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Free EASA Module 3 Exam Prep

EASA Part-66 Module 03 - Electrical Fundamentals

Prepare for the EASA Module 3 exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.

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EASA Module 3 Quick Facts

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4-8 weeks of part-time study before sitting the exam

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Free EASA Module 3 Prep Tools

100 Practice Questions

Covers Ohm's law, Kirchhoff's laws, resistor colour codes, capacitance, magnetism, inductance, AC theory and transformers with worked explanations

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Get step-by-step help on Ohm's law and power calculations, the Wheatstone bridge, RC/LR time constants and RLC resonance

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What You'll Study

7 chapters covering the exam topics in this guide

EASA Module 3 Exam Details

EASA Part-66 Module 03 - Electrical Fundamentals

Administered by EASA (exams sat at National Aviation Authorities or approved Part-147 organisations)

Official Source
75%
Passing Score
52
Questions
65
Minutes
Varies by NAA/Part-147 organisation (approx. EUR 50-230 per module sitting)
Exam Fee
Study time: 60-90 hours of focused study
Prerequisites: None formally, but basic algebra and SI units are assumed; part of an approved Part-147 or self-study route to a B1/B2 licence
Valid for: Examination credit valid 10 years toward the Part-66 licence

Exam Content Breakdown

Based on the official EASA (exams sat at National Aviation Authorities or approved Part-147 organisations) content outline

Electron Theory, Static Electricity & GenerationNot published

Atomic structure, conductors/semiconductors/insulators, electrostatic laws and Coulomb's law, electrical terminology (EMF, PD, conventional vs electron flow), and methods of generating electricity (heat, light, pressure, friction, chemical, magnetism)

DC Sources of ElectricityNot published

Primary and secondary cells, lead-acid and nickel-cadmium batteries, electrolytes and specific gravity, cells in series and parallel, internal resistance and terminal voltage, thermocouples and photocells

DC Circuits - Ohm's & Kirchhoff's LawsNot published

Ohm's law calculations, Kirchhoff's current and voltage laws, series and parallel circuits, the voltage divider, and combined network analysis

Resistance, Resistors & PowerNot published

Resistor colour code and tolerances, resistivity and temperature coefficient, thermistors and potentiometers, the Wheatstone bridge, and power/energy calculations (P = VI, I-squared-R, V-squared/R)

Capacitance & CapacitorsNot published

Capacitance C = Q/V, factors affecting capacitance and dielectrics, capacitors in series and parallel, RC time constant and charging/discharging, stored energy and working-voltage ratings

Magnetism, Inductance & DC MachinesNot published

Magnetic fields, reluctance and hysteresis, electromagnetism and the right-hand rule, Faraday's and Lenz's laws, self and mutual inductance, the LR time constant, and DC motor/generator theory including back EMF and commutation

AC Theory, Transformers, Filters & MachinesNot published

Sinusoidal RMS/average/peak values, frequency and 400 Hz aircraft AC, RLC phase relationships, reactance and resonance, transformers and core losses, filters, and single/three-phase AC generators and motors

What's Included

7 Chapters

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What's Next After the EASA Module 3?

After passing the EASA Module 3, you can pursue these career paths

EASA Part-66 Module 04 - Electronic Fundamentals

Builds on Module 3 to cover semiconductors, printed circuit boards and servomechanisms

Coming Soon

EASA Part-66 Module 13 - Aircraft Aerodynamics, Structures and Systems (B2)

Applies electrical fundamentals to avionic and electrical aircraft systems

Coming Soon

EASA Part-66 Module 07 - Maintenance Practices

Standard wiring, soldering and electrical maintenance practices used by B1/B2 technicians

Coming Soon

EASA Module 3 Exam FAQ

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