Which of the following is a potential hazard associated with operating a boiler?

Operating a boiler involves various potential hazards, and the risk of explosions due to overpressure is a significant concern. Boilers operate under high pressure and temperature, and when this pressure exceeds safe limits, it can lead to catastrophic failures. This overpressure can result from several factors, including malfunctioning safety valves, excessive heat input, or operational errors. When pressure builds up to a point beyond what the system can safely handle, the boiler structure can fail, resulting in an explosion that can cause serious injury, extensive property damage, and even loss of life.

Understanding the importance of pressure regulation and the functioning of safety devices is crucial for boiler operators. Proper maintenance and monitoring of pressure levels help mitigate this risk, emphasizing the necessity of adhering to operational guidelines and safety protocols.

The other potential hazards listed, such as corrosion of metal components, insufficient steam production, and overheating of water, are also important considerations in boiler operation. However, they do not carry the same immediate catastrophic risk as explosions due to overpressure, which can occur abruptly and lead to disastrous consequences.