Appliance Recycler Safety & Hazardous Material Handling Flashcards
7 cards from real CAR practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Appliance Recycler Safety & Hazardous Material Handling flashcards as text
Polychlorinated biphenyls (PCBs) may be found in which component of older large household appliances?
Answer: Ballast capacitors in fluorescent-lit appliance interiors
PCBs were used as dielectric fluid in capacitors, including ballast capacitors in older fluorescent lighting found in some appliance interiors.
When using a refrigerant recovery machine, the technician should stop recovery operations when:
Answer: The recovery cylinder reaches 80% of its rated capacity by weight
Recovery cylinders must not be filled beyond 80% of their rated capacity by weight to allow for liquid expansion and prevent overpressure.
Which of the following best describes a Class D fire hazard in an appliance recycling facility?
Answer: Fire involving combustible metals such as magnesium found in some appliance housings
Class D fires involve combustible metals like magnesium, which may be present in lightweight appliance components and require specialized dry powder extinguishers.
According to EPA regulations, who is authorized to purchase refrigerant in containers larger than 2 pounds?
Answer: Only EPA Section 608 certified technicians
EPA Section 608 requires that purchasers of refrigerant in containers larger than 2 lbs must be certified under the applicable type of certification.
What is the primary risk of mercury tilt switches found in some older appliances when the unit is crushed without prior de-manufacturing?
Answer: Mercury is released as a vapor or liquid, contaminating the environment
Crushing appliances with intact mercury tilt switches releases liquid mercury or mercury vapor, both of which are acutely toxic and create environmental contamination.
A worker develops skin redness and blistering after handling insulation foam from a refrigerator. This reaction is most likely caused by:
Answer: Residual blowing agents such as cyclopentane trapped in the foam cells
Cyclopentane and other hydrocarbon blowing agents trapped in polyurethane foam can irritate skin on prolonged contact; proper gloves and respiratory protection are required.
Under OSHA's Hazard Communication Standard (HazCom), which document provides workers with detailed information about chemical hazards, safe handling, and emergency procedures for a specific substance?
Answer: Safety Data Sheet (SDS)
The Safety Data Sheet (SDS) is the OSHA-required document containing 16 standardized sections covering chemical identity, hazards, safe handling, and emergency response.