WorksheetsRefrigerant Recovery and Safety Quiz
Total questions: 10
Worksheet time: 5mins
What is the maximum amount of refrigerant that a small appliance can contain according to the EPA definition?
10 pounds
5 pounds
15 pounds
20 pounds
Which type of refrigerant is not approved for new Type I appliances?
R-600a
R-290
R-404A
R-450A
What is the minimum recovery efficiency required for self-contained recovery devices when the compressor is operating?
70%
80%
90%
95%
Which of the following refrigerants generally does not need to be recovered due to its high pressure?
R-134a
R-410A
R-744 (CO2)
R-22
What should be done if a technician suspects that the refrigerant in a recovery cylinder is contaminated?
Mix it with another refrigerant
Release it into the atmosphere
Compare pressure to a pressure-temperature chart
Use it in another appliance
What is the purpose of using a piercing access valve on small appliances?
To permanently seal the system
To add or remove refrigerant
To increase system pressure
To decrease system temperature
What is the recommended safety practice when using nitrogen to service a refrigeration system?
Use a tank without a regulator
Use a tank with a regulator
Vent nitrogen into a closed space
Mix nitrogen with refrigerant
What should be done if a large refrigerant leak occurs in an enclosed area?
Use a fan to circulate the air
Vent the refrigerant into the atmosphere
Vacate and naturally ventilate the area
Seal the area to contain the leak
Which of the following is a sign of a compressor burn-out during refrigerant recovery?
High pressure readings
Pungent odor
Low refrigerant levels
Increased cooling efficiency
What is the maximum charge of HCFCs or HFCs allowed for passive recovery equipment use?
5 pounds
10 pounds
15 pounds
20 pounds
