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Chlorofluorocarbon (CFC) Refrigeration Practice Exam 7

Chlorofluorocarbon (CFC) Refrigeration Practice Exam 7

The topic is Chlorofluorocarbon (CFC) Refrigeration. The following exam is produced to test knowledge of safe refrigerant handling and EPA regulations regarding the HVAC industry. It contains over hundred questions of the topic to make sure your knowledge level gets tested so you can prepare yourself for the final exam.

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Quiz Questions And Answers

is a blend of two or more components whose equilibrium vapor phase and liquid phase compositions are the same at a given pressure.

Azeotrope
Fractionation
Compound
Halocarbon

is a halogenated hydrocarbon containing one or more of the three halogens: fluorine, chlorine, and bromine.

Azeotrope
Fractionation
Halocarbon
Compound

Chlorofluorocarbons (CFCs) consist of______, and ___.

Chlorine, fluorine, carbon
Carbon, fluorine, other chemicals
Cesium, fluoride, carbon
.chlorine, fluorine, cesium

CFCs are chemically very stable because they contain no ____.

Hydrogen
Chlorine
.air
Bromine

CFCs are damaging to the ___ ozone layer.

Atmospheric
Marine
Stratospheric
Climatic

Of the three common types of refrigerants has the highest high ozone-depletion potential (ODP).

CFCs
HFCs
HCFCS
LJCs

test methods are assumed by the EPA as the most effective methods for locating the general area of small leaks.

Electronic and Ultrasonic
Halide torch
Soap bubble
Both I and 2

After evacuation of a system, if the pressure rises ABOVE ambient pressure, then

Trapped refrigerant is probably boiling-off.
It could be a leak
.both 1 and 2
None of the above

In cases where the refrigerant cannot be reclaimed due to contamination with other refrigerants, the refrigerant

Can be legally vented to the atmosphere since it can't be reclaimed
Must be destroyed by incineration at a approved facility
Must be used only in Small Appliances
Must be transferred into a disposable cylinder and discarded at a municipal landfill

The system vacuum gauge should be connected ____.

As close as possible to thesystem being evacuated
In series to avoid EPA problems
Close to the vacuum pump
In parallel to avoid EPA problems
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