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EPA 608 Exam 2023 with 100% c0rrect answers(TYPE II)
[Show more]EPA 608 Exam 2023 with 100% c0rrect answers(TYPE II)
[Show more]What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? 
November 14, 1994 
 
 
 
Section 608 of the Federal Clean Air Act requires technicians to what? 
Recover all refrigerants. 
 
 
 
The objective of the Clean Air Act is to protect what? 
The earth...
Preview 2 out of 7 pages
Add to cartWhat date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? 
November 14, 1994 
 
 
 
Section 608 of the Federal Clean Air Act requires technicians to what? 
Recover all refrigerants. 
 
 
 
The objective of the Clean Air Act is to protect what? 
The earth...
a vacum pump should be connected 
as far away from the pump as possible 
 
 
 
a high capacity vacuum pump and short, large diameter hoses will 
dramatically reduce emissions, pressure drop, and evacuation/dehydration time 
 
 
 
ozone contains three 
oxygen atoms 
 
 
 
one chlorine atom can destro...
Preview 2 out of 8 pages
Add to carta vacum pump should be connected 
as far away from the pump as possible 
 
 
 
a high capacity vacuum pump and short, large diameter hoses will 
dramatically reduce emissions, pressure drop, and evacuation/dehydration time 
 
 
 
ozone contains three 
oxygen atoms 
 
 
 
one chlorine atom can destro...
Are there drop-in replacements for R-12 systems? Why or why not? 
No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. 
 
 
 
What type of oil is used in R-134a and what oils will it mix with? 
Ester based oils and they do not mix with other oils 
 
 
 ...
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Add to cartAre there drop-in replacements for R-12 systems? Why or why not? 
No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. 
 
 
 
What type of oil is used in R-134a and what oils will it mix with? 
Ester based oils and they do not mix with other oils 
 
 
 ...
What does Section 608 of the Federal Clean Air Act state? 
Requires anyone who handles refrigerants to be certified in proper refrigerant handling techniques. 
 
 
 
What is the ozone layer composed if? 
3 oxygen atoms bonded together 
 
 
 
Where is the ozone layer? 
10-30 miles above sea level, in...
Preview 1 out of 2 pages
Add to cartWhat does Section 608 of the Federal Clean Air Act state? 
Requires anyone who handles refrigerants to be certified in proper refrigerant handling techniques. 
 
 
 
What is the ozone layer composed if? 
3 oxygen atoms bonded together 
 
 
 
Where is the ozone layer? 
10-30 miles above sea level, in...
As of what date did it become unlawful to release Class 1 and Class II 
refrigerants to the atmosphere? 
a. July 1, 1992 
b. July 1, 1993 
c. November 14, 1994 
d. January 1, 1996 
a. July 1, 1992 
 
 
 
What is the ozone layer and why is it important to us on Earth? 
a. Thin layer of R-22 in the at...
Preview 4 out of 79 pages
Add to cartAs of what date did it become unlawful to release Class 1 and Class II 
refrigerants to the atmosphere? 
a. July 1, 1992 
b. July 1, 1993 
c. November 14, 1994 
d. January 1, 1996 
a. July 1, 1992 
 
 
 
What is the ozone layer and why is it important to us on Earth? 
a. Thin layer of R-22 in the at...
What are the typical uses of the center port of gauge set? 
Used during evacuation, charging and recovery procedures. 
 
 
 
What color are the gauges on a manifold gauge set? 
Low pressure is blue, High pressure is red. 
 
 
 
What are the typical ranges of pressure measurements used on the gauges ...
Preview 3 out of 27 pages
Add to cartWhat are the typical uses of the center port of gauge set? 
Used during evacuation, charging and recovery procedures. 
 
 
 
What color are the gauges on a manifold gauge set? 
Low pressure is blue, High pressure is red. 
 
 
 
What are the typical ranges of pressure measurements used on the gauges ...
Which Refrigerants contain the most chlorine? 
CFC's 
 
 
 
As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants to the atmosphere? 
July 1, 1992 
 
 
 
Which Refrigerants have the lowest zone depletion potential? 
HFC's 
 
 
 
The molecule found in CFC...
Preview 2 out of 10 pages
Add to cartWhich Refrigerants contain the most chlorine? 
CFC's 
 
 
 
As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants to the atmosphere? 
July 1, 1992 
 
 
 
Which Refrigerants have the lowest zone depletion potential? 
HFC's 
 
 
 
The molecule found in CFC...
Refrigeration technicians who violate the Clean Air Act can: - 
Lose their EPA certification, be fined, be required to appear in Federal court. 
 
 
 
After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - 
recovery and recycling. 
 
 
 
Refrigerant t...
Preview 2 out of 15 pages
Add to cartRefrigeration technicians who violate the Clean Air Act can: - 
Lose their EPA certification, be fined, be required to appear in Federal court. 
 
 
 
After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - 
recovery and recycling. 
 
 
 
Refrigerant t...
As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? 
July 1, 1992. 
 
 
 
What is the ozone layer and why is it important to us on Earth? 
Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that exte...
Preview 1 out of 2 pages
Add to cartAs of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? 
July 1, 1992. 
 
 
 
What is the ozone layer and why is it important to us on Earth? 
Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that exte...
Reusable refrigerant containers under high-pressure must be hydrostatically tested how often? 
5 years 
 
 
 
How much can a person be fined per day per violation for knowingly releasing a regulated substance that violates the Clean Air Act? 
$44,539 
 
 
 
HCFCs contain 
Hydrogen, Chlorine, Fluorin...
Preview 2 out of 10 pages
Add to cartReusable refrigerant containers under high-pressure must be hydrostatically tested how often? 
5 years 
 
 
 
How much can a person be fined per day per violation for knowingly releasing a regulated substance that violates the Clean Air Act? 
$44,539 
 
 
 
HCFCs contain 
Hydrogen, Chlorine, Fluorin...
Ozone stratosphere above the earth consists of molecules containing... 
3 oxygen atoms (O3) 
 
 
 
The oxygen we breathe contains how many atoms in each molecule? 
two atoms (O2) 
 
 
 
The ozone layer consists of ozone in the stratosphere at an altitude of between __________above the earth 
7 and 2...
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Add to cartOzone stratosphere above the earth consists of molecules containing... 
3 oxygen atoms (O3) 
 
 
 
The oxygen we breathe contains how many atoms in each molecule? 
two atoms (O2) 
 
 
 
The ozone layer consists of ozone in the stratosphere at an altitude of between __________above the earth 
7 and 2...
the state of the refrigerant entering the metering device is? 
A subcooled high pressure liquid. 
 
 
 
what type of refrigerant is used in VERY high-pressure appliances? 
R-503 
 
 
 
what type of refrigerant is used in MEDIUM pressure appliances? 
R-500 
 
 
 
what type of refrigerant is used in H...
Preview 2 out of 14 pages
Add to cartthe state of the refrigerant entering the metering device is? 
A subcooled high pressure liquid. 
 
 
 
what type of refrigerant is used in VERY high-pressure appliances? 
R-503 
 
 
 
what type of refrigerant is used in MEDIUM pressure appliances? 
R-500 
 
 
 
what type of refrigerant is used in H...
When moisture exists in an operating system, what is most likely to occur? 
Acid will form. 
 
 
 
What factor(s) affects the speed of evacuation? 
1) The size of the equipment being evacuated. 
 
2)The ambient temperature. 
 
3) The amount of moisture in the system 
 
 
 
A system is considered deh...
Preview 1 out of 3 pages
Add to cartWhen moisture exists in an operating system, what is most likely to occur? 
Acid will form. 
 
 
 
What factor(s) affects the speed of evacuation? 
1) The size of the equipment being evacuated. 
 
2)The ambient temperature. 
 
3) The amount of moisture in the system 
 
 
 
A system is considered deh...
Type I 
Small appliances- 5lbs or less 
 
 
 
Type II 
Residental Units/ Light Commercial 
 
 
 
Type III 
Industrial 
 
 
 
Universal 
All types 
 
 
 
November 14th, 1994 
Section 608 of the federal clean air act requires all persons who maintain, service, repair or dispose of appliances that cont...
Preview 1 out of 4 pages
Add to cartType I 
Small appliances- 5lbs or less 
 
 
 
Type II 
Residental Units/ Light Commercial 
 
 
 
Type III 
Industrial 
 
 
 
Universal 
All types 
 
 
 
November 14th, 1994 
Section 608 of the federal clean air act requires all persons who maintain, service, repair or dispose of appliances that cont...
Technicians who perform sealed system service on small appliances must have; 
Type I or universal certification 
 
 
 
A small appliance is defined by EPA as; 
Appliances manufactured, charged, and hermetically sealed in a factory with 5 lbs or less of refrigerant 
 
 
 
Type I Certification is requ...
Preview 1 out of 3 pages
Add to cartTechnicians who perform sealed system service on small appliances must have; 
Type I or universal certification 
 
 
 
A small appliance is defined by EPA as; 
Appliances manufactured, charged, and hermetically sealed in a factory with 5 lbs or less of refrigerant 
 
 
 
Type I Certification is requ...
How many types of HVAC certifications are there? 
There are 4 types. 
 
 
 
What does a metering device do? 
The metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. 
 
 
 
What is absorbed in the evaporator? 
Heat is absorbed in the evaporator. 
 
 
 ...
Preview 2 out of 14 pages
Add to cartHow many types of HVAC certifications are there? 
There are 4 types. 
 
 
 
What does a metering device do? 
The metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. 
 
 
 
What is absorbed in the evaporator? 
Heat is absorbed in the evaporator. 
 
 
 ...
What is a blend of two or more components who's equilibrium vapor phase & liquid phase compositions are the same at a given pressure? 
Azeotrope 
 
 
 
This is a halogenated hydrocarbon containing one or more of the three halogens: fluorine, chlorine, and bromine 
Halocarbon 
 
 
 
Chlorofluorocarb...
Preview 2 out of 10 pages
Add to cartWhat is a blend of two or more components who's equilibrium vapor phase & liquid phase compositions are the same at a given pressure? 
Azeotrope 
 
 
 
This is a halogenated hydrocarbon containing one or more of the three halogens: fluorine, chlorine, and bromine 
Halocarbon 
 
 
 
Chlorofluorocarb...
Type 1 
Small appliances- 5lbs or less 
 
 
 
Type 2 
Residental Units/ Light Commercial 
 
 
 
Type 3 
Industrial 
 
 
 
Universal 
All types 
 
 
 
Section 608 of the federal clean air act requires all persons who maintain, service, repair or dispose of appliances that contain regulated refrigeran...
Preview 2 out of 10 pages
Add to cartType 1 
Small appliances- 5lbs or less 
 
 
 
Type 2 
Residental Units/ Light Commercial 
 
 
 
Type 3 
Industrial 
 
 
 
Universal 
All types 
 
 
 
Section 608 of the federal clean air act requires all persons who maintain, service, repair or dispose of appliances that contain regulated refrigeran...
When a new system has been assembled, the first thing to do is? 
Pressurize the system with an inert gas & leak check. 
 
 
 
After installation of a field-piped R-410A split heat pulp, the unit should first be? 
Pressurized with nitrogen then leak checked. 
 
 
 
The EPA regulations require that an...
Preview 2 out of 7 pages
Add to cartWhen a new system has been assembled, the first thing to do is? 
Pressurize the system with an inert gas & leak check. 
 
 
 
After installation of a field-piped R-410A split heat pulp, the unit should first be? 
Pressurized with nitrogen then leak checked. 
 
 
 
The EPA regulations require that an...
On low pressure chillers, moisture typically enters the refrigerant system through 
air leaks from areas with gaskets or fittings 
 
 
 
The maximum test pressure for leak testing a low pressure centrifugal is: 
10 psig 
 
 
 
Leak test and repair the chiller to reduce refrigerant loss from a pruge ...
Preview 2 out of 13 pages
Add to cartOn low pressure chillers, moisture typically enters the refrigerant system through 
air leaks from areas with gaskets or fittings 
 
 
 
The maximum test pressure for leak testing a low pressure centrifugal is: 
10 psig 
 
 
 
Leak test and repair the chiller to reduce refrigerant loss from a pruge ...
If a leaking appliance with a regulated refrigerant is not going to be repaired, it must be; 
A retrofitted or retired within 3 months. 
B retrofitted or retired within 12 months. 
C replaced within 3 months. 
D replaced within 12 months. 
B 
retrofitted or retired within 12 months. 
 
 
 
A high-pr...
Preview 2 out of 7 pages
Add to cartIf a leaking appliance with a regulated refrigerant is not going to be repaired, it must be; 
A retrofitted or retired within 3 months. 
B retrofitted or retired within 12 months. 
C replaced within 3 months. 
D replaced within 12 months. 
B 
retrofitted or retired within 12 months. 
 
 
 
A high-pr...
Recovery equipemnt used for the service or repair of small appliances must be certified by an EPA approved lab if the recovery equipment was made after 
November 15, 1993 
 
 
 
Recovery devices made before 11-15-93 and are used for recovery of refrigerant from small appliances must be capable of: 
...
Preview 1 out of 4 pages
Add to cartRecovery equipemnt used for the service or repair of small appliances must be certified by an EPA approved lab if the recovery equipment was made after 
November 15, 1993 
 
 
 
Recovery devices made before 11-15-93 and are used for recovery of refrigerant from small appliances must be capable of: 
...
To process refrigerant to a level that is equal to new product specifications as 
Reclaiming 
 
 
 
The low side test pressure data plate value should be used by a technician to determine a safe pressure for 
Leak testing 
 
 
 
Silicone elastomers are not compatible with what refrigerant 
HFC 
 
 
...
Preview 2 out of 6 pages
Add to cartTo process refrigerant to a level that is equal to new product specifications as 
Reclaiming 
 
 
 
The low side test pressure data plate value should be used by a technician to determine a safe pressure for 
Leak testing 
 
 
 
Silicone elastomers are not compatible with what refrigerant 
HFC 
 
 
...
The use and release of CFCs and HCFCs has a far reaching effect on... 
The stratosphere 
 
 
 
Corp loss, eye disease and skin cancer have been attributed to: 
Depletion of Stratospheric ozone 
 
 
 
The chlorine in CFCs and HCFCs: 
will not dissolve in water 
 
 
 
Which of the following refrigeran...
Preview 1 out of 3 pages
Add to cartThe use and release of CFCs and HCFCs has a far reaching effect on... 
The stratosphere 
 
 
 
Corp loss, eye disease and skin cancer have been attributed to: 
Depletion of Stratospheric ozone 
 
 
 
The chlorine in CFCs and HCFCs: 
will not dissolve in water 
 
 
 
Which of the following refrigeran...
What does ozone in the stratosphere above the earth consist of? 
Molecules containing 3 oxygen atoms 
 
 
 
Which of the following refrigerants has the lowest global warming potential? 
R-600a 
 
 
 
Which of the following gases is used as the baseline measurement for global warming potential? 
Carb...
Preview 2 out of 10 pages
Add to cartWhat does ozone in the stratosphere above the earth consist of? 
Molecules containing 3 oxygen atoms 
 
 
 
Which of the following refrigerants has the lowest global warming potential? 
R-600a 
 
 
 
Which of the following gases is used as the baseline measurement for global warming potential? 
Carb...
The maximum test pressure for leak testing a low-pressure centrifugal chiller is 
10 psig 
 
 
 
Excessive operation of a purge system means 
The system has a leak on the sub-ambient pressure side of the system 
 
 
 
For a commercial refrigeration system with a charge of 50 pounds or more refrigera...
Preview 2 out of 5 pages
Add to cartThe maximum test pressure for leak testing a low-pressure centrifugal chiller is 
10 psig 
 
 
 
Excessive operation of a purge system means 
The system has a leak on the sub-ambient pressure side of the system 
 
 
 
For a commercial refrigeration system with a charge of 50 pounds or more refrigera...
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