EPA 608 Certification, EPA 608 EXAM 2025/2026 ACTUAL
COMPLETE REAL EXAM QUESTIONS AND VERIFIED
SOLUTIONS | CORRECT WELL ELABORATED &
DETAILED ANSWERS / ALREADY GRADED A+
|2025 EXAM!!
A passive throttling device comprised of a very small diameter
long tube located upstream of the evaporator that drops the
pressure in the system, causing refrigerant to flash into a two-
phase mixture. It does not actively control the pressure drop to
maintain a prescribed superheat at the exit of the evaporator. -
ANSWER-Capillary Tube
Any device that contains and uses a refrigerant for household
or commercial purposes, including any air conditioner,
refrigerant, chiller, or freezer. EPA interprets this definition to
include all air-conditioning and refrigeration equipment except
units designed and uses exclusively for military purposes. -
ANSWER-Appliance
Refrigerant that have an ozone depletion potential (ODP)
greater than 0.2, and
consist of all chlorofluorocarbons (CFCs). - ANSWER-
Class I Refrigerant
,Refrigerants that have an ozone depletion potential (ODP) of
less than 0.2 and
consist of all hydrochlorofluorocarbons (HCFCs). -
ANSWER-Class II
Refrigerant
Refrigerant appliances used in retail food and cold storage
warehouse sectors. "Retail food" includes the refrigeration
equipment found I. Supermarkets, convenience stores,
restaurants, and other food services establishments. "Cold
storage" includes the equipment used to store meat, produce,
fairly products, and other perishable goods. All of this type of
equipment contains large refrigerant charges, typically more
than 75 pounds. - ANSWER-Commercial Refrigeration
A substance formed by a union of two or more elements in a
definite proportion
by weight. - ANSWER-
Compound
to remove water from the system. - ANSWER-Dehydrate
The evacuation of a system down to a low vacuum, typically
below 500microns,
,with the goal of removing non-condensable gases as well as
evaporating and
removing water from the system. - ANSWER-
Deep vacuum
The temperature at which the non-azeotropic blend first begins
to condense. -
ANSWER-Dew
Point
The process leading to and including and of the following - the
discharging, depositing, dumping, or placing of any discarded
appliance into land or water. - the disassembly of any appliance
for discharging, depositing, dumping, or placing of it's
discarded component parts into or on any land or water. - The
disassembly of any appliance for reuse of its components
parts. – ANSWER-Disposal
An electronic vacuum gauge that displays the vacuum level
directly in microns
and is the only accurate field method to determine the
evacuation level of a
deep vacuum. - ANSWER-Electronic Vacuum Gauge or
Micron Gauge
, The process of extracting any air, non-condensable gases, or
water from the
system and thereby reducing the pressure to some value
below 0 psig. -
ANSWER-
Evacuation
The abbreviation for an Electronic Expansion Valve, a throttling
device located upstream of the evaporator, that actively
controls the pressure drop ( via electrical feedback from a
temperature sensor) to maintain a prescribed superheat at the
exit of the evaporator. - ANSWER-EXV
The separation of a liquid mixture into a separate parts by
the preferential
evaporation of the more volatile component. - ANSWER-
Fractionation
A halogenated hydrocarbon containing one or more of the
three halogens:
fluorine, chlorine, and bromine. Hydrogen may or may
not be present. -
ANSWER-
Halocarbon
COMPLETE REAL EXAM QUESTIONS AND VERIFIED
SOLUTIONS | CORRECT WELL ELABORATED &
DETAILED ANSWERS / ALREADY GRADED A+
|2025 EXAM!!
A passive throttling device comprised of a very small diameter
long tube located upstream of the evaporator that drops the
pressure in the system, causing refrigerant to flash into a two-
phase mixture. It does not actively control the pressure drop to
maintain a prescribed superheat at the exit of the evaporator. -
ANSWER-Capillary Tube
Any device that contains and uses a refrigerant for household
or commercial purposes, including any air conditioner,
refrigerant, chiller, or freezer. EPA interprets this definition to
include all air-conditioning and refrigeration equipment except
units designed and uses exclusively for military purposes. -
ANSWER-Appliance
Refrigerant that have an ozone depletion potential (ODP)
greater than 0.2, and
consist of all chlorofluorocarbons (CFCs). - ANSWER-
Class I Refrigerant
,Refrigerants that have an ozone depletion potential (ODP) of
less than 0.2 and
consist of all hydrochlorofluorocarbons (HCFCs). -
ANSWER-Class II
Refrigerant
Refrigerant appliances used in retail food and cold storage
warehouse sectors. "Retail food" includes the refrigeration
equipment found I. Supermarkets, convenience stores,
restaurants, and other food services establishments. "Cold
storage" includes the equipment used to store meat, produce,
fairly products, and other perishable goods. All of this type of
equipment contains large refrigerant charges, typically more
than 75 pounds. - ANSWER-Commercial Refrigeration
A substance formed by a union of two or more elements in a
definite proportion
by weight. - ANSWER-
Compound
to remove water from the system. - ANSWER-Dehydrate
The evacuation of a system down to a low vacuum, typically
below 500microns,
,with the goal of removing non-condensable gases as well as
evaporating and
removing water from the system. - ANSWER-
Deep vacuum
The temperature at which the non-azeotropic blend first begins
to condense. -
ANSWER-Dew
Point
The process leading to and including and of the following - the
discharging, depositing, dumping, or placing of any discarded
appliance into land or water. - the disassembly of any appliance
for discharging, depositing, dumping, or placing of it's
discarded component parts into or on any land or water. - The
disassembly of any appliance for reuse of its components
parts. – ANSWER-Disposal
An electronic vacuum gauge that displays the vacuum level
directly in microns
and is the only accurate field method to determine the
evacuation level of a
deep vacuum. - ANSWER-Electronic Vacuum Gauge or
Micron Gauge
, The process of extracting any air, non-condensable gases, or
water from the
system and thereby reducing the pressure to some value
below 0 psig. -
ANSWER-
Evacuation
The abbreviation for an Electronic Expansion Valve, a throttling
device located upstream of the evaporator, that actively
controls the pressure drop ( via electrical feedback from a
temperature sensor) to maintain a prescribed superheat at the
exit of the evaporator. - ANSWER-EXV
The separation of a liquid mixture into a separate parts by
the preferential
evaporation of the more volatile component. - ANSWER-
Fractionation
A halogenated hydrocarbon containing one or more of the
three halogens:
fluorine, chlorine, and bromine. Hydrogen may or may
not be present. -
ANSWER-
Halocarbon
