CAR Appliance Recycler Safety & Hazardous Material Handling 3

Question 1

Polychlorinated biphenyls (PCBs) may be found in which component of older large household appliances?

Accepted Answer

Ballast capacitors in fluorescent-lit appliance interiors

Answer

PCBs were used as dielectric fluid in capacitors, including ballast capacitors in older fluorescent lighting found in some appliance interiors.

Question 2

When using a refrigerant recovery machine, the technician should stop recovery operations when:

Accepted Answer

The recovery cylinder reaches 80% of its rated capacity by weight

Answer

Recovery cylinders must not be filled beyond 80% of their rated capacity by weight to allow for liquid expansion and prevent overpressure.

Question 3

Which of the following best describes a Class D fire hazard in an appliance recycling facility?

Accepted Answer

Fire involving combustible metals such as magnesium found in some appliance housings

Answer

Class D fires involve combustible metals like magnesium, which may be present in lightweight appliance components and require specialized dry powder extinguishers.

Question 4

According to EPA regulations, who is authorized to purchase refrigerant in containers larger than 2 pounds?

Accepted Answer

Only EPA Section 608 certified technicians

Answer

EPA Section 608 requires that purchasers of refrigerant in containers larger than 2 lbs must be certified under the applicable type of certification.

Question 5

What is the primary risk of mercury tilt switches found in some older appliances when the unit is crushed without prior de-manufacturing?

Accepted Answer

Mercury is released as a vapor or liquid, contaminating the environment

Answer

Crushing appliances with intact mercury tilt switches releases liquid mercury or mercury vapor, both of which are acutely toxic and create environmental contamination.

(CAR) Certified Appliance Recycler Practice Test

(CAR) Certified Appliance Recycler Practice Test

CAR Appliance Recycler Safety & Hazardous Material Handling 3