The interviewer didnīt say which area of the world or airspace, no details about it.
I think that he wanted to see your knowledge developing different answeres and possibilities...off route, not, etc
It was also a question to get a position of Captain.
I was confusing the meaning, the concept of Escape Route. Thanks everybody for your help.
Regarding the answer...Also, do not be in a rush because the plane will not descend until the plane speed has reached Driftdown speed as the target. So , you would have time to contact ATC and declare emergency before starting your descent, bearing in mind you could be in a Reduced Vertical Separation Minimum airspace...so many scenarios, so that ATC would have time to separate traffics...
Have nice flights
