EPA 608 CORE TEST EXAM|| LATEST 2024-4045
QUESTIONS AND 100% CORRECT ANSWERS
ALREADY GRADED A+|| LATEST AND COMPLETE
UPDATE 2024-2025 WITH VERIFIED SOLUTIONS||
ASSURED PASS!!!
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 - √ - ANSWER: a. July 1, 1992
Quiz :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 - √ - ANSWER: 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
Quiz :The atom found in CFC and HCFC refrigerants that destroys ozone in the
stratosphere is?
a. Fluorine
,2|Pag e
b. Carbon
c. Hydrogen
d. Chlorine - √ - ANSWER: d. Chlorine
Quiz :What is an ozone molecule made of?
a. Refrigerant
b. Ammonia
c. Three oxygen atoms (O3).
d. Oxygen and ammonia. - √ - ANSWER: Three oxygen atoms (O3).
Quiz :Which refrigerant is a CFC?
a. R-134A
b. R-123
c. R-22
d. R-12 - √ - ANSWER: d. R-12
Quiz :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 - √ - ANSWER: c. Chlorine and bromine atoms emitted into the
atmosphere
Quiz :Which refrigerant is a HFC?
a. R-134A
b. R-123
,3|Pag e
c. R-22
d. R-12 - √ - ANSWER: a. R-134A
Quiz :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. - √ -
ANSWER: 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.
Quiz :Which refrigerant contains no chlorine?
a. R-134A
b. R-123
c. R-22
d. R-12 - √ - ANSWER: a. R-134A
Quiz :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
, 4|Pag e
d. All of the above are correct - √ - ANSWER: d. All of the above are correct
Quiz :The rule of thumb for refilling approved cylinders is a maximum of ___
percent
liquid?
a. 60%
b. 79%
c. 80%
d. 90% - √ - ANSWER: c. 80%
Quiz :What do the letters in "HCFC" stand for?
a. High Carbon Fluorine Chlorine
b. hydrochlorofluorocarbons
c. Harmful Carbon Fluorine Chlorine
d. highchlorinefluorocarbon - √ - ANSWER: b. hydrochlorofluorocarbons
Quiz :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. - √ - ANSWER: a. Remove a
refrigerant in any condition from a system in either an
active or passive manner, and store it in an external container
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller NURSELINCON. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $24.49. You're not tied to anything after your purchase.
