TPC Basic Electricity and Electronics Practice Test

Static electricity accumulates on surfaces and can be discharged suddenly. This discharge can create a spark that has enough energy to ignite flammable materials in the environment.

When considering the effects of static electricity in industrial settings, all three options present valid concerns. Airborne dust can become combustible when dispersed in the air, creating a dust cloud that can ignite with a spark. Flammable liquids and vapors are well-known fire hazards; should static electricity create a spark in their presence, it can lead to dangerous fires or explosions. Additionally, electronic equipment can be damaged by static discharges, but more critically, if conditions are right, those same discharges could ignite flammable materials.

Therefore, acknowledging that static electricity can pose a risk to all of these elements highlights the importance of implementing proper static control measures in industrial environments to ensure safety and minimize the risk of fire and equipment damage.