Stratosphere Study guides, Class notes & Summaries
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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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ENVS 2270 EXAM REVIEW QUESTIONS & ANSWERS 2023/2024
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ENVS 2270 EXAM REVIEW QUESTIONS & ANSWERS 2023/2024 
 
 
weather - ANSWER-describes what's happening now. ex: reporting a current temp or snow on the ground. 
 
climate - ANSWER-long term averages of weather. ex: "the temp today is way below avg for this time of year" 
 
atmosphere - ANSWER-the envelope of gases that surround the earth. extends from surface of the earth to appx 145 km above surface. 
 
troposphere - ANSWER-layer 1 - the layer we live in. (clouds, weather, mountains) 
 
strato...
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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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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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Civil Air Patrol Billy Mitchell Test Study Guide questions with complete solutions- Aerospace
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combustion chamber 
an enclosed chamber in which fuel and air are burned for the production of energy 
 
 
 
cycle 
a recurring series of events: the airplane engine has four cycles; intake, compression, power, and exhaust 
 
 
 
lean mixture 
a mixture of gasoline in which there is more air than fuel 
 
 
 
magneto 
an electrical generator tat produces power when rotated 
 
 
 
meter/metering 
in terms of fuel this process of allowing amount of fuel to to pass to the combustion chamber 
 
 
 
p...
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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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EPA 608 Exam Practice Questions 1-100
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EPA 608 Exam Practice Questions 1-100EPA 608 Exam Practice Questions 1-100 
Ozone depletion is caused by _______ in HFC refrigerants. - Answer chlorine 
CFCs and HCFCs ________ making them capable capable of reaching the 
stratospheric ozone layer. - Answer do not dissolve in water or easily break down in the 
atmosphere 
According to the Rolanda-Molina theory, ________ are destroyed by each chlorine 
atom in the stratosphere. - Answer 100,000 ozone molecules 
The stratospheric ozone layer prote...
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SAE 609 Questions and Answers 100% Pass
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SAE 609 Questions and Answers 100% Pass 
The recovery process on an R-12 or R-134a A/C System should continue until a stable vacuum is held by the system for: 2 minutes 
A recycled refrigerant container has been checked and found to be above the given pressure limit for the ambient temperature 
Technician A says that the refrigerant container should be placed in a cooler storage area before use 
Technician B says that the vapor in the container should be slowly vented into a refrigerant handling...
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SDSU Oceanography 100 FINAL Questions With Correct Solutions, Already Passed!!
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What is the origin of the Earth? - Answer-Formed out of a solar nebula 
What are the origins of Life? - Answer-Archaea - the oldest origin of life on Earth 
What is kinetic energy? - Answer-The energy of motion 
What is heat energy? - Answer-Energy created by particles of matter rubbing together 
What is density? - Answer-A measurement of the amount of matter in a given volume of something. 
(mass per unit volume) 
What is convection? - Answer-Transfer of heat through currents caused by differen...
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EPA 608 Universal Exam ( ACTUAL EXAM ) Questions With Verified Solutions| ALREADY PASSED
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EPA 608 Universal Exam ( ACTUAL 
EXAM ) Questions With Verified 
Solutions| ALREADY PASSED. 
Refrigeration technicians who violate the Clean Air Act can: - - 
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: - - ANSWER recovery and 
recycling. 
Refrigerant that is recovered can be returned to: - - ANSWER 
the same system or other systems owned by the same...
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