EPA 608 Core

Where is the stratosphere?

Where is ozone located?

What does an ozone molecule consist of?

The ozone layer protects us from...

The ozone layer helps to maintain...

Depletion of ozone causes...

What type of refrigerants, when released into the atmosphere, cause ozone depletion?

What in refrigerants causes ozone depletion?

What compound is formed when chlorine meets ozone?

How many ozone molecules can be destroyed by one chlorine atom?

The rise in the amount of chlorine measured in the stratosphere over the past twenty years matches the rise in...

The chlorine in CFCs will break down in water(true/false).

The chlorine in CFCs will break down into compounds that will dissolve in water(true/false).

What does ODP stand for?

HFCs have a higher ODP than CFCs (true/false).

Which refrigerant type has no ODP?

What chemicals make up CFCs?

What chemicals make up HCFCs?

What chemicals make up HFCs?

Give examples of CFCs?

Give examples of HCFCs?

Give examples of HFCs?

Who regulates section 608 of the clean air act?

How much is the fine for releasing refrigerant into the atmosphere?

What is the bounty for turning someone in?

Who gets fined?

Can the EPA require you to demonstrate the ability to properly perform refrigerant recovery/recycling duties?

What can happen if you cannot properly perform recovery/recycling?

To falsify or {BLANK} required records will get your certification revoked.

Failure to reach {BLANK} prior to opening or disposing of appliances will get your certification revoked.

Knowingly releasing HCFCs, CFCs, or HFCs while repairing appliances, with the exception of {BLANK} releases will get your certification revoked.

Whose responsibility is it to ensure that refrigerant has been removed from appliances before disposal?

Since what date has it been illegal to service, maintain or dispose of appliances without being appropriately certified?

Since what date has it been illegal to vent CFCs or HCFCs?

Since what date has it been illegal to vent HFCs?

Failure to {BLANK} refrigerant before opening or disposing of an appliance will get your certification revoked.

Who has to approve a recovery device?

A recovery device must have what type of fittings?

A recovery device must be registered with the EPA(true or false)

You can only add nitrogen to a system if it is ...

What steps must be taken to dispose of a disposable cylinder?

When did the Montreal Protocol go into effect?

What date were CFCs phased out?

Recovery equipment manufactured after what date must be certified and labelled by the EPA?

What are the 2 types of recovery equipment?

What type of recovery device captures refrigerant with the assistance of components in the appliance?

What type of recovery device has its own means to draw refrigerant out of the appliance?

What date did it become mandatory for buyers of CFCs and HCFCs to be certified technicians?

Which section of the clean air act do technicians need to be certified in order to purchase refrigerant in amounts smaller than 20lbs?

Which type of refrigerant is considered ozone frielndly?

What type of refrigerant is r-134a?

Which refrigerant is generally used to replace r-12?

What type of oil is used in an r-134a system?

Can esters be mixed with other oils?

What do we call a 3-part blend?

What type of oil is used with ternary blends?

What type of oil has a high affinity for water?

Why will the components of a refrigerant blend leak at different rates?

Do you charge a system with a blended refrigerant in the high side or the low side?

Do you charge a vapor blend in liquid form or vapor form?

What is the term used for a refrigerant blend that has multiple boiling points and condensing points?

What is the term for a refrigerant blend that does not have temperature-glide?

A service aperture or stub is required on all equipment of what types?

What must you do if you discover that two or more refrigerants have been mixed in a system?

Can you mix refrigerants into the same recovery tank?

What does a strong odor durint the recovery process usually indicate?

What should you watch out for if you discover a burnt out compressor?

Can nitrogen be legally flushed from a system after it is used to flush debris out of a system?

What additional component should also be installed when you replace a burn out compressor?

The {BLANK} the ambient temperature, the slower the recovery process.

Do you want long or short hoses when recovering?

Long hoses will cause excessive pressure drop, increased recovery time, and have a potential for increased emissions. (true or false)

After completing the transfer of liquid refrigerant between a recovery unit and a refrigeration system, you should guard against trapping liquid refrigerant, where?

What type of leak detection should you use first, to determine the general area of the leak?

What method is used to zero-in on the exact spot of a leak?

Dehydration through evacuation removes what?

What two substances are formed if water is allowed to remain in a refrigeration system?

Is it possible to over-evacuate a system?

WHen evacuating, you must always achieve the {BLANK} vacuum level.

What 5 things affect the speed and efficiency of evacuation?

Vacuum lines should equal to or larger than...

Should the system vacuum gauge be close or far from the vacuum pump?

Measuring a system vacuum should be done with the system isolated, and the vacuum pump turned off (true or false).

What is complete when the vacuum gauge shows that you have reached and held the required vacuum.

Disposable cylinders are only used with ...

Disposable cylinders must be used for recovery(true or false).

Name the ports of a recovery cylinder.

A refillable recovery container can be filled to what capacity?

Name the 3 ways filling of a recovery cylinder can be controlled.

Refillable containers must be hydrostatically tested and date stamped how often?

Who regulates refillable cylinders?

Recovery cylinders are what color?

All cylinders should be inspected for what?

What should be done if a cylinder appears to have a problem?

What precautions should you take when working with refrigerant?

When pressurizing with nitrogen, what should always be used?

When pressurizing with nitrogen, what should always be inserted downsteam?

When leak checking a system, why can't oxygen or compressed air be used?

Where can you find safe pressure for leak-checking?

Is it ok to cut or braze a refrigerant line on a charged system?

What does SCBA stand for?

Refrigerant is lighter than air.(true or false)

How can inhaling refrigerant affect the human body?

When exposed to an open flame or hot metal surface, r-12 and r-22 will form what three compounds?

What must be stamped on a DOT classification tag?