EASA Part66 Exam: Number of Questions Per Module
New to the licence? Start with our EASA Part 66 overview — the modules, categories and exam format explained.
Information on this page is based on Commission Implementing Regulation (EU) 2023/989, Appendix II (Examination Standard). View full regulation.
1. Mathematics
Category A: 16 multi-choice questions, 20 minutes.
Category B1, B2, B2L, B3: 32 multi-choice questions, 40 minutes.
2. Physics
Category A, B3: 32 multi-choice questions, 40 minutes.
Category B1, B2, B2L: 52 multi-choice questions, 65 minutes.
3. Electrical Fundamentals
Category A: 20 multi-choice questions, 25 minutes.
Category B3: 24 multi-choice questions, 30 minutes.
Category B1, B2, B2L: 52 multi-choice questions, 65 minutes.
4. Electronic Fundamentals
Category B1, B3: 20 multi-choice questions, 25 minutes.
Category B2, B2L: 40 multi-choice questions, 50 minutes.
5. Digital Techniques, Electronic Instrument Systems
Category A, B3: 20 multi-choice questions, 25 minutes.
Category B1: 40 multi-choice questions, 50 minutes.
Category B2, B2L: 72 multi-choice questions, 90 minutes.
6. Materials and Hardware
Category A: 52 multi-choice questions, 65 minutes.
Category B1, B3: 80 multi-choice questions, 100 minutes.
Category B2, B2L: 60 multi-choice questions, 75 minutes.
7. Maintenance Practices
Category A: 76 multi-choice and 2 essay questions, 95 minutes plus 40 minutes.
Category B1, B3: 80 multi-choice and 2 essay questions, 100 minutes plus 40 minutes.
Category B2, B2L: 60 multi-choice and 2 essay questions, 75 minutes plus 40 minutes.
8. Basic Aerodynamics
Category A, B1, B2, B2L, B3: 24 multi-choice questions, 30 minutes.
9. Human Factors
Category A, B1, B2, B2L, B3: 28 multi-choice questions, 35 minutes.
10. Aviation Legislation
Category A: 32 multi-choice questions, 40 minutes.
Category B1, B2, B2L, B3: 44 multi-choice questions, 55 minutes.
11. Aeroplane Aerodynamics, Structures and Systems
Category A1: 108 multi-choice questions, 135 minutes.
Category A2: 72 multi-choice questions, 90 minutes.
Category B1.1: 140 multi-choice questions, 175 minutes.
Category B1.2: 100 multi-choice questions, 125 minutes.
Category B3: 60 multi-choice questions, 75 minutes.
12. Helicopter Aerodynamics, Structures and Systems
Category A3, A4: 100 multi-choice questions, 125 minutes.
Category B1.3, B1.4: 128 multi-choice questions, 160 minutes.
13. Aircraft Aerodynamics, Structures and Systems
Category B2: 188 multi-choice questions, 235 minutes.
Questions and time allowed may be split into two examinations as appropriate.
Category B2L (by system rating):
Basic: 20 multi-choice questions, 25 minutes.
COM/NAV: 40 multi-choice questions, 50 minutes.
Instruments: 52 multi-choice questions, 65 minutes.
Autoflight: 28 multi-choice questions, 35 minutes.
Surveillance: 28 multi-choice questions, 35 minutes.
Airframe Systems: 40 multi-choice questions, 50 minutes.
14. Propulsion
Category B2, B2L: 32 multi-choice questions, 40 minutes.
B2L applies to Instruments and Airframe Systems ratings only.
15. Gas Turbine Engine
Category A1, A3: 60 multi-choice questions, 75 minutes.
Category B1.1, B1.3: 92 multi-choice questions, 115 minutes.
16. Piston Engine
Category A2, A4: 52 multi-choice questions, 65 minutes.
Category B1.2, B1.4, B3: 76 multi-choice questions, 95 minutes.
17. Propeller
Category A1, A2: 20 multi-choice questions, 25 minutes.
Category B1.1, B1.2, B3: 32 multi-choice questions, 40 minutes.