Part 66 · Category B1/B2

EASA Part 66 exam preparation — pass on the first attempt

Practice tests and exam questions for every Part 66 module, with instant explanations on every answer and a dashboard that tracks exactly where you stand.

5 free questions in every module — no account needed to start.

17

Study modules

11,542

Practice questions

7

Real past papers

Sample questionModule 8 · Basic Aerodynamics

The angle between the chord line of the wing and the relative airflow is called:

AAngle of attack
BAngle of incidence
CDihedral angle
DSweep angle
Aircraft-maintenance students preparing for their Part 66 exams together

How it works

How you get from studying to passing

No shortcuts — just focused repetition until it sticks. Practise by module, learn from the explanation on every question, track your weak spots on the dashboard, and repeat until you clear the 75% pass mark with room to spare.

01

Practice by module

Work through question banks for every Part 66 module, plus real past exam papers, so you know exactly what to expect on the day.

02

Learn from every answer

Every question comes with an explanation, not just a correct answer — wrong guesses turn into things you actually understand.

03

See where you stand

Your dashboard tracks your best score per module and flags the weak spots, so you always know what to study next.

04

Repeat until it's automatic

Retake modules, watch your score climb past the 75% pass mark, and check the rankings to see how you compare. You practice, you improve, you pass.

NewTimed mock exams

Sit the real exam before the real exam

The new exam simulator recreates the exact EASA Part 66 format for your licence category — the official question count, a live countdown and the 75% pass mark — so nothing on exam day is a surprise.

  • Official EASA question count
  • Live countdown timer
  • 75% pass mark & scoring
  • Full explanations at the end

Included with any subscription.

Module 11 · Aeroplane Aerodynamics

B1
58:12

Question

23 of 140

Question navigator

Answered Flagged To doPass mark 75%

Why Part66Exams

Quality over quantity — answers you can trust

The point of practising isn't to memorise thousands of answers — it's to understand them. Every question in our bank comes with a clear explanation, and real past exam papers show you exactly what the day looks like. You revise against the same 75% pass mark you'll face in the exam hall.

11,542

Practice questions

7

Real past exam papers

100%

Questions with an explanation

75%

Pass mark we track you against

Practice by module

EASA Part 66 practice tests by module

Pick any module and try 5 free questions right away — no account needed. Each comes with the correct answer and an explanation. Subscribe to unlock the full question bank and real exam papers.

Module 1: Mathematics

M1

The numerical foundation every aircraft maintenance engineer relies on — arithmetic, algebra and geometry.

495 questions

Module 2: Physics

M2

The physical principles behind how aircraft and their systems behave — matter, mechanics, heat, light and sound.

650 questions

Module 3: Electrical Fundamentals

M3

A thorough grounding in DC and AC electrical theory — from electron flow, resistance and capacitance to transformers, generators and motors.

849 questions

Module 4: Electronic Fundamentals

M4

The building blocks of aircraft electronics: semiconductors, printed circuit boards and servomechanisms.

370 questions

Module 5: Digital Techniques & Electronic Instrument Systems

M5

Digital and computer-based systems and the electronic instruments they drive — logic circuits, data buses, microprocessors, displays and fibre optics.

560 questions

Module 6: Materials & Hardware

M6

What aircraft are built from and the hardware that holds them together — metals, composites, corrosion, fasteners, bearings and cables.

701 questions

Module 7: Maintenance Practices

M7

The most hands-on of the certifying modules — the workshop, hangar and flight-line skills that turn theory into practice.

1108 questions

Module 8: Basic Aerodynamics

M8

Why aircraft fly — the atmosphere, aerodynamics, theory of flight and flight stability.

652 questions

Module 9: Human Factors

M9

How people — not just machines — affect safe maintenance: performance and limitations, communication, human error and workplace hazards.

321 questions

Module 10: Aviation Legislation

M10

The regulatory framework that governs licences, maintenance organisations and airworthiness — Part-66, Part-145, continuing airworthiness and certification.

593 questions

Module 11: Aeroplane Aerodynamics, Structures and Systems

M11

The big turbine-aeroplane systems module — airframe, flight controls, hydraulics, fuel, landing gear, pressurisation and avionics from nose to tail.

1344 questions

Module 12: Helicopter Aerodynamics, Structures and Systems

M12

The rotary-wing counterpart of Module 11 — rotor aerodynamics, transmissions, vibration analysis and the full range of helicopter systems.

474 questions

Module 13: Aircraft Aerodynamics, Structures and Systems

M13

The B2 avionics view of the whole aircraft — autoflight, communication and navigation, instruments, electrical and the systems an avionics engineer certifies.

933 questions

Module 14: Propulsion

M14

How turbine powerplants and their indicating and starting systems work, from the B2 avionics perspective.

313 questions

Module 15: Gas Turbine Engine

M15

Gas turbine engines end to end — inlet, compressor, combustion, turbine and exhaust, plus the fuel, oil, air, ignition and monitoring systems around them.

1074 questions

Module 16: Piston Engine

M16

Piston aero-engines and their systems — construction, fuel, ignition, cooling, lubrication and installation.

267 questions

Module 17: Propeller

M17

Propeller theory, construction, pitch control, synchronising, ice protection and maintenance.

449 questions

Module 4: Electronic Fundamentals - Real Exam

M4

An actual past EASA Part 66 Module 4 exam paper. The building blocks of aircraft electronics: semiconductors, printed circuit boards and servomechanisms.

69 questions

Module 5: Digital Techniques & Electronic Instrument Systems - Real Exam

M5

An actual past EASA Part 66 Module 5 exam paper. Digital and computer-based systems and the electronic instruments they drive — logic circuits, data buses, microprocessors, displays and fibre optics.

45 questions

Module 6: Materials & Hardware - Real Exam

M6

An actual past EASA Part 66 Module 6 exam paper. What aircraft are built from and the hardware that holds them together — metals, composites, corrosion, fasteners, bearings and cables.

120 questions

Module 7: Maintenance Practices - Real Exam

M7

An actual past EASA Part 66 Module 7 exam paper. The most hands-on of the certifying modules — the workshop, hangar and flight-line skills that turn theory into practice.

75 questions

Module 8: Basic Aerodynamics - Real Exam

M8

An actual past EASA Part 66 Module 8 exam paper. Why aircraft fly — the atmosphere, aerodynamics, theory of flight and flight stability.

20 questions

Module 9: Human Factors - Real Exam

M9

An actual past EASA Part 66 Module 9 exam paper. How people — not just machines — affect safe maintenance: performance and limitations, communication, human error and workplace hazards.

20 questions

Module 10: Aviation Legislation - Real Exam

M10

An actual past EASA Part 66 Module 10 exam paper. The regulatory framework that governs licences, maintenance organisations and airworthiness — Part-66, Part-145, continuing airworthiness and certification.

40 questions

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