WorksheetsFAB-101 EPA Week 3 Homework (Type I)
Total questions: 15
Worksheet time: 8mins
Which type of refrigerants cannot be used for new Type I appliances?
CFCs
HOCFCs
HFCs such as R-404A
HFOs
What is the maximum charge for passive recovery equipment use for appliances containing HCFCs or HFCs?
10 pounds
20 pounds
15 pounds
5 pounds
What should be used to minimize the release of refrigerant when attaching a gauge set?
Open-ended hoses
Manual or self-sealing valves
Quick-release connectors
Standard hoses
What is an example of an appliance that can use a passive recovery device?
Industrial freezer
Domestic refrigerator
Commercial air conditioner
Automotive air conditioner
What must recovery devices achieve for the purpose of disposal of small appliances with an inoperative compressor?
70% recovery
80% recovery
90% recovery
100% recovery
Which refrigerant is approved for new household refrigerators, freezers, and combination refrigeration/freezers?
R-290
R-450A
R-600a
R-744
A vacuum pump made for system dehydration may be used to evacuate a recovery cylinder to be used as a recovery device, however it cannot be used
with a pressurized recovery cylinder or vessel for recovery
with a depressurized recovery cylinder or vessel for recovery
with a recovery cylinder or vessel for recovery brought to 500 microns
with a recovery cylinder or vessel for recovery brought to 50 microns
What should be done when servicing a small appliance found to be leaking?
Ignore the leak
Repair the leak whenever possible
Replace the appliance
Use a different refrigerant
Which refrigerant is generally not needed to be recovered due to its high pressure?
R-600a
R-410A
R-744
R-290
What should be done if a technician suspects the refrigerant in a recovery cylinder to be contaminated?
Ignore the contamination
Take a pressure measurement and compare it to a PT chart
Immediately dispose of the refrigerant
Use the refrigerant without checking
What is the recommended action if the pressure-temperature relationship does not match on a refrigerant recovery cylinder?
Use the refrigerant anyway
Turn in the refrigerant to a reclamation facility
Mix the refrigerant with another
Ignore the discrepancy
What should be done when installing any type of access fitting onto a sealed system?
Ignore the fitting
Leak test the fitting before proceeding with recovery
Use the fitting without testing
Remove the fitting after use
What is the consequence of mixing refrigerants in a recovery cylinder?
It is acceptable
It is unacceptable
It is recommended
It is required
What should be installed to improve the speed of refrigerant recovery from a household appliance?
Low and high-side access valves
A larger compressor
A secondary cooling fan
An additional condenser
As long as there is__________ and no impurities in the cylinder, the pressure and temperature should match what is shown on the PT chart.
gas refrigerant present
liquid refrigerant present
no refrigerant present
no gas refrigerant present
