EPA 608 Exam Test Questions With
Revised Correct Answers
BEST UPDATED COMBINED SET!!
The molecule found in CFCs and HCFCs that depletes ozone is -
ANSWER Chlorine
A single chlorine atom can destroy how many ozone molecules
- ANSWER 100,000
Silicone elastomers, for use in seals and gaskets, are not
compatible with which refrigerants - ANSWER HFOs
Reusable refrigerant containers under high-pressure must be
hydrostatically tested how often - ANSWER 5 years
HCFCs contain - ANSWER Hydrogen, fluorine, chlorine and
carbon
, To process refrigerant to a level equal to new (virgin) product
specifications as determined by chemical analysis defines -
ANSWER Reclaiming
Crop loss, eye disease, and skin cancer have been attributed to
- ANSWER Depletion of stratospheric ozone
Before shipping any used refrigerant cylinders check that the
cylinder meets what standards - ANSWER Department of
transportation
The compressor - ANSWER Changes a low-pressure vapor
to a high-pressure vapor
The condenser - ANSWER Changes a high-pressure vapor
to a high-pressure liquid
A refrigerant cylinder designed to hold recovered refrigerant
has a - ANSWER Gray body and yellow top
An ozone molecule contains - ANSWER Three oxygen
atoms
,Which type of refrigerant contains no chlorine - ANSWER
HFCs
Refrigeration technicians who violate the clean air act can -
ANSWER All of the above
After 1995 any supplies of CFC refrigerant to service existing
units in the USA can only come from - ANSWER Recovery
and recycling
Refrigerant that is recovered can be returned to - ANSWER
The same system or other systems owned by the same person
without restriction
Refrigerant cannot be called "reclaimed" unless it - ANSWER
Has been chemically analyzed and the refrigerant meets the
ARI-700 purity standard
The EPA can require a technician to demonstrate their ability
to perform proper procedures for recovering and recycling
refrigerant. Failure to demonstrate competency can result in -
ANSWER Revocation of the technician's certification
, What characteristic(s) of CFCs make them more likely to reach
the stratosphere than most other compounds containing
chlorine - ANSWER Refrigerant that contain chlorine but
not hydrogen are so stable that they do not break down in the
lower atmosphere after being released. The chlorine or
bromine reacts with Ozone causing it to change back to oxygen,
thus destroying the ozone layer
A system is considered dehydrated when - ANSWER The
vacuum indicator shows you have reached and held the
required finished vacuum
Disposable refrigerant containers are used for ______
refrigerant - ANSWER Virgin
Which refrigerant is an HCFC - ANSWER R-124
What statement is true about an azeotropic refrigerant
mixture - ANSWER It is a mixture that acts like a single
component refrigerant over its entire range
Revised Correct Answers
BEST UPDATED COMBINED SET!!
The molecule found in CFCs and HCFCs that depletes ozone is -
ANSWER Chlorine
A single chlorine atom can destroy how many ozone molecules
- ANSWER 100,000
Silicone elastomers, for use in seals and gaskets, are not
compatible with which refrigerants - ANSWER HFOs
Reusable refrigerant containers under high-pressure must be
hydrostatically tested how often - ANSWER 5 years
HCFCs contain - ANSWER Hydrogen, fluorine, chlorine and
carbon
, To process refrigerant to a level equal to new (virgin) product
specifications as determined by chemical analysis defines -
ANSWER Reclaiming
Crop loss, eye disease, and skin cancer have been attributed to
- ANSWER Depletion of stratospheric ozone
Before shipping any used refrigerant cylinders check that the
cylinder meets what standards - ANSWER Department of
transportation
The compressor - ANSWER Changes a low-pressure vapor
to a high-pressure vapor
The condenser - ANSWER Changes a high-pressure vapor
to a high-pressure liquid
A refrigerant cylinder designed to hold recovered refrigerant
has a - ANSWER Gray body and yellow top
An ozone molecule contains - ANSWER Three oxygen
atoms
,Which type of refrigerant contains no chlorine - ANSWER
HFCs
Refrigeration technicians who violate the clean air act can -
ANSWER All of the above
After 1995 any supplies of CFC refrigerant to service existing
units in the USA can only come from - ANSWER Recovery
and recycling
Refrigerant that is recovered can be returned to - ANSWER
The same system or other systems owned by the same person
without restriction
Refrigerant cannot be called "reclaimed" unless it - ANSWER
Has been chemically analyzed and the refrigerant meets the
ARI-700 purity standard
The EPA can require a technician to demonstrate their ability
to perform proper procedures for recovering and recycling
refrigerant. Failure to demonstrate competency can result in -
ANSWER Revocation of the technician's certification
, What characteristic(s) of CFCs make them more likely to reach
the stratosphere than most other compounds containing
chlorine - ANSWER Refrigerant that contain chlorine but
not hydrogen are so stable that they do not break down in the
lower atmosphere after being released. The chlorine or
bromine reacts with Ozone causing it to change back to oxygen,
thus destroying the ozone layer
A system is considered dehydrated when - ANSWER The
vacuum indicator shows you have reached and held the
required finished vacuum
Disposable refrigerant containers are used for ______
refrigerant - ANSWER Virgin
Which refrigerant is an HCFC - ANSWER R-124
What statement is true about an azeotropic refrigerant
mixture - ANSWER It is a mixture that acts like a single
component refrigerant over its entire range
