Ok how about this;
What does MP indicate?
Which engine control/s effect mixture?
Which engine control controls power from 0-100%.
First action after complete/sudden power loss?
Gotta agree that not knowing the emergency auto gear lowering system in an Arrow is pretty bad...have an engine failure and suddenly the gear goes down doing awful things to glide ratio....and when no knowledge of said system is evident just crash I guess.
At the big end of town the amount they want us to know about systems in the Boeings etc is truly scary...virtually nothing...driven it seems by product liability concerns...don't think just do what we tell you too in the QRH.
Perhaps that mentality has trickled down to GA?