Which of the following is an example of stored electrical energy hazard?

• A. Stored energy in capacitors or springs.
• B. A dirty gasket.
• C. Worn paint.
• D. Airflow issues.

Answer: (D)

Stored electrical energy hazards come from components that can still hold a charge after power is removed, so they can release dangerous energy suddenly if touched or shorted. The classic example is capacitors that remain charged in power circuits or UPS systems; even with the power off, these capacitors can discharge through you if you don’t properly isolate and discharge them first. That’s why the emphasis is on devices that store electrical energy and can release it unexpectedly.

The other options describe issues like contamination, surface condition, or cooling problems. A dirty gasket, worn paint, or airflow problems aren’t about stored electrical energy—they’re unrelated hazards (chemical, physical condition, or thermal/airflow concerns), even though they might contribute to other risks in a mechanism or enclosure.