CAR CAR Refrigerant Recovery & Handling

Question 1

Under EPA Section 608 regulations, technicians who recover refrigerants from appliances must use equipment that is certified by which organization?

Accepted Answer

EPA-approved testing organization

Answer

EPA Section 608 requires that recovery equipment be certified by an EPA-approved testing organization to ensure proper refrigerant capture.

Question 2

What is the primary environmental concern associated with releasing CFC-12 refrigerant into the atmosphere during appliance recycling?

Accepted Answer

Ozone layer depletion

Answer

CFC-12 is an ozone-depleting substance (ODS) that breaks down stratospheric ozone when vented to the atmosphere.

Question 3

Which refrigerant type replaced CFCs in most household refrigerators manufactured after 1995 in the US and is classified as an HFC?

Accepted Answer

R-134a

Answer

R-134a (HFC-134a) became the dominant domestic refrigerator refrigerant after CFCs were phased out under the Clean Air Act.

Question 4

Before opening a refrigerant circuit on an appliance being recycled, the CAR technician should first verify the system is depressurized by:

Accepted Answer

Checking the service valve with a manifold gauge set

Answer

Connecting a manifold gauge set to the service port confirms system pressure before any circuit is opened, preventing uncontrolled refrigerant release.

Question 5

What is the correct disposal requirement for a recovery cylinder that has reached its rated test date and can no longer be refilled?

Accepted Answer

Render it unserviceable and send it to a certified cylinder reconditioner or scrap

Answer

Out-of-date DOT cylinders must be rendered unserviceable (valve removed or holes drilled) and returned to a reconditioner or scrapped; they cannot legally be refilled.

(CAR) Certified Appliance Recycler Practice Test

(CAR) Certified Appliance Recycler Practice Test

CAR CAR Refrigerant Recovery & Handling