Aviation Knowledge and Physics Knowledge are different animals from the reasoning games elsewhere in this course. There's no puzzle to work through from the stem — these are recall tests: aircraft systems, instruments, navigation, meteorology and air law on one side, mechanics, electricity, optics, thermodynamics and waves on the other. You either know that a METAR's third group gives wind direction and speed, or you don't; you either remember why a dark object radiates heat faster than a light one, or you don't. No amount of clever reasoning under time pressure substitutes for having the material in your head already.
Why airlines test it
Some selections — notably DLR and ADAPT — test baseline knowledge because it predicts ground-school performance: a cadet who arrives with high-school physics and rudimentary aviation theory already in place absorbs the first months of type and ATPL training faster than one starting from zero, and struggles less through it. It isn't really testing whether you can become a pilot — reasoning aptitude and psychomotor skill matter more for that — it's testing whether you'll sink or swim once ground school actually begins.
In the cockpit
Everything ground school teaches becomes the layer underneath what you do in the cockpit, and it stays load-bearing long after the exam: knowing why an aircraft stalls at a higher speed in a bank, how a VOR radial works, what a METAR's cloud group actually tells you, or why static charge builds on a fuel line during refuelling. None of it is trivia — it's the reasoning substrate a pilot draws on constantly, usually without noticing.
For example: you're briefed for an approach into an airport reporting OVC008 in the METAR, with a TEMPO group forecasting the ceiling dropping further during your arrival window. Reading that correctly — an overcast layer at 800 feet, with a temporary deterioration possible — and weighing it against your aircraft's approach minima isn't a reasoning puzzle worked out on the spot, it's recalled aviation knowledge applied instantly. That instant recall is exactly what ground school is meant to produce.
How to practise
Practise with Aviation Knowledge, which covers principles of flight, aircraft systems, instruments, navigation, meteorology and air law, and Physics Knowledge, which covers mechanics, electricity and magnetism, optics, thermodynamics and waves. Because both are genuine knowledge tests rather than reasoning puzzles, the useful preparation looks different from the rest of this course: after every attempt, work through the review, note down what you missed, and go and actually learn the fact or principle rather than just drilling the format — repetition only helps once the underlying knowledge is there to retrieve.
The Air France cadet pre-selection sets an aeronautical general-knowledge paper, recreated as ENAC Aeronautical General Knowledge: forty-eight questions with four options, the count changing from one sitting to the next, at eight seconds each, and the clock moves on whether you answered or not. Ten subjects, and ground school and world geography carry far more of the paper than the fleet trivia everyone revises. The Air France course sets it in its stage.