient air
When a tank of mixed refrigerant is sent to a reclaimer, they can - ✔✔-Either refuse to except the
refrigerant or charge extra for processing it
A passive system dependent recovery process - ✔✔-Recovered refrigerant in a non-pressurized
container
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
What is the pressure of a storage cylinder of R-404A, that is stored in a room where the temperature is
100°F? - ✔✔-237 psig
Any refrigerant that is vented off the top of the charging cylinder - ✔✔-Must be recovered
Recovery of refrigerant cannot begin if the initial pressure in the system is - ✔✔-0 psig
What is the pressure of the storage cylinder of R-410a, that is stored in a room where the temperature is
100°F? - ✔✔-319 psig
To reach the necessary recovery level, when using a ________, it will most likely be essential to heat and
strike the compressor with a rubber mallet to release any refrigerant. - ✔✔-Passive recovery devices on
a small appliance with a non-operating compressor
You must know the ________ before beginning a refrigerant recovery. - ✔✔-Type of refrigerant that is
in the system
Nitrogen tanks should always be equipped with a ________. - ✔✔-Pressure regulator and pressure relief
valve downstream of the regulator
If a large leak of refrigerant occurs, __________. - ✔✔-Immediately vacate in naturally ventilate the area
A very large refrigerant leak can cause Suffocation because refrigerants - ✔✔-Are heavier than air and
displace oxygen
Always _____________ when connecting or disconnecting refrigeration hoses. - ✔✔-1.) wear safety
eyewear and butyl-lined gloves 2.) verify the hoses are rated for the refrigerant being used 3.) avoid
trapping liquid refrigerant in the hoses
CFC and HCFC refrigerants can decompose to form - ✔✔-Hydrochloric and hydrofluoric acids
Applying heat, with a heat gun, to the compressor; - ✔✔-Can help vaporize any trapped liquid
refrigerant during recovery.
Which HC refrigerant is allowed for use in new domestic small appliances? - ✔✔-R-600a
Technicians who perform sealed system service on small points is must have - ✔✔-Type 1 or universal
certification
Recovering multiple types of refrigerant in the same cylinder; - ✔✔-Will make the reclaimed refrigerants
unreclaimable
Type one certification is required for; - ✔✔-Persons handling refrigerant during maintenance, service, or
repair of small appliances.
Recovery equipment must be - ✔✔-Certified by an EPA approved testing laboratory
When filling a charging cylinder with a regulated refrigerant; - ✔✔-The refrigerant vapor that is vented
off the top of the cylinder must be recovered.
Which of the following is true regarding refrigerant leaks one small appliances? - ✔✔-EPA does not
require repair, but leaks should be repaired whenever possible.
If a strong odor is detected while performing a refrigerant recovery process, - ✔✔-A compressor
burnout has likely occurred.
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