EPA-CORE
The molecule found in CFCs and HCFCs that depletes ozone is
Chlorine
How much can a person be fined per day per violation for knowingly releasing a regulated substance that violates the Clean Air Act
$44,539
Which ASHRAE classification means slightly flammable?
A2L
Which of the following is an example of a non-condensable
Air
Which of the following has the highest Ozone Depletion Potential?
CFCs
Before shipping any used refrigerant cylinders, check that the cylinder meets what standards:
Department of Transportation
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the proper disposal method for
Disposable cylinders
Which type of refrigerant contains no chlorine?
HFCs
HCFCs contain
Hydrogen, Chlorine, Fluorine, and Carbon
Which international agreement (Treaty) regulated the production and use of CFCs, HCFCs, halons, methyl chloroform and carbon tetrachloride
Montreal Protocol
Which of the following refrigerant has a GWP of "1"
R-1233zd
Which of the following refrigerants is an HFO
R-1234ze
What are refrigeration and air-conditioning compressor heaters used for
To reduce the amount of refrigerant in the oil
HFCs
will not damage stratospheric ozone, but have a high GWP
The condenser
changes a high-pressure vapor to a high-pressure liquid
A refrigerant cylinder designed to hold recovered refrigerant has a
grey body and yellow top.
The low-side test-pressure data-plate value should be used by a technician to determine a safe pressure for:
leak testing
A high-pressure appliance containing 210 lbs. of R-407C refrigerant must be evacuated (recovered) to a level of
10 inches of vacuum
The rupture disk on a low-pressure chiller has a burst pressure of
10 psig
A comfort cooling system that contains 50 pounds or more of R-410A is leaking. What will be the new maximum allowable annual leak rate starting in 2019
10%
A single chlorine atom can destroy how many ozone molecules
100,000
Reusable refrigerant containers under high-pressure must be hydrostatically tested how often
5 years
The EPA's leak repair requirements apply to appliances with a charge size of
50 pounds or greater.
When charging a chiller, refrigerant vapor is introduced into the system before charging with liquid. This is because
Liquid charged into a deep vacuum will cause the refrigerant to boil and may lower temperatures enough to freeze the water in the tubes.
If a reclamation facility receives a tank of mixed refrigerant, they may:
refuse to accept the refrigerant or charge extra for processing it.
The use and release of CFCs and HCFCs has a far reaching effect on
the stratosphere
An ozone molecule contains
three oxygen atoms
To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical analysis defines
Reclaiming
Clean refrigerant for reuse by separating the oil from the refrigerant and removing moisture from the refrigerant by passing it through one or more filter driers, is the definition of
Recycle
Which refrigerants can be mixed in an appliance
Refrigerants cannot be mixed
Silicone elastomers, for use in seals and gaskets, are not compatible with which refrigerants
HFOs
The chlorine in CFCs and HCFCs:
will not dissolve in water.
When is it essential to take measures to help release trapped CFC, HCFC, or HFC refrigerant from the compressor oil during refrigerant recover
When using passive recovery devices on small appliances with non-operating compressors.
Before shipping any used refrigerant cylinders, what standards should be checked
Department of Transportation The Significant New Alternatives Policy (SNAP) Underwriters Laboratories *All of the above*
Crop loss, eye disease and skin cancer have been attributed to:
Depletion of Stratospheric ozone
What is the Significant New Alternatives Policy (SNAP) Program?
EPA's program that identifies refrigerants with lower overall risks to human health and the environment.
Which of the following refrigerant has a GWP closest to "1"
R-1233zd
The compressor
changes a low-pressure vapor to a high-pressure vapor
