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EPA 608 Core Exam: Comprehensive Guide to Refrigerant Handling and Regulations, Exams of Geography

This comprehensive document covers essential topics and questions related to the EPA 608 core exam, a mandatory certification for technicians working with refrigerants. It provides detailed information on the ozone layer, ozone depletion, refrigerant types and properties, regulations, recovery and recycling procedures, leak detection, evacuation, and safety precautions. The document aims to equip readers with the knowledge required to pass the EPA 608 core exam and ensure compliance with the Clean Air Act, covering a wide range of topics including the ozone layer, refrigerant emissions, refrigerant classification and characteristics, regulatory framework, and proper handling techniques.

Typology: Exams

2023/2024

Available from 07/11/2024

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EPA 608 Core Exam with 100%
Correct Answers 2024
Where is the stratosphere? - Correct answer-10 to 30 miles
Where is ozone located? - Correct answer-stratosphere
What does an ozone molecule consist of? - Correct answer-3 oxygen atoms
The ozone layer protects us from... - Correct answer-ultraviolet radiation
The ozone layer helps to maintain... - Correct answer-stable earth
temperatures
Depletion of ozone causes... - Correct answer-crop loss, eye disease,
skin cancer, reduced marine life, deforestation, increased ground level
ozone.
What type of refrigerants, when released into the atmosphere, cause ozone
depletion? - Correct answer-cfcs and hcfcs
What in refrigerants causes ozone depletion? - Correct answer-chlorine
What compound is formed when chlorine meets ozone? - Correct
answer-chlorine monoxide
How many ozone molecules can be destroyed by one chlorine atom? -
Correct answer- 100,000
The rise in the amount of chlorine measured in the stratosphere over the
past twenty years matches the rise in... - Correct answer-flourine
The chlorine in CFCs will break down in water(true/false). - Correct answer-
false
The chlorine in CFCs will break down into compounds that will
dissolve in water(true/false). - Correct answer-false
What does ODP stand for? - Correct answer-ozone depletion potential
HFCs have a higher ODP than CFCs (true/false). - Correct answer-false
Which refrigerant type has no ODP? - Correct answer-HFCs
What chemicals make up CFCs? - Correct answer-chlorine flourine carbon
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EPA 608 Core Exam with 100%

Correct Answers 2024

Where is the stratosphere? - Correct answer-10 to 30 miles Where is ozone located? - Correct answer-stratosphere What does an ozone molecule consist of? - Correct answer-3 oxygen atoms The ozone layer protects us from... - Correct answer-ultraviolet radiation The ozone layer helps to maintain... - Correct answer-stable earth temperatures Depletion of ozone causes... - Correct answer-crop loss, eye disease, skin cancer, reduced marine life, deforestation, increased ground level ozone. What type of refrigerants, when released into the atmosphere, cause ozone depletion? - Correct answer-cfcs and hcfcs What in refrigerants causes ozone depletion? - Correct answer-chlorine What compound is formed when chlorine meets ozone? - Correct answer-chlorine monoxide How many ozone molecules can be destroyed by one chlorine atom? - Correct answer- 100, The rise in the amount of chlorine measured in the stratosphere over the past twenty years matches the rise in... - Correct answer-flourine The chlorine in CFCs will break down in water(true/false). - Correct answer- false The chlorine in CFCs will break down into compounds that will dissolve in water(true/false). - Correct answer-false What does ODP stand for? - Correct answer-ozone depletion potential HFCs have a higher ODP than CFCs (true/false). - Correct answer-false Which refrigerant type has no ODP? - Correct answer-HFCs What chemicals make up CFCs? - Correct answer-chlorine flourine carbon

What chemicals make up HCFCs? - Correct answer-hydrogen chlorine fluorine carbon What chemicals make up HFCs? - Correct answer-hydrogen fluorine carbon Give examples of CFCs? - Correct answer-r-11, 12, 500 Give examples of HCFCs? - Correct answer-r-22, 123 Give examples of HFCs? - Correct answer-r-134a Who regulates section 608 of the clean air act? - Correct answer-epa How much is the fine for releasing refrigerant into the atmosphere? - Correct answer- 27,500 per day per violation. What is the bounty for turning someone in? - Correct answer-up to 10, Who gets fined? - Correct answer-you and your company Can the EPA require you to demonstrate the ability to properly perform refrigerant recovery/recycling duties? - Correct answer-yes What can happen if you cannot properly perform recovery/recycling? - Correct answer- revocation of certification To falsify or {BLANK} required records will get your certification revoked. - Correct answer-fail to keep Failure to reach {BLANK} prior to opening or disposing of appliances will get your certification revoked. - Correct answer-required evacuation rates Knowingly releasing HCFCs, CFCs, or HFCs while repairing appliances, with the exception of {BLANK} releases will get your certification revoked. - Correct answer-de- minimus Whose responsibility is it to ensure that refrigerant has been removed from appliances before disposal? - Correct answer-final person in the disposal chain Since what date has it been illegal to service, maintain or dispose of appliances without being appropriately certified? - Correct answer-november 14th, 1994 Since what date has it been illegal to vent CFCs or HCFCs? - Correct answer-july 1st, 1992 Since what date has it been illegal to vent HFCs? - Correct answer-

Failure to {BLANK} refrigerant before opening or disposing of an appliance will get your certification revoked. - Correct answer-recover Who has to approve a recovery device? - Correct answer-epa A recovery device must have what type of fittings? - Correct answer-low loss A recovery device must be registered with the EPA(true or false) - Correct answer-true You can only add nitrogen to a system if it is ... - Correct answer-empty What steps must be taken to dispose of a disposable cylinder? - Correct answer- recover to 0 psi, render useless, recycle the metal. When did the Montreal Protocol go into effect? - Correct answer-mid 1989 What date were CFCs phased out? - Correct answer-december 31st, 1995 Recovery equipment manufactured after what date must be certified and labelled by the EPA? - Correct answer-november 15th, 1993 What are the 2 types of recovery equipment? - Correct answer-system- dependent and self-contained What type of recovery device captures refrigerant with the assistance of components in the appliance? - Correct answer-system-dependent What type of recovery device has its own means to draw refrigerant out of the appliance? - Correct answer-self-contained What date did it become mandatory for buyers of CFCs and HCFCs to be certified technicians? - Correct answer-november 14th, 1994 Which section of the clean air act do technicians need to be certified in order to purchase refrigerant in amounts smaller than 20lbs? - Correct answer- motor vehicle air conditioning Which type of refrigerant is considered ozone frielndly? - Correct answer-hfc What type of refrigerant is r-134a? - Correct answer-hfc Which refrigerant is generally used to replace r-12? - Correct answer-r-134a What type of oil is used in an r-134a system? - Correct answer-esters

Can esters be mixed with other oils? - Correct answer-no What do we call a 3-part blend? - Correct answer-ternary What type of oil is used with ternary blends? - Correct answer-alkyl benzene What type of oil has a high affinity for water? - Correct answer-hygroscopic Why will the components of a refrigerant blend leak at different rates? - Correct answer- different vapor pressures Do you charge a system with a blended refrigerant in the high side or the low side? - Correct answer-high side Do you charge a vapor blend in liquid form or vapor form? - Correct answer- liquid What is the term used for a refrigerant blend that has multiple boiling points and condensing points? - Correct answer-temperature-glide What is the term for a refrigerant blend that does not have temperature- glide? - Correct answer-azeotropic A service aperture or stub is required on all equipment of what types? - Correct answer- Class I and class II What must you do if you discover that two or more refrigerants have been mixed in a system? - Correct answer-recover the mixture into a separate tank Can you mix refrigerants into the same recovery tank? - Correct answer-no What does a strong odor durint the recovery process usually indicate? - Correct answer- compressor burn out What should you watch out for if you discover a burnt out compressor? - Correct answer-oil contamination Can nitrogen be legally flushed from a system after it is used to flush debris out of a system? - Correct answer-yes What additional component should also be installed when you replace a burn out compressor? - Correct answer-suction line filter drier The {BLANK} the ambient temperature, the slower the recovery process. - Correct answer-lower Do you want long or short hoses when recovering? - Correct answer-short

A refillable recovery container can be filled to what capacity? - Correct answer-80% of capacity by weight Name the 3 ways filling of a recovery cylinder can be controlled. - Correct answer- mechanical float, electronic shut off, weight. Refillable containers must be hydrostatically tested and date stamped how often? - Correct answer-every 5 years. Who regulates refillable cylinders? - Correct answer-DOT Recovery cylinders are what color? - Correct answer-yellow tops and gray bodies All cylinders should be inspected for what? - Correct answer-rust What should be done if a cylinder appears to have a problem? - Correct answer-reduce to 0 psi and discard. What precautions should you take when working with refrigerant? - Correct answer- safety glasses, gloves, follow manufacturers precautions. When pressurizing with nitrogen, what should always be used? - Correct answer- pressure regulator When pressurizing with nitrogen, what should always be inserted downsteam? - Correct answer-relief valve When leak checking a system, why can't oxygen or compressed air be used? - Correct answer-explosion Where can you find safe pressure for leak-checking? - Correct answer-data plate Is it ok to cut or braze a refrigerant line on a charged system? - Correct answer-no What does SCBA stand for? - Correct answer-self contained breathing apparatus Refrigerant is lighter than air.(true or false) - Correct answer-false How can inhaling refrigerant affect the human body? - Correct answer-heart irregularity, unconsciousness, asphyxia When exposed to an open flame or hot metal surface, r-12 and r-22 will form what three compounds? - Correct answer-hydrochloric acid, hydrofluoric

acid, phosgene gas. What must be stamped on a DOT classification tag? - Correct answer-2.2 non- flammable gas