Ignition system of gas turbine engines.
What is the answer of the following question?
I think a) is right answer but the book says the answer is b).
Is that right?
The book is Oxford JAA ATPL - Powerplant
A gas turbine engine which has both high and low energy ignition systems uses the high energy system for (i), and the low energy system for (ii):
(i) / (ii)
a) Engine starting / High altitude relighting
b) High altitude relighting / Take off from contaminated runways
c) Take off from snowy runways / Engine start
d) Take off from flooded runways / Take off from snowy runways.