ATPLSTUDY Aircraft General Knowledge
ATPL Theory — Aircraft General Knowledge

Master Aircraft Systems for your ATPL theory exam

Free practice questions covering airframe structures, powerplants, electrical systems, hydraulics, pressurisation, flight controls, fuel systems and avionics — with detailed explanations for every answer.

Questions available
12 Topic areas
75% EASA pass mark

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Syllabus Coverage

Topics covered in this question bank

All major AGK topic areas from the EASA ATPL syllabus, aligned with EASA CS-25, UK CAA requirements, and FAA standards where applicable.

Airframe Structures & Construction
Piston & Turbine Powerplants
Electrical Systems (AC/DC, Generators)
Hydraulic Systems & Actuators
Pneumatics & Pressurisation
Primary & Secondary Flight Controls
Landing Gear, Brakes & Anti-skid
Fuel Systems & Management
Ice & Rain Protection
Fire Protection & Detection
Avionics & Integrated Modular Avionics
Environmental Control Systems
EASA Exam Format

What to expect on the real exam

AGK is one of the most technical ATPL subjects, split into two separate written papers: Airframe & Systems, and Powerplant. Both require a solid understanding of how aircraft systems operate and interact with each other.

~80
Questions in exam
75%
Pass mark required
120 min
Exam duration
About This Subject

Why Aircraft General Knowledge matters

AGK covers the design, construction, and operation of every major aircraft system. From understanding why a turbofan bypass ratio affects fuel efficiency, to how hydraulic pressure is maintained during a pump failure — this subject demands both breadth and depth.

For EASA candidates, the syllabus is aligned with CS-25 certification standards. The questions in this bank reflect both the technical depth and the application-style reasoning required in the real exam, including system interactions and failure scenarios.

Sample Question

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AGK — Sample Question

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