I seem to say this on every second post nowadays, but Sleepybhudda Google is your friend.
https://www.skybrary.aero/index.php/Critical_Engine
As both Aerocat and myself have tried to say, this is
not type specific knowledge but is knowledge gained during your initial multi-engine flight training. It is akin to knowing the secondary effect of flight controls.
Clandestino, do you realize in your previous post you gave the exact definition of a critical engine, thus invalidating your whole post?
There is a critical engine on both the ATR and the Dash. It is the #1/left engine.
Just because the handling qualities during a failure of the critical engine are offset by the design of the fin and the rudder and thus typically imperceptible to the pilot, does not mean the critical engine does not exist. If it did not, the manufacturer would not have to make design considerations for it.