What safety inspections are required before starting a boiler?

The required safety inspections before starting a boiler include checking water levels, automatic controls, and safety devices. This is essential because the proper functioning of these elements is crucial for the safe operation of a boiler.

Water levels must be within an acceptable range to prevent situations such as low-water conditions, which can lead to overheating and potential boiler failure. Automatic controls ensure that the boiler operates efficiently and safely, regulating temperature and pressure, and responding to any fluctuations that could indicate a malfunction. Safety devices, such as pressure relief valves, are critical for preventing dangerous pressure build-up within the boiler, which could lead to catastrophic failures or explosions if not properly managed.

While it's certainly important to be vigilant about leaks, corrosion, inspecting the environment, and fuel quality, these factors are part of general maintenance and operational checks rather than the specific crucial safety inspections needed immediately before starting the boiler. Ensuring the operational safety of the key components directly related to the boiler's function is what makes this option the most correct in this context.