Which statement about low-voltage systems is supported by the material?

• A. They are totally safe
• B. They are not totally safe
• C. They are always safe
• D. They require no protection

Answer: (B)

Low-voltage systems reduce the risk compared to higher voltages, but they are not totally safe. The important idea here is that danger isn’t eliminated simply because the voltage is labeled “low.” If insulation is damaged, components fail, moisture is present, or someone works with exposed conductors, current can still flow through a person or cause overheating, arcing, or fires. That’s why proper protections—insulation, enclosures, barriers, protective devices like fuses or breakers, grounding where applicable, and safe work practices—are essential. In other words, safety is about precautions and controls, not a guarantee of safety just because the voltage is low. So the statement that aligns with the material is that they are not totally safe.