Door 1
A refrigerant cylinder designed to hold recovered refrigerant has a:
Grey body and yellow top
A single chlorine atom can destroy how many ozone molecules?
100,000
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
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
If both head and suction pressures are too high what is the problem?
Refrigerant overcharge
Before shipping any used recovery/refrigerant cylinders, check that the cylinder meets what standards:
Department of Transportation
Crop loss, eye disease, and skin cancer have been attributed to:
Depletion of Stratospheric ozone
If refrigerant vapor is vented into the atmosphere in a confined condition, it will
Displace oxygen
Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the proper disposal method for:
Disposable cylinders
If both head and suction pressures are too low what is the problem?
Low on refrigerant charge
Refrigerant cylinders must be approved by
DOT
HCFCs contain:
Hydrogen, Chlorine, Fluorine, and Carbon
To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical analysis defines:
Reclaiming
What must always be available when working with large amounts of refrigerants in equipment rooms?
A self-contained breathing apparatus
If the evaporator is encased in a thick block of frost what is the most likely problem?
Defective defrost system
Refrigerant cylinders should never be
Subjected to extreme ambient temperatures
Silicone elastomers, for use in seals and gaskets, are not compatible with which refrigerants?
HFOs
Which type of refrigerant contains no chlorine?
HFCs
When a substance changes from a gas to a liquid, this is known as
Latent heat of condensation
If the evaporator is encased in a thick block of ice what is the problem?
Bad drain system
Reusable refrigerant containers under high-pressure must be hydrostatically tested how often?
5 years
The chlorine in CFC’s and HCFC’s:
Will not dissolve in water
Which international agreement (Treaty) regulated the production and use of CFCs, HCFCs, halons, methyl chloroform, and carbon tetrachloride?
Montreal Protocol
If the head pressure is too high and suction pressure is too low what is the problem?
System restriction
If 2 lb of water are raised from 40 to 60 degrees, how many BTUs are added to the water?
40 BTUs