When QFE is set on subscale what will it indicate;
1. Altitude above aerodrome surface
2. Altitude AMSL
3. Height above aerodrome surface
4. Elevation AMSL
I find it rather worrying that the author of the referenced book obviously thinks that the above is an acceptable way of writing multi-choice answers. Ideally, all the incorrect answers should be plausible but nevertheless demonstrably incorrect, whereas in this example they are just phrased stupidly. In the case of the nearest one to a correct answer (No 3, as you say, Wilco), even that is inaccurate as a definition. In fact, if it is quoted correctly, even the question is wrong (what is "it"?)!
2 s