EPA 608 UNIVERSAL 2026/2027
BANK QUESTIONS WITH DETAILED
VERIFIED ANSWERS / EXAM
QUESTIONS WILL COME FROM HERE
(100% CORRECT ANSWERS/ A+
GRADED
these - ANSWER//Hydrochloric and hydrofluoric acids Burning CFCs and
HCFCs can: Answer Create toxic vapors that are harmful to inhale Will
produce phosgene gas Result from cutting or welding pipes containing
residual refrigerant All of these - ANSWER//All of these If refrigerant has been
released, what is the first thing you should do? Answer Locate an exit Locate
a self-contained breathing apparatus Locate a specially contained breathing
apparatus Locate the leak to stop the fill of dangerous refrigerant -
ANSWER//Locate a self-contained breathing apparatus If we cannot find a
SCBA, what should we do? Answer Locate an exit Vacate the area Ventilate
the area All of these - ANSWER//All of these Safety markings used in
appliances with hydrocarbon refrigerants are: Answer Applied by technicians
to warn other technicians Permanently made on the equipment during
manufacturing Have to be put on equipment permanently by technicians All of
these - ANSWER//Permanently made on the equipment during manufacturing
What is the number one cause of refrigerant-related deaths in the HVAC
industry? Answer Heart attacks Refrigerant toxicity overload Fires Oxygen
deprivation - ANSWER//Oxygen deprivation What piece of equipment is
needed on nitrogen tanks when using them to service an appliance? Answer
Refrigerant thermometer Pressure regulator Manual gauge All of these -
ANSWER//Pressure regulator When do we need to use safety eyewear and
butyl-lined gloves? Answer When testing the quality of refrigerant When
moving refrigerant cylinders When connecting and disconnecting hoses
•When taring the refrigerant scale - ANSWER//When connecting and
disconnecting hoses Which of the following are areas that do not need to be
marked when it comes to appliances that contain HCs? Answer Outside the
refrigerator Evaporators Exposed tubing Inside refrigerator door -
ANSWER//Inside refrigerator door Which of the following is needed to protect
your hands from refrigerant burns? Answer Cotton gloves Butyl-lined gloves
Triple layered gloves Any of the above - ANSWER//Butyl-lined gloves How
would you remove moisture from refrigerants in a system? Answer Purge the
condenser Drain the oil separator Reduce water flow to the condenser Use a
filter drier - ANSWER//Use a filter drier What are refrigeration and air-
conditioning compressor heaters used for? Answer To reduce the amount of
, refrigerant in the oil To prevent refrigerant vaporization To reduce the amount
of entrained water inthe receiver To prevent acid pitting - ANSWER//To
reduce the amount of refrigerant in the oil What is a sight glass useful for?
Answer Determining the type of refrigerant Checking for moisture in
refrigerant Providing sub-cooling Determining the type of oil used -
ANSWER//Checking for moisture in the refrigerant What is the easiest way to
check the type of refrigerant used in a 60 ton packaged rooftop unit? Answer
Look at the unit nameplate Use your service gauge set and a PT chart Ask
the owner Measure the condenser pressure - ANSWER//Look at the unit
name plate What is the state of the refrigerant when it's leaving the condenser
coils into a receiver tank? Answer Low Pressure Liquid Low Pressure Vapor
High Pressure Liquid High Pressure Vapor - ANSWER//High pressure liquid
What will backseating a suction shut-off valve close? Answer Suction line and
compressor port Compressor and gauge port Compressor port Gauge port -
ANSWER//gauge port Which of the following components is located just
before the compressor? Answer Receiver Accumulator Condenser coils TEV -
ANSWER//Accumulator Which of the following refrigerants is not used in Type
lI systems? Answer R-407C R-407A R-245fa R-22 - ANSWER//R-245fa
Which of the following refrigerants would be used in a low-pressure appliance?
Answer R-22 R-123 R-410A R-407A - ANSWER//R-123
As environmental technicians, we must be up to date with which type of laws?
- ANSWER//Federal, State, and Local Laws For EPA 608 Universal
Certification, how many questions will you receive? - ANSWER//100 If you
need to get type III certification, what will be on your exam? - ANSWER//50
questions, 25 core and 25 type III questions. What is the passing grade for all
EPA certifications? - ANSWER//70% Once you Pass the EPA exam, the
regulations you learn will never change. - ANSWER//False Do natural events
like volcanic eruptions contribute to chlorine in the stratosphere? -
ANSWER//Yes, but are not the primary source True or False: Ground level
ozone is what absorbs and reflects harmful UV rays from the sun. -
ANSWER//False In which of the following ways does ozone depletion affect
humans? - ANSWER//Increased risk of skin cancer and cataracts Is there
evidence that refrigerants are in the stratosphere? - ANSWER//YES Which of
the following statements is TRUE about chlorine? - ANSWER//A single
chlorine atom can survive in the atmosphere for years. Ozone has __ atoms
of oxygen. - ANSWER//3 The majority of ozone is located in the Troposphere.
t or f? - ANSWER//False How many molecules of ozone can three molecules
of chlorine destroy? - ANSWER//300,000 (100,000 per chlorine molecule)
What is the major function of ozone in the stratosphere? - ANSWER//Absorb
and reflect UV rays from the sun. What is the primary source of chlorine in the
stratosphere? - ANSWER//Emissions of refrigerant chemicals such as CFCs
and HCFCs by humans. What molecule destroys the ozone layer? -
ANSWER//Chlorine Which of the following an effects of ozone depletion? -
ANSWER//Decreasing crop yields Which refrigerant chemicals are
responsible for the destruction of the ozone layer? - ANSWER//CFCs and
HCFCs Who does ozone depletion affect? - ANSWER//people all over the
world After refrigerant is phased out, can a technician still service the
equipment containing that refrigerant? - ANSWER//YES After being phased
out, where can technicians obtain refrigerant to service equipment that
BANK QUESTIONS WITH DETAILED
VERIFIED ANSWERS / EXAM
QUESTIONS WILL COME FROM HERE
(100% CORRECT ANSWERS/ A+
GRADED
these - ANSWER//Hydrochloric and hydrofluoric acids Burning CFCs and
HCFCs can: Answer Create toxic vapors that are harmful to inhale Will
produce phosgene gas Result from cutting or welding pipes containing
residual refrigerant All of these - ANSWER//All of these If refrigerant has been
released, what is the first thing you should do? Answer Locate an exit Locate
a self-contained breathing apparatus Locate a specially contained breathing
apparatus Locate the leak to stop the fill of dangerous refrigerant -
ANSWER//Locate a self-contained breathing apparatus If we cannot find a
SCBA, what should we do? Answer Locate an exit Vacate the area Ventilate
the area All of these - ANSWER//All of these Safety markings used in
appliances with hydrocarbon refrigerants are: Answer Applied by technicians
to warn other technicians Permanently made on the equipment during
manufacturing Have to be put on equipment permanently by technicians All of
these - ANSWER//Permanently made on the equipment during manufacturing
What is the number one cause of refrigerant-related deaths in the HVAC
industry? Answer Heart attacks Refrigerant toxicity overload Fires Oxygen
deprivation - ANSWER//Oxygen deprivation What piece of equipment is
needed on nitrogen tanks when using them to service an appliance? Answer
Refrigerant thermometer Pressure regulator Manual gauge All of these -
ANSWER//Pressure regulator When do we need to use safety eyewear and
butyl-lined gloves? Answer When testing the quality of refrigerant When
moving refrigerant cylinders When connecting and disconnecting hoses
•When taring the refrigerant scale - ANSWER//When connecting and
disconnecting hoses Which of the following are areas that do not need to be
marked when it comes to appliances that contain HCs? Answer Outside the
refrigerator Evaporators Exposed tubing Inside refrigerator door -
ANSWER//Inside refrigerator door Which of the following is needed to protect
your hands from refrigerant burns? Answer Cotton gloves Butyl-lined gloves
Triple layered gloves Any of the above - ANSWER//Butyl-lined gloves How
would you remove moisture from refrigerants in a system? Answer Purge the
condenser Drain the oil separator Reduce water flow to the condenser Use a
filter drier - ANSWER//Use a filter drier What are refrigeration and air-
conditioning compressor heaters used for? Answer To reduce the amount of
, refrigerant in the oil To prevent refrigerant vaporization To reduce the amount
of entrained water inthe receiver To prevent acid pitting - ANSWER//To
reduce the amount of refrigerant in the oil What is a sight glass useful for?
Answer Determining the type of refrigerant Checking for moisture in
refrigerant Providing sub-cooling Determining the type of oil used -
ANSWER//Checking for moisture in the refrigerant What is the easiest way to
check the type of refrigerant used in a 60 ton packaged rooftop unit? Answer
Look at the unit nameplate Use your service gauge set and a PT chart Ask
the owner Measure the condenser pressure - ANSWER//Look at the unit
name plate What is the state of the refrigerant when it's leaving the condenser
coils into a receiver tank? Answer Low Pressure Liquid Low Pressure Vapor
High Pressure Liquid High Pressure Vapor - ANSWER//High pressure liquid
What will backseating a suction shut-off valve close? Answer Suction line and
compressor port Compressor and gauge port Compressor port Gauge port -
ANSWER//gauge port Which of the following components is located just
before the compressor? Answer Receiver Accumulator Condenser coils TEV -
ANSWER//Accumulator Which of the following refrigerants is not used in Type
lI systems? Answer R-407C R-407A R-245fa R-22 - ANSWER//R-245fa
Which of the following refrigerants would be used in a low-pressure appliance?
Answer R-22 R-123 R-410A R-407A - ANSWER//R-123
As environmental technicians, we must be up to date with which type of laws?
- ANSWER//Federal, State, and Local Laws For EPA 608 Universal
Certification, how many questions will you receive? - ANSWER//100 If you
need to get type III certification, what will be on your exam? - ANSWER//50
questions, 25 core and 25 type III questions. What is the passing grade for all
EPA certifications? - ANSWER//70% Once you Pass the EPA exam, the
regulations you learn will never change. - ANSWER//False Do natural events
like volcanic eruptions contribute to chlorine in the stratosphere? -
ANSWER//Yes, but are not the primary source True or False: Ground level
ozone is what absorbs and reflects harmful UV rays from the sun. -
ANSWER//False In which of the following ways does ozone depletion affect
humans? - ANSWER//Increased risk of skin cancer and cataracts Is there
evidence that refrigerants are in the stratosphere? - ANSWER//YES Which of
the following statements is TRUE about chlorine? - ANSWER//A single
chlorine atom can survive in the atmosphere for years. Ozone has __ atoms
of oxygen. - ANSWER//3 The majority of ozone is located in the Troposphere.
t or f? - ANSWER//False How many molecules of ozone can three molecules
of chlorine destroy? - ANSWER//300,000 (100,000 per chlorine molecule)
What is the major function of ozone in the stratosphere? - ANSWER//Absorb
and reflect UV rays from the sun. What is the primary source of chlorine in the
stratosphere? - ANSWER//Emissions of refrigerant chemicals such as CFCs
and HCFCs by humans. What molecule destroys the ozone layer? -
ANSWER//Chlorine Which of the following an effects of ozone depletion? -
ANSWER//Decreasing crop yields Which refrigerant chemicals are
responsible for the destruction of the ozone layer? - ANSWER//CFCs and
HCFCs Who does ozone depletion affect? - ANSWER//people all over the
world After refrigerant is phased out, can a technician still service the
equipment containing that refrigerant? - ANSWER//YES After being phased
out, where can technicians obtain refrigerant to service equipment that
