This is more about day to day operations than emergencies. For an electric plane, your MTOW (max takeoff weight) is equal to your MLW (max landing weight). An ICE plane can take off with "bonus" fuel that it can't land with for structural reasons, while an electric plane can't.

I would hope so, considering this is what it looks like inside. https://en.wikipedia.org/wiki/Rolls-Royce_Trent_1000#/media/...

But. Turbine engine is actually very reliable and doesn't need overhaul for 20,000 flight hours.

The problem here is single-engine planes losing engine on takeoff. Would be almost non-issue with electrics.