What is one potential hazard when working with boilers?

In the context of working with boilers, the potential hazard involving burns from hot surfaces and steam is particularly significant due to the nature of boiler operation. Boilers generate high temperatures to produce steam or hot water, and both the exterior surfaces of the boiler and the steam itself can pose serious burn risks.

When a boiler is in operation, the components can become extremely hot, reaching temperatures that can cause severe burns upon contact. Additionally, steam, which is often used as a medium for heat transfer, can cause burns if it escapes or if there is a leak. It's crucial for workers to take appropriate precautions, such as wearing personal protective equipment and being aware of their surroundings, to mitigate this risk.

While other options present valid hazards associated with boilers, such as the risk of explosions from pressure build-up or electrical shocks from components, the immediate and direct nature of burns from hot surfaces and steam often makes it a more prevalent concern, particularly during routine operations and maintenance of the equipment. This understanding emphasizes the importance of safety measures and training in handling boilers effectively.