EPA 608 Certification, EPA 608 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
December 31, 1995 - CORRECT ANSWER What date were CFC's phased out of production?
Persons who maintain, service, repair, or dispose of small appliances (containing 5 pounds of
refrigerant (or less). - CORRECT ANSWER What is EPA 608 Type I certification?
Persons who maintain, service, repair, or dispose of high and very high pressure appliances.
Except small appliances and motor vehicle air conditioning systems. - CORRECT
ANSWER What is EPA 608 Type II certification?
Persons who maintain, service, repair, or dispose of low pressure appliances. - CORRECT
ANSWER What is EPA 608 Type III certification?
Persons who maintain, service, repair, or dispose of both low and high pressure equipment, as
well as appliances. - CORRECT ANSWER What is EPA 608 Universal certification?
HydroChloroFluoroCarbons - CORRECT ANSWER HCFC's
Commonly known as HCFC's, they are a group of man-made compunds containing hydrogen,
chlorine, fluorine, and carbon. - CORRECT ANSWER What are
HydroChloroFluoroCarbons?
80% - CORRECT ANSWER A recovery cylinder must not be filled more than ___ % of it's
capacity by weight?
Up-right with proper DOT classification tags. - CORRECT ANSWER How should refrigerant
cylinders be shipped?
,Polyolester - CORRECT ANSWER What oil MUST be used with ALL HFC's for
HVAC/Refrigeration but will also work with CFC's and HCFC's.
Trillion - CORRECT ANSWER HCFC's have very low atmospheric concentrations measured
in parts per?
15% - CORRECT ANSWER All cooling systems containing more than 50 lbs. of refrigerant
must be repaired when the annual leak rate exceeds___?
All CFC's - CORRECT ANSWER Mineral Oils are used with?
HCFC's (Will also work with CFC's) - CORRECT ANSWER Alkebenzene is used alone or as
an additive for?
Polyolester - CORRECT ANSWER POE
A small appliance that is manufactured, charged, and hermetically sealed in a factory with 5 lbs.
of refrigerant or less. - CORRECT ANSWER What is the definition of a Type I Appliance?
High pressure or very high pressure appliances except for small appliances and motor vehicle air
conditioning. Refrigeration systems containing more than 5 Lbs. of high or very high pressure
refrigerants. - CORRECT ANSWER What is the definition of a Type II Appliance?
Low pressure equipment like low pressure chillers. - CORRECT ANSWER What is the
definition of a Type III Appliance?
1-399 and 600 and above. - CORRECT ANSWER All refrigerants are assumed to be a single
chemical if they are numbered what?
,A mixture of two or more liquids in such a ratio that it's composition cannot be changed by
vaporizing it. - CORRECT ANSWER What is an Azeotrope?
500 to 599 - CORRECT ANSWER Azeotrope's are numbered what?
When the refrigerant leaks, it leaks out in different rates due to the different pressures. -
CORRECT ANSWER What is fractionation?
When the temperature of the vaporizing refrigerant changes, even though the pressure remains
the same. - CORRECT ANSWER What is Temperature Glide?
Self-Contained and System-Dependent. - CORRECT ANSWER What are the two basic types
of recovery devices?
15 Lbs of refrigerant or less - CORRECT ANSWER System-Dependent devices may only be
used on appliances containing how much refrigerant?
A refrigerant label. - CORRECT ANSWER What MUST be placed on a refrigerant cylinder
being returned for reclaiming.
Trapping liquid refrigerant between the service valves. - CORRECT ANSWER After
completing the transfer of liquid refrigerant between a recovery unit and a refrigeration system,
you should guard against what?
Charge through a pressure regulator. - CORRECT ANSWER When pressurizing a system
with nitrogen, you should always?
Recover, Recycle, and Reclaim. - CORRECT ANSWER What are the three "R's"?
To remove refrigerant in any condition from a system and store it in an external approved
container. - CORRECT ANSWER In relation to the three "R's" what is Recover?
, To clean refrigerant for reuse by seperating the oil from the refrigerant and removing moisture
from the refrigerant by passing it through one or more filter dryers. - CORRECT ANSWER In
relation to the three "R's" what is Recycle?
It cannot be re-sold but it can be re-used. - CORRECT ANSWER Can Recycled refrigerant be
resold?
To process refrigerant to a level equal to new (virgin) product specifications as determined by
chemical analysis. - CORRECT ANSWER In relation to the three "R's" what is Reclaim?
Yes, but must meet the standard set forth in ARI 700 before it can be resold. - CORRECT
ANSWER Can Reclaimed refrigerant be resold?
Chlorine Monoxide (CLO) - CORRECT ANSWER What chemical has been found in the
stratosphere indicating ozone depletion?
1.Household refrigerators
2.Household freezers
3.Room air conditioners
4.Water Coolers
5.Drinking fountains - CORRECT ANSWER What are 5 Type I appliances?
1.Walk-in coolers
2.Walk-in freezers
3.Reach-in refrigerators
4.Reach-in freezers
5.Residential & Commercial comfort cooling systems
6.Ice machines - CORRECT ANSWER What are 6 Type II appliances?
ACTUAL Exam Questions and CORRECT
Answers
December 31, 1995 - CORRECT ANSWER What date were CFC's phased out of production?
Persons who maintain, service, repair, or dispose of small appliances (containing 5 pounds of
refrigerant (or less). - CORRECT ANSWER What is EPA 608 Type I certification?
Persons who maintain, service, repair, or dispose of high and very high pressure appliances.
Except small appliances and motor vehicle air conditioning systems. - CORRECT
ANSWER What is EPA 608 Type II certification?
Persons who maintain, service, repair, or dispose of low pressure appliances. - CORRECT
ANSWER What is EPA 608 Type III certification?
Persons who maintain, service, repair, or dispose of both low and high pressure equipment, as
well as appliances. - CORRECT ANSWER What is EPA 608 Universal certification?
HydroChloroFluoroCarbons - CORRECT ANSWER HCFC's
Commonly known as HCFC's, they are a group of man-made compunds containing hydrogen,
chlorine, fluorine, and carbon. - CORRECT ANSWER What are
HydroChloroFluoroCarbons?
80% - CORRECT ANSWER A recovery cylinder must not be filled more than ___ % of it's
capacity by weight?
Up-right with proper DOT classification tags. - CORRECT ANSWER How should refrigerant
cylinders be shipped?
,Polyolester - CORRECT ANSWER What oil MUST be used with ALL HFC's for
HVAC/Refrigeration but will also work with CFC's and HCFC's.
Trillion - CORRECT ANSWER HCFC's have very low atmospheric concentrations measured
in parts per?
15% - CORRECT ANSWER All cooling systems containing more than 50 lbs. of refrigerant
must be repaired when the annual leak rate exceeds___?
All CFC's - CORRECT ANSWER Mineral Oils are used with?
HCFC's (Will also work with CFC's) - CORRECT ANSWER Alkebenzene is used alone or as
an additive for?
Polyolester - CORRECT ANSWER POE
A small appliance that is manufactured, charged, and hermetically sealed in a factory with 5 lbs.
of refrigerant or less. - CORRECT ANSWER What is the definition of a Type I Appliance?
High pressure or very high pressure appliances except for small appliances and motor vehicle air
conditioning. Refrigeration systems containing more than 5 Lbs. of high or very high pressure
refrigerants. - CORRECT ANSWER What is the definition of a Type II Appliance?
Low pressure equipment like low pressure chillers. - CORRECT ANSWER What is the
definition of a Type III Appliance?
1-399 and 600 and above. - CORRECT ANSWER All refrigerants are assumed to be a single
chemical if they are numbered what?
,A mixture of two or more liquids in such a ratio that it's composition cannot be changed by
vaporizing it. - CORRECT ANSWER What is an Azeotrope?
500 to 599 - CORRECT ANSWER Azeotrope's are numbered what?
When the refrigerant leaks, it leaks out in different rates due to the different pressures. -
CORRECT ANSWER What is fractionation?
When the temperature of the vaporizing refrigerant changes, even though the pressure remains
the same. - CORRECT ANSWER What is Temperature Glide?
Self-Contained and System-Dependent. - CORRECT ANSWER What are the two basic types
of recovery devices?
15 Lbs of refrigerant or less - CORRECT ANSWER System-Dependent devices may only be
used on appliances containing how much refrigerant?
A refrigerant label. - CORRECT ANSWER What MUST be placed on a refrigerant cylinder
being returned for reclaiming.
Trapping liquid refrigerant between the service valves. - CORRECT ANSWER After
completing the transfer of liquid refrigerant between a recovery unit and a refrigeration system,
you should guard against what?
Charge through a pressure regulator. - CORRECT ANSWER When pressurizing a system
with nitrogen, you should always?
Recover, Recycle, and Reclaim. - CORRECT ANSWER What are the three "R's"?
To remove refrigerant in any condition from a system and store it in an external approved
container. - CORRECT ANSWER In relation to the three "R's" what is Recover?
, To clean refrigerant for reuse by seperating the oil from the refrigerant and removing moisture
from the refrigerant by passing it through one or more filter dryers. - CORRECT ANSWER In
relation to the three "R's" what is Recycle?
It cannot be re-sold but it can be re-used. - CORRECT ANSWER Can Recycled refrigerant be
resold?
To process refrigerant to a level equal to new (virgin) product specifications as determined by
chemical analysis. - CORRECT ANSWER In relation to the three "R's" what is Reclaim?
Yes, but must meet the standard set forth in ARI 700 before it can be resold. - CORRECT
ANSWER Can Reclaimed refrigerant be resold?
Chlorine Monoxide (CLO) - CORRECT ANSWER What chemical has been found in the
stratosphere indicating ozone depletion?
1.Household refrigerators
2.Household freezers
3.Room air conditioners
4.Water Coolers
5.Drinking fountains - CORRECT ANSWER What are 5 Type I appliances?
1.Walk-in coolers
2.Walk-in freezers
3.Reach-in refrigerators
4.Reach-in freezers
5.Residential & Commercial comfort cooling systems
6.Ice machines - CORRECT ANSWER What are 6 Type II appliances?
