Can the flight envelope be described by a diagram?

Question

Question EASA Drone Quiz - Flight performance and planning

QuizVDS · Accepted Answer

Yes, but only for manned aircraft

QuizVDS · Answer

There are no flying machines lighter than air

QuizVDS · Answer

True, but only for UAS

QuizVDS · Answer

Yes, but only in the case of a single engine

Id 3 - EASA Drone Quiz – Drone Pilot Certification - Can the flight envelope be described by a diagram?