Core 1
Which of the elements in CFCs and HCFCs depletes the ozone?
Chlorine
Which of these refrigerants have the highest ozone depletion potential?
HFCs
CFCs
HCFCs
HFOs
CFCs
The colors of a recovery tank are;
yellow top, grey body.
Which of the following is not a component of a CFC?
Hydrogen
Chlorine
Fluorine
Carbon
Hydrogen
Removing refrigerant in any condition from a system and storing it in an approved recovery cylinder or container is:
Recovering
Each chlorine atom in the stratospehere can destroy up to how many ozone molecules?
100,000
The ability of a substance to destroy ozone in the stratosphere is measured by its;
ODP
A recovery tank should never be filled above:
80% of its capacity by weight.
Which of the following is NOT a component of an HFC?
Chlorine
Hydrogen
Fluorine
Carbon
Chlorine
What is the minimum evacuation level for most refrigeration systems?
500 microns
One ozone molecule contains how may oxygen atoms?
3
Which refrigerant is used as the baseline for measuring global warming potential?
R-12
R-22
R-744
R-314a
R-744
When shipping refrigerant cylinders, which of the following is not required?
Cylinders should be shipped upright
Cylinders should be secured
Number of cylinders should be recorded on shipping paper
Cylinders must be shipped in a flammable container
Cylinders must be shipped in a flammable container
The EPA program that identifies refrigerants with lower risks to human health and environment is called:
AHRI
ASHRAE
TLV-TWA
SNAP
SNAP
What color is the low side pressure gauge on a manifold?
Blue
Depletion of the ozone is which kind of problem?
Global
The fine for violating the Clean Air Act per day, per violation is:
$44,539.00
You can purchase R-744 (Carbon Dioxide) without EPA Section 608 Certification.
True
Cleaning refrigerant for reuse by oil separation and single or multiple passes through dryer filters is?
Recycle
What color is the high side pressure gauge on a manifold?
Red
Which of the following is a result from depleting the stratospheric ozone?
Increased rates of skin cancer
Increased rates of cataracts
Decreased crop yields
All the above
All the above
Self-Contained (active) recovery devices are:
devices used to remove refrigerant from an appliance without the assistance of components in the appliance.
devices that rely on the compressor in the appliance or pressure of the refrigerant in the appliance for removal.
devices used to remove refrigerant from an appliance without the assistance of components in the appliance.
Which one of the following does not require EPA Section 608 Certification?
Recovering refrigerant
Charging refrigerant
Replacing a motor
Purchasing R22
Replacing a motor
The process that returns refrigerant to new product specifications and requires chemical analysis is?
Reclaim
Which component changes high pressure vapor refrigerant to high pressure liquid?
Condenser