Greetings! In this article I recommend that you familiarize yourself with the main safety devices of auxiliary boiler on a ship that inspectors like to check. It does not matter which inspector came to the ship (PSC, flag, annual surveyor, etc.), usually the checks are not much different.
Surveyors mainly look at how critical protections work (selectively), i.e. those protections that stop the boiler (shutdown protection). They are not very concerned with auxiliary signals (alarms). But it is necessary to be prepared for everything, i.e. for the fact that the inspector can check the auxiliary alarms of the boiler.