Stratosphere - Study guides, Class notes & Summaries

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...

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...

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 Which in...

A refillable refrigerant cylinder must not be filled above ______ of its full capacity. correct answer: 80% Ozone layer absorbs and scatters ________ from the sun correct 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. correct answer: $10,000 Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States correct answer: Jan...

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...

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 ...

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...

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

DHL Interview ATPL Questions with 100% Correct Answers What is the VOR change over distance? - answer60NM What is the minimum distance between parallel runways? - answer915m what the key points of using Mode 2 for parallel runways? - answerOnly straight in approaches allowed interception angle of no more that 30 degrees must be straight and level 1NM for localiser must be straight and level 2NM for Glideslope Minimum separation of 3NM on same Loc Min separation of 2 NM on adjacent Loc ...

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...