Stratosphere Study guides, Class notes & Summaries
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EPA Section 609 Exam Questions With Correct Answers
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A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - Answer 80% 
 
Ozone layer absorbs and scatters ________ from the sun - Answer Ultraviolet light 
 
An award of up to ______ may be paid to a person supplying information that leads to a penalty against a technician who is intentionally venting. - Answer $10,000 
 
Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States - Answer Jan 1, 1996 
 
R-134a is a chlorine...
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ENL1501 Assignment 1 Semester 1 2024 (Solutions)
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ENL1501 Assignment 1 Semester 1 2024 (Solutions) 
 
Question 1 
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Question text 
How can packaging support the environment? 
a. 
By providing clear environmental information 
b. 
By using excessive materials 
c. 
By making products more expensive 
d. 
By being visually unappealing 
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What is the primary role of air for bioresources? 
a. 
Providing structural s...
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EPA 608 universal With correct Answers
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EPA 608 universal with correct Answers 
Refrigeration technicians who violate the Clean Air Act can: - 
After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - Refrigerant that is recovered can be returned to: 
 
Refrigerant can not be called "reclaimed" unless it: - . 
The EPA can require a technician to demonstrate their ability to perform proper procedures for recovering and/or recycling refrigerant. Failure to demonstrate competency can re...
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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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NYSTCE Multi-Subject CST: Part 3, Arts & Sciences 152 Questions and Answers New Year Update 2024 Solved 100%
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Altimeter - ️️An instrument that uses air pressure to record height, such as the height of an airplane. 
 
Anemometer - ️️An instrument to measure wind speed. 
 
Angiosperm - ️️A group of plants that produce seeds enclosed within an ovary, which may mature into a fruit. 
 
Annuals - ️️Plants that die after one growing season. 
 
Asexual Reproduction - ️️Reproduction involving ONE parent only. 
 
Atmosphere - ️️The Earth's atmosphere is primarily nitrogen and oxygen. 
- ...
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EPA Section 609 Exam | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+
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A refillable refrigerant cylinder must not be filled above ______ of its full capacity. 
: 80% 
Ozone layer absorbs and scatters ________ from the sun 
: Ultraviolet light 
An award of up to ______ may be paid to a person supplying information that leads to a 
penalty against a technician who is intentionally venting. 
: $10,000 
Since ________, it is no longer legal for CFCs to be manufactured or imported into the 
United States 
: Jan 1, 1996 
R-134a is a chlorine-free refrigerant 
: True 
2...
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EPA 608 Certification Exam with 100% Correct Answers 2023
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What date was the sale of CFC's & HCFC's restricted to technicians certified in 
refrigerant recovery? - Correct answer-November 14, 1994 
Section 608 of the Federal Clean Air Act requires technicians to what? - Correct 
answer-Recover all refrigerants. 
The objective of the Clean Air Act is to protect what? - Correct answer-The earth's 
stratosphere. 
HFC's - Correct answer-HydroFlouroCarbon's 
CFC's - Correct answer-ChloroFluoroCarbon's 
ODP - Correct answer-Ozone Depletion Potential 
W...
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HVAC (EPA Certification Exam Section 608) Questions With Verified Solutions | ALREADY PASSED | LATEST REVISED UPDATE
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HVAC (EPA Certification Exam 
Section 608) Questions With 
Verified Solutions | ALREADY 
PASSED | LATEST REVISED 
UPDATE 
What does a metering device do? - ANSWER The metering 
device causes a reduction in pressure, and therefore a reduction 
in saturation temperature. 
What is absorbed in the evaporator? - ANSWER Heat is 
absorbed in the evaporator. 
What happens in the evaporator? - ANSWER Heat is absorbed 
in the evaporator and causes the refrigerant to boil from liquid to 
vapor. 
At...
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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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SAE 609 questions with correct answers
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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: - Answer 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 unit 
who's right - Answer ...
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