1|Page
EPA 608 UNIVERSAL TEST EXAM|| 2025-2026
QUESTIONS AND 100% ALREADY GRADED A+||
LATEST AND COMPLETE UPDATE WITH VERIFIED
SOLUTIONS|| ASSURED PASS!!!
Which atom of the CFC molecule causes ozone depletion - ANSWER:
chlorine
The ozone layer protects the earth from - ANSWER: ultraviolet
radiation from the sun.
When using with any solvent, cleaner, chemical or refrigerant, you
should review - ANSWER: material safety data sheets.
An award of up to what amount may be paid to a person supplying
information that leads to a penalty against a technician who is
intentionally venting - ANSWER: 10,000
The Montreal Protocol is - ANSWER: a treaty among nations that
controls production of CFCs and HCFCs.
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Which refrigerant is an HCFC - ANSWER: R-123, R-22, R-124
What is one of the most serious results of damage to the ozone layer -
ANSWER:
increases in human skin cancer
Of the refrigerants listed below, which has the lowest ozone depletion
potential (ODP) - ANSWER: R-22
To determine the maximum allowable pressure to use when checking a
system, check - ANSWER: the design pressure on the equipment
nameplate
Ozone depletion potential, or "ODP," is - ANSWER: A measure of the
ability of CFCs and HCFCs to destroy ozone.
An example of an HFC refrigerant is - ANSWER: R-134a
Whenever dry nitrogen from a portable cylinder is connected to a
system, what item is of most importance in consideration of safety -
ANSWER: There is relief in the downstream line from the pressure
regulator.
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During servicing of a refrigeration system containing R-12, the
refrigerant must be - ANSWER: recovered.
Which safety precaution(s) should always be followed - ANSWER:
Never apply an open flame to a refrigerant cylinder; never cut or weld
any refrigerant line when refrigerant is in the line; never use oxygen to
purge lines or to pressurize a system.
In a vapor compression refrigeration system, cooling occurs when -
ANSWER:
refrigerant liquid turns to a vapor.
The evacuation of a system is a method of - ANSWER: dehydration.
Each chlorine atom in the stratosphere can destroy____ozone
molecules -
ANSWER: 100,000
An example of a HFC refrigerant is - ANSWER: R-410A
EPA 608 UNIVERSAL TEST EXAM|| 2025-2026
QUESTIONS AND 100% ALREADY GRADED A+||
LATEST AND COMPLETE UPDATE WITH VERIFIED
SOLUTIONS|| ASSURED PASS!!!
Which atom of the CFC molecule causes ozone depletion - ANSWER:
chlorine
The ozone layer protects the earth from - ANSWER: ultraviolet
radiation from the sun.
When using with any solvent, cleaner, chemical or refrigerant, you
should review - ANSWER: material safety data sheets.
An award of up to what amount may be paid to a person supplying
information that leads to a penalty against a technician who is
intentionally venting - ANSWER: 10,000
The Montreal Protocol is - ANSWER: a treaty among nations that
controls production of CFCs and HCFCs.
,2|Page
Which refrigerant is an HCFC - ANSWER: R-123, R-22, R-124
What is one of the most serious results of damage to the ozone layer -
ANSWER:
increases in human skin cancer
Of the refrigerants listed below, which has the lowest ozone depletion
potential (ODP) - ANSWER: R-22
To determine the maximum allowable pressure to use when checking a
system, check - ANSWER: the design pressure on the equipment
nameplate
Ozone depletion potential, or "ODP," is - ANSWER: A measure of the
ability of CFCs and HCFCs to destroy ozone.
An example of an HFC refrigerant is - ANSWER: R-134a
Whenever dry nitrogen from a portable cylinder is connected to a
system, what item is of most importance in consideration of safety -
ANSWER: There is relief in the downstream line from the pressure
regulator.
, 3|Page
During servicing of a refrigeration system containing R-12, the
refrigerant must be - ANSWER: recovered.
Which safety precaution(s) should always be followed - ANSWER:
Never apply an open flame to a refrigerant cylinder; never cut or weld
any refrigerant line when refrigerant is in the line; never use oxygen to
purge lines or to pressurize a system.
In a vapor compression refrigeration system, cooling occurs when -
ANSWER:
refrigerant liquid turns to a vapor.
The evacuation of a system is a method of - ANSWER: dehydration.
Each chlorine atom in the stratosphere can destroy____ozone
molecules -
ANSWER: 100,000
An example of a HFC refrigerant is - ANSWER: R-410A
