EPA 608 combined
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
A high-pressure appliance containing less than 200 lbs. of an HCFC or HFC refrigerant must be evacuated (recovered) to a level of:
0 inches of vacuum
A high-pressure appliance containing 210 lbs. of R-407C refrigerant must be evacuated (recovered) to a level of;
10 inches of vacuum
A single chlorine atom can destroy how many ozone molecules?
100,000
When removing oil from a lowpressure system, a temperature of what must be attained?
130 degrees F.
The EPA-required evacuation level for recovery or recycling equipment used on low-pressure systems is:
25 mm of Hg absolute
An ozone molecule contains;
3 oxygen atoms
Leaks must be repaired on industrial process and refrigeration units with a 50-pound charge or greater when the annualized leak rate reaches _____ or more.
30%
When charging a low-pressure system, refrigerant should be introduced to the system as a vapor to raise the system's saturation temperature to a minimum of;
36 degrees.
Reusable refrigerant containers under high-pressure must be hydrostatically tested how often?
5 years
Before shipping any used refrigerant cylinders, what standards should be checked?
Department of Transportation
Crop loss, eye disease and skin cancer have been attributed to:
Depletion of Stratospheric ozone
Crop loss, eye disease, and skin cancer have been attributed to;
Depletion of Stratospheric ozone
Disposable cylinders must be:
Discarded
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the proper disposal method for;
Disposable cylinders
Proper recovery techniques begin with the use of appropriate recovery equipment that has been certified by:
EPA approved laboratory
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 type of refrigerant contains no chlorine?
HFCs
Silicone elastomers, for use in seals and gaskets, are not compatible with which refrigerants?
HFOs
HCFCs contain;
Hydrogen, Chlorine, Fluorine, and Carbon
What type of equipment can be worked on with Type III certification?
Low-Pressure
Which international agreement (Treaty) regulated the production and use of CFCs, HCFCs, halons, methyl chloroform and carbon tetrachloride?
Montreal Protocol
The EPA requirement for repairing leaks on small appliances states that:
A. Leaks should be repaired whenever possible.
Which of the following has the highest Ozone Depletion Potential?
CFCs
Recovery equipment must be:
Certified by an EPA-approved testing laboratory.
The molecule found in CFCs and HCFCs that depletes ozone is:
Chlorine
EPA regulations state that removal of which component constitutes a "major repair"?
Compressor
After the refrigerant has been recovered, which of the following should be used to flush the system?
Nitrogen
After the installation of any type of system, the unit should first be:
Pressurized with an inert gas and leak checked.
Which of the following refrigerant has a GWP closest to "1"?
R-1233zd
Which of the following refrigerant has a GWP of "1"?
R-1233zd
Which of the following refrigerants is an HFO?
R-1234ze
Which HC refrigerant is allowed for use in new domestic small appliances?
R-600a
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
When using a system-dependent recovery system on an appliance that has an operating compressor, the technician should;
Run the compressor and recover from the high side of the system only.
Which of the following best describes the refrigerant recovery process from an R-123 system?
Start with liquid removal and then switch over to vapor recovery.
Technicians who perform sealed-system service on small appliances must have:
Type I or Universal certification
Water must be circulated through the tubes when evacuating refrigerant in order to prevent:
Water from freezing.
The condenser _______________________________________
changes a high-pressure vapor to a high-pressure liquid.
The compressor ____________________________________
changes a low-pressure vapor to a high-pressure vapor.
When a system is in deep vacuum, you should never:
energize the compressor.
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
To repair a chiller operating with R-22, the technician:
must have a Type II certification.
If a leaking appliance with a regulated refrigerant is not going to be repaired, it must be:
retrofitted or retired within 12 months.
The use and release of CFCs and HCFCs has a far reaching effect on ________.
the stratosphere
HFCs ________;
will not damage stratospheric ozone, but have a high GWP.
The chlorine in CFCs and HCFCs:
will not dissolve in water.
The chlorine in CFCs and HCFCs;
will not dissolve in water.
Which ASHRAE classification means slightly flammable?
A2L
The standard for machine room safety is:
ASHRAE-15
A small appliance is defined by the EPA as:
Appliances manufactured, charged, and hermetically sealed in a factory that contain 5 lbs. or less of refrigerant.
