Which statement about using hose streams on a transformer fire is correct?

The correct statement regarding the use of hose streams on a transformer fire is that the application of water may cause splashing and spread of toxic liquids. When dealing with transformer fires, which often involve electrical components and potentially hazardous materials, water application can indeed lead to unintended consequences.

Transformers may contain oils or other flammable liquids that can become airborne or spread if water is applied inappropriately. This splashing could create a wider hazard by dispersing these toxic substances in the environment, posing risks to both firefighters and bystanders. Consequently, understanding the properties of the materials involved and the dynamics of water interaction with these substances is critical in fire suppression tactics for transformer fires.

In contrast, other statements do not accurately reflect the best practices for dealing with transformer fires. For example, while applying water in short bursts, cooling but not extinguishing the fire, or using a wide-angle fog stream might seem like valid strategies, they do not specifically address the risks of toxic material spread and may not be as effective in ensuring safety during operation. The unique challenges presented by electrical hazards and combustible materials in transformer fires necessitate a focus on preventing the unintended consequences of water application, making the correct statement about splashing and spreading toxic liquids particularly relevant and critical for firefighter safety