2
EPA 608 Core Test Sample Questions with verified detailed
|| || || || || || || || ||
solutions
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 atmosphere that filters UV.
|| || || || || || || || || ||
b. Protective shield for Earth from the sun's harmful ultraviolent (UV)
|| || || || || || || || || ||
rays in the stratosphere layer that extends about 6 to 30 miles above
|| || || || || || || || || || || ||
earth
c. Thin layer of CFC and HCFC in the atmosphere that filters UV.
|| || || || || || || || || || || ||
d. Protective layer that shields UV in the Troposphere - ✔✔b. Protective shield for Earth
|| || || || || || || || || || || || || || ||
from the sun's harmful ultraviolent (UV)
|| || || || ||
rays in the stratosphere layer that extends about 6 to 30 miles above
|| || || || || || || || || || || ||
earth
The atom found in CFC and HCFC refrigerants that destroys ozone in the
|| || || || || || || || || || || ||
stratosphere is? ||
a. Fluorine
||
b. Carbon
||
c. Hydrogen
||
,2
d. Chlorine - ✔✔d. Chlorine
|| || || ||
What is an ozone molecule made of?
|| || || || || ||
a. Refrigerant
||
b. Ammonia
||
c. Three oxygen atoms (O3).
|| || || ||
d. Oxygen and ammonia. - ✔✔Three oxygen atoms (O3).
|| || || || || || || ||
Which refrigerant is a CFC?
|| || || ||
a. R-134A
||
b. R-123
||
c. R-22
||
d. R-12 - ✔✔d. R-12
|| || || ||
What is the name of the atom that attacks ozone molecules?
|| || || || || || || || || ||
a. CFC atoms
|| ||
b. HCFC atoms
|| ||
c. Chlorine and bromine atoms emitted into the atmosphere
|| || || || || || || ||
d. a and b - ✔✔c. Chlorine and bromine atoms emitted into the atmosphere
|| || || || || || || || || || || || ||
Which refrigerant is a HFC?
|| || || ||
a. R-134A
||
b. R-123
||
c. R-22
||
d. R-12 - ✔✔a. R-134A
|| || || ||
,2
Describe how one Chlorine atom can destroy 100,000 ozone molecules.
|| || || || || || || || ||
a. Chlorine releases one of the oxygen atoms and forms two O2 oxygen
|| || || || || || || || || || || ||
molecules, leaving the chlorine molecule free to attack another
|| || || || || || || ||
ozone molecule and repeat the process.
|| || || || ||
b. Chlorine locks up the ozone molecule and then and then goes after
|| || || || || || || || || || || ||
another.
c. Chlorine converts the ozone to bromine and then attacks more ozone
|| || || || || || || || || || ||
molecules.
d. Chlorine can bleach 100,000 ozone molecules before it weakens. - ✔✔a. Chlorine
|| || || || || || || || || || || || ||
releases one of the oxygen atoms and forms two O2 oxygen molecules, leaving the chlorine
|| || || || || || || || || || || || || || ||
molecule free to attack another || || || ||
ozone molecule and repeat the process.
|| || || || ||
Which refrigerant contains no chlorine?
|| || || ||
a. R-134A
||
b. R-123
||
c. R-22
||
d. R-12 - ✔✔a. R-134A
|| || || ||
Name the refrigerant types that belong to CFCs, HCFCs and HFCs
|| || || || || || || || || ||
a. CFC R-11, R-12, R-500
|| || || ||
b. HCFC R-22, R-123
|| || ||
c. HFC R-134a
|| ||
d. All of the above are correct - ✔✔d. All of the above are correct
|| || || || || || || || || || || || || ||
The rule of thumb for refilling approved cylinders is a maximum of ___ percent
|| || || || || || || || || || || || ||
liquid?
, 2
a. 60%
||
b. 79%
||
c. 80%
||
d. 90% - ✔✔c. 80%
|| || || ||
What do the letters in "HCFC" stand for?
|| || || || || || ||
a. High Carbon Fluorine Chlorine
|| || || ||
b. hydrochlorofluorocarbons
||
c. Harmful Carbon Fluorine Chlorine
|| || || ||
d. highchlorinefluorocarbon - ✔✔b. hydrochlorofluorocarbons
|| || || ||
To recover refrigerant is to?
|| || || ||
a. Remove a refrigerant in any condition from a system in either an
|| || || || || || || || || || || ||
active or passive manner, and store it in an external container
|| || || || || || || || || ||
without necessarily testing or processing
|| || || ||
b. Reduce contaminants in used refrigerant by oil separation through filter
|| || || || || || || || || ||
dryers.
c. Reprocess refrigerant to new product specifications
|| || || || || ||
d. Remove refrigerant and change ownership. - ✔✔a. Remove a refrigerant in any condition
|| || || || || || || || || || || || || ||
from a system in either an
|| || || || ||
active or passive manner, and store it in an external container
|| || || || || || || || || ||
without necessarily testing or processing
|| || || ||
What is ODP? || ||
a. Oxygen Destruction Properties
|| || ||
b. Ozone Depletion Potential
|| || ||
EPA 608 Core Test Sample Questions with verified detailed
|| || || || || || || || ||
solutions
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 atmosphere that filters UV.
|| || || || || || || || || ||
b. Protective shield for Earth from the sun's harmful ultraviolent (UV)
|| || || || || || || || || ||
rays in the stratosphere layer that extends about 6 to 30 miles above
|| || || || || || || || || || || ||
earth
c. Thin layer of CFC and HCFC in the atmosphere that filters UV.
|| || || || || || || || || || || ||
d. Protective layer that shields UV in the Troposphere - ✔✔b. Protective shield for Earth
|| || || || || || || || || || || || || || ||
from the sun's harmful ultraviolent (UV)
|| || || || ||
rays in the stratosphere layer that extends about 6 to 30 miles above
|| || || || || || || || || || || ||
earth
The atom found in CFC and HCFC refrigerants that destroys ozone in the
|| || || || || || || || || || || ||
stratosphere is? ||
a. Fluorine
||
b. Carbon
||
c. Hydrogen
||
,2
d. Chlorine - ✔✔d. Chlorine
|| || || ||
What is an ozone molecule made of?
|| || || || || ||
a. Refrigerant
||
b. Ammonia
||
c. Three oxygen atoms (O3).
|| || || ||
d. Oxygen and ammonia. - ✔✔Three oxygen atoms (O3).
|| || || || || || || ||
Which refrigerant is a CFC?
|| || || ||
a. R-134A
||
b. R-123
||
c. R-22
||
d. R-12 - ✔✔d. R-12
|| || || ||
What is the name of the atom that attacks ozone molecules?
|| || || || || || || || || ||
a. CFC atoms
|| ||
b. HCFC atoms
|| ||
c. Chlorine and bromine atoms emitted into the atmosphere
|| || || || || || || ||
d. a and b - ✔✔c. Chlorine and bromine atoms emitted into the atmosphere
|| || || || || || || || || || || || ||
Which refrigerant is a HFC?
|| || || ||
a. R-134A
||
b. R-123
||
c. R-22
||
d. R-12 - ✔✔a. R-134A
|| || || ||
,2
Describe how one Chlorine atom can destroy 100,000 ozone molecules.
|| || || || || || || || ||
a. Chlorine releases one of the oxygen atoms and forms two O2 oxygen
|| || || || || || || || || || || ||
molecules, leaving the chlorine molecule free to attack another
|| || || || || || || ||
ozone molecule and repeat the process.
|| || || || ||
b. Chlorine locks up the ozone molecule and then and then goes after
|| || || || || || || || || || || ||
another.
c. Chlorine converts the ozone to bromine and then attacks more ozone
|| || || || || || || || || || ||
molecules.
d. Chlorine can bleach 100,000 ozone molecules before it weakens. - ✔✔a. Chlorine
|| || || || || || || || || || || || ||
releases one of the oxygen atoms and forms two O2 oxygen molecules, leaving the chlorine
|| || || || || || || || || || || || || || ||
molecule free to attack another || || || ||
ozone molecule and repeat the process.
|| || || || ||
Which refrigerant contains no chlorine?
|| || || ||
a. R-134A
||
b. R-123
||
c. R-22
||
d. R-12 - ✔✔a. R-134A
|| || || ||
Name the refrigerant types that belong to CFCs, HCFCs and HFCs
|| || || || || || || || || ||
a. CFC R-11, R-12, R-500
|| || || ||
b. HCFC R-22, R-123
|| || ||
c. HFC R-134a
|| ||
d. All of the above are correct - ✔✔d. All of the above are correct
|| || || || || || || || || || || || || ||
The rule of thumb for refilling approved cylinders is a maximum of ___ percent
|| || || || || || || || || || || || ||
liquid?
, 2
a. 60%
||
b. 79%
||
c. 80%
||
d. 90% - ✔✔c. 80%
|| || || ||
What do the letters in "HCFC" stand for?
|| || || || || || ||
a. High Carbon Fluorine Chlorine
|| || || ||
b. hydrochlorofluorocarbons
||
c. Harmful Carbon Fluorine Chlorine
|| || || ||
d. highchlorinefluorocarbon - ✔✔b. hydrochlorofluorocarbons
|| || || ||
To recover refrigerant is to?
|| || || ||
a. Remove a refrigerant in any condition from a system in either an
|| || || || || || || || || || || ||
active or passive manner, and store it in an external container
|| || || || || || || || || ||
without necessarily testing or processing
|| || || ||
b. Reduce contaminants in used refrigerant by oil separation through filter
|| || || || || || || || || ||
dryers.
c. Reprocess refrigerant to new product specifications
|| || || || || ||
d. Remove refrigerant and change ownership. - ✔✔a. Remove a refrigerant in any condition
|| || || || || || || || || || || || || ||
from a system in either an
|| || || || ||
active or passive manner, and store it in an external container
|| || || || || || || || || ||
without necessarily testing or processing
|| || || ||
What is ODP? || ||
a. Oxygen Destruction Properties
|| || ||
b. Ozone Depletion Potential
|| || ||
