CAR Appliance Recycler Equipment Dismantling 3

Question 1

During the dismantling of a chest freezer, a technician notices the polyurethane foam insulation is yellowed and brittle. This is most likely an indicator of:

Accepted Answer

CFC blowing agent has off-gassed over decades of use

Answer

Yellowing and brittleness in aged polyurethane foam indicates CFC blowing agents have migrated out over time, though residual CFCs may still be present.

Question 2

When using a power shear to dismantle appliance sheet metal, which PPE item is most critical beyond safety glasses and gloves?

Accepted Answer

Cut-resistant sleeves rated ANSI A4 or higher

Answer

Sheet metal edges and flying shards during power shearing create severe laceration risks requiring cut-resistant arm protection rated ANSI A4 or higher.

Question 3

A dehumidifier built before 2010 should be assessed for which refrigerant before recovery?

Accepted Answer

R-22 (chlorodifluoromethane)

Answer

Many dehumidifiers manufactured before 2010 used R-22, a Class II ODS that requires certified recovery under Section 608.

Question 4

When dismantling a top-load washer, the transmission/gearcase assembly should be handled as:

Accepted Answer

An oil-containing component requiring drain-before-shred protocol

Answer

Washer transmissions contain gear oil that must be drained to prevent soil contamination and is handled as used oil under RCRA.

Question 5

What is the purpose of a 'parts washer' station in a certified appliance recycling facility?

Accepted Answer

To remove grease and refrigerant oil from recovered metal scrap

Answer

Parts washers remove residual oils and grease from dismantled metal components to improve scrap quality and reduce contamination at downstream smelters.

(CAR) Certified Appliance Recycler Practice Test

(CAR) Certified Appliance Recycler Practice Test

CAR Appliance Recycler Equipment Dismantling 3