EPA 608 universal, EPA 608 Certification, 608
PRACTICE QUESTIONS COMPLETE & ACCURATE EXAM
APPROVED QUESTIONS AND CORRECT VERIFIED
SOLUTIONS (100% CORRECT VERIFIED ANSWERS)
CURRENTLY UPDATED VERSION 2026 EDITION
|GUARANTEED PASS
Which of the following statements would be considered good
service practices for conserving refrigerant? - recover or
recycle refrigerant; keep systems tight; find and repair leaks
Under the EPA "safe disposal requirements", the person responsible
for making sure that the refrigerant has been removed from
household
refrigerators before they are disposed of is the: - final person in
the disposal chain
,Which refrigerant listed below is a "low-pressure refrigerant" under
EPA's refrigerant recycling regulations? - R-123
When moisture exists in an operating system, which of the
following is the most likely to occur? - Acid will form
Which of the following is a "very high-pressure refrigerant" under
EPA's refrigerant recycling regulations? - R-13
When using nitrogen to pressurize a system, you should: - only
charge with nitrogen vapor.
Of the refrigerants listed below, which has the lowest ozone
depletion potential? - R-134a
When dealing with small systems, how many different refrigerants
may be recovered into the same cylinder? - ONLY ONE
When operating refrigerant recovery or recycling equipment, the
following precautions should always be followed - wear safety
glasses; wear protective gloves; follow all safety precautions for
the equipment
Of the refrigerants listed below, which types of refrigerants will
not damage stratospheric ozone? - HFCs
When evacuating a system, the hoses should b: - as short in length
and as large in diameter as possible.
Refrigerant leaves the condenser of an operating system as a: - high
pressure liquid.
If corrosion is found within the body of a relief valve, the valve
must be: - replaced.
,The Clean Air Act: - sets a schedule for the phase out of CFC/HCFC
production; prohibits venting of refrigerants; authorizes the EPA to
set standards for recover of refrigerants.
Measuring the system's final vacuum is always done with: - the
system isolated and the vacuum pump off.
A refillable refrigerant cylinder must never be filled to more
than_________ of its capacity by weight: - 80%
Of the refrigerants listed below, which refrigerant type have the
highest ozone depletion potential? - CFCs
This chemical was found in the upper stratosphere and that
indicates that the ozone layer is being destroyed. - chlorine
monoxide
What factor(s) affects the speed of evacuation? - the size of the
equipment being evacuated; the ambient temperature; the amount
of moisture in the system
HCFC refrigerants contain: - hydrogen, chlorine, fluorine, carbon
When a system will not hold vacuum after is has been evacuated,
then: - they system may be leaking.
All recovery equipment currently being made is required to have:
- an EPA approved certification label.
The color code for approved refrigerant recovery cylinders
is______. - yellow tops and gray bodies
When can you use a disposable cylinder to recover refrigerant? -
never
, Which of the following is a "high-pressure refrigerant" under EPA's
refrigerant recycling regulations? - R-22
After refrigerant liquid transfer between recovery unit and the
system
being emptied, you need to avoid trapping: - liquid refrigerant
between service valves.
You can determine safe pressure for leak testing a system
from the: - low-side test-pressure data-plate value.
If a technician has a system where some R-502 was added to an R-
22 system. The technician should: - recover all the refrigerant into a
separate tank.
Ozone in the stratosphere above the earth consists of: - molecules
of 3 oxygen atoms.
The size (capacity) of the vacuum pump and the size of the suction
line used will determine: - the length of dehydration time.
According to the EPA, when dealing with customer complaints
regarding additional costs due to refrigerant recovery efforts,
the technician
should: - explain the refrigerant recovery is necessary to protect
human health and the environment; explain that refrigerant
recovery is required by the Federal(and in some cases state and
local)laws; inform the
customer that professional service personnel are duty bound
to follow the law and to protect the environment
State and local governments can make state laws that: - follow the
Clean Air Act/EPA regulations; contain stricter regulations than
the Clean Air Act/EPA regulations.
PRACTICE QUESTIONS COMPLETE & ACCURATE EXAM
APPROVED QUESTIONS AND CORRECT VERIFIED
SOLUTIONS (100% CORRECT VERIFIED ANSWERS)
CURRENTLY UPDATED VERSION 2026 EDITION
|GUARANTEED PASS
Which of the following statements would be considered good
service practices for conserving refrigerant? - recover or
recycle refrigerant; keep systems tight; find and repair leaks
Under the EPA "safe disposal requirements", the person responsible
for making sure that the refrigerant has been removed from
household
refrigerators before they are disposed of is the: - final person in
the disposal chain
,Which refrigerant listed below is a "low-pressure refrigerant" under
EPA's refrigerant recycling regulations? - R-123
When moisture exists in an operating system, which of the
following is the most likely to occur? - Acid will form
Which of the following is a "very high-pressure refrigerant" under
EPA's refrigerant recycling regulations? - R-13
When using nitrogen to pressurize a system, you should: - only
charge with nitrogen vapor.
Of the refrigerants listed below, which has the lowest ozone
depletion potential? - R-134a
When dealing with small systems, how many different refrigerants
may be recovered into the same cylinder? - ONLY ONE
When operating refrigerant recovery or recycling equipment, the
following precautions should always be followed - wear safety
glasses; wear protective gloves; follow all safety precautions for
the equipment
Of the refrigerants listed below, which types of refrigerants will
not damage stratospheric ozone? - HFCs
When evacuating a system, the hoses should b: - as short in length
and as large in diameter as possible.
Refrigerant leaves the condenser of an operating system as a: - high
pressure liquid.
If corrosion is found within the body of a relief valve, the valve
must be: - replaced.
,The Clean Air Act: - sets a schedule for the phase out of CFC/HCFC
production; prohibits venting of refrigerants; authorizes the EPA to
set standards for recover of refrigerants.
Measuring the system's final vacuum is always done with: - the
system isolated and the vacuum pump off.
A refillable refrigerant cylinder must never be filled to more
than_________ of its capacity by weight: - 80%
Of the refrigerants listed below, which refrigerant type have the
highest ozone depletion potential? - CFCs
This chemical was found in the upper stratosphere and that
indicates that the ozone layer is being destroyed. - chlorine
monoxide
What factor(s) affects the speed of evacuation? - the size of the
equipment being evacuated; the ambient temperature; the amount
of moisture in the system
HCFC refrigerants contain: - hydrogen, chlorine, fluorine, carbon
When a system will not hold vacuum after is has been evacuated,
then: - they system may be leaking.
All recovery equipment currently being made is required to have:
- an EPA approved certification label.
The color code for approved refrigerant recovery cylinders
is______. - yellow tops and gray bodies
When can you use a disposable cylinder to recover refrigerant? -
never
, Which of the following is a "high-pressure refrigerant" under EPA's
refrigerant recycling regulations? - R-22
After refrigerant liquid transfer between recovery unit and the
system
being emptied, you need to avoid trapping: - liquid refrigerant
between service valves.
You can determine safe pressure for leak testing a system
from the: - low-side test-pressure data-plate value.
If a technician has a system where some R-502 was added to an R-
22 system. The technician should: - recover all the refrigerant into a
separate tank.
Ozone in the stratosphere above the earth consists of: - molecules
of 3 oxygen atoms.
The size (capacity) of the vacuum pump and the size of the suction
line used will determine: - the length of dehydration time.
According to the EPA, when dealing with customer complaints
regarding additional costs due to refrigerant recovery efforts,
the technician
should: - explain the refrigerant recovery is necessary to protect
human health and the environment; explain that refrigerant
recovery is required by the Federal(and in some cases state and
local)laws; inform the
customer that professional service personnel are duty bound
to follow the law and to protect the environment
State and local governments can make state laws that: - follow the
Clean Air Act/EPA regulations; contain stricter regulations than
the Clean Air Act/EPA regulations.
