Ozone depletion - Study guides, Revision notes & Summaries
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ASE AC 609 Question and answers 2023
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ASE AC 609 Question and answers 2023Ozone Depletion Potential - correct answers chemical rating that ranges from 0.01-1.0 and that refers to the amount of ozone depletion caused by a substance compared to CFC-11 (eg HCFC-22 depletes .034 of the ozone where CFC-11 would deplete 1.0) 
 
class 1 substance - correct answers ozone depleting chemical with an ozone depletion potential greater than .2 (eg CFCs)HCFCs - correct answers Hydrochlorofluorocarbons, eg R-22 (HCFC-22) 
 
HFCs - correct...
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EPA 608 CORE Exam Questions and Answers (2022/2023) (Verified Answers) Graded A+
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EPA 608 CORE Exam Questions and Answers (2022/2023) 
(Verified Answers) Graded A+ 
What characteristic or characteristics of CFCs make them more likely than other 
chlorine compounds to reach the stratosphere? Dont disolve iin water 
Each chlorine atom in the stratosphere can destroy how many ozone molecules? 
100,000 ozone molecules 
Which refrigerant contains a CFC? 
R500, R12, R113 or R11? Theyre all CFC's 
HYDROCHLORIC FLORICCARBON (HCFC) refrigerant contain? Hydrogen, 
chlorine, flouri...
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EPA 608 Core Test Sample Questions and Answers Latest 2023 with complete solution.
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EPA 608 Core Test Sample Questions and Answers Latest 2023 with complete solution. 
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 Ans 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 strato...
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WGU D199 Exam Questions and Correct Answers
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WGU D199 Exam Questions and Correct Answers 
in the last 10,000 years: - Answer-humans began modifying the land surface for growing food with advent of agricultural revolution 
 
the agricultural revolution roughly - Answer-coincides with a warm interglacial period that began about 11,700 years ago which is called the HOLOCENE era (warm stable climate) 
 
the last 270 years of the holocene ushered into the - Answer-INDUSTRIAL REVOLUTION when climate pollution began to increase dramatically 
 
th...
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Ozone Depletion Potential (ODP) Exam Questions and Answers
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Ozone Depletion Potential (ODP) Exam Questions and Answers
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EPA 608 Universal Exam With 100% Correct Answers 2023
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Refrigeration technicians who violate the Clean Air Act can: - - Correct answer-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: - - Correct answer-recovery and recycling. 
Refrigerant that is recovered can be returned to: - - Correct answer-the same system or 
other systems owned by the same person without restriction. 
Refrigerant can not be called "reclaimed...
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NFPA 10 Exam 99 Questions with Verified Answers,100% CORRECT
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NFPA 10 Exam 99 Questions with Verified Answers 
 
(SI) - CORRECT ANSWER International System of Units 
 
1 in=. mm - CORRECT ANSWER 25.4 
 
Approved - CORRECT ANSWER Acceptable to the authority having jurisdiction. 
 
(AHJ) - CORRECT ANSWER Authority Having Jurisdiction 
O rganization, office or individual responsible for enforcing requirements of a code or standard, or for approving equipment, materials, an installation or procedure. 
 
Shall - CORRECT ANSWER Indicates a mandatory requirement....
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EPA 608 Core Questions and Answers Already Passed
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Where is the stratosphere? 10 to 30 miles 
Where is ozone located? stratosphere 
What does an ozone molecule consist of? 3 oxygen atoms 
The ozone layer protects us from... ultraviolet radiation 
The ozone layer helps to maintain... stable earth temperatures 
Depletion of ozone causes... crop loss, eye disease, skin cancer, reduced marine life, 
deforestation, increased ground level ozone. 
What type of refrigerants, when released into the atmosphere, ca
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Primavera Biology B Unit 5: Ecology Questions and Answers 100% Pass
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Primavera Biology B Unit 5: Ecology Questions and Answers 100% Pass 
CHECKPOINT 22 
Which describes symbiosis? Two organisms belonging to different species live closely together and have specific interactions. 
What is the most specific ecological level? an organism 
A tick feeding off the blood of a dog is an example of which type of relationship? parasitism 
In which of the following situations would primary succession occur? on an island just formed by a volcano 
Which of the following descr...
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(Answered) EPA SECTION 608 CORE (2021-2022 revision)
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EPA SECTION 608 CORE (2021-2022 revision) 
A disposable cylinder should be reduced to what pressure before scrapping? 
a. 0 psig 
b. 20 psig 
c. 50 psig 
d. 80 psig 
 
A major system repair is being performed on a R-22 appliance. What CANNOT be done to recharge the appliance? 
a. Add R-22 after the repair is complete. 
b. Retrofit the unit to R-407C. 
c. Use recovered or recycled R-22 from the same 
owner. 
d. Top off the unit with R-410a. 
A refillable cylinder must not be filled above what ...
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