How does the bomb work in the Wentward?

So I found the little bomb that flashes 35 on the bus (assuming that you need to stay above 35) but when below 35 it still does not blow up, anyone know how to blow it up? or is it just for show?

 

Its is for the bus campaign, the part is just a prop. The scripts in the map do the work.

 

There is app where you can disassembly all parts, break all connections, set on fire, puncture all tires etc. I think this is simple script that just trigger disassembly and set on fire entire bus or specific parts.