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UK Part-66 Module 3 Electrical Fundamentals — B1.1 — Information & Free Practice

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About UK Part-66 Module 3 Electrical Fundamentals — B1.1

UK Part-66 Module 3 Electrical Fundamentals — B1.1 · GB

Key exam facts

Provider
UK Civil Aviation Authority sets the UK Part-66 standard; examinations are conducted by the CAA or an appropriately approved UK Part-147 training organisation.
Format
Full initial B1.1 Module 3 knowledge examination: multiple-choice, three alternatives with one correct answer; no essay or practical component. CAA delivery uses its e-Exam service.
Exam questions
Total questions: 52.
Time limit
65 minutes of examination time; CAA venue arrival is at least 30 minutes before the scheduled examination.
Passing score
75% for the module multiple-choice examination; no penalty marking.
Exam fee
CAA AML examination: £60.00 (GBP) per examination. This is the CAA delivery fee, not a claim about independent UK Part-147 providers' charges.

Topics covered

  • Electron Theory

  • Static Electricity and Conduction

  • Electrical Terminology

  • Generation of Electricity

  • DC Sources of Electricity

  • DC Circuits

  • Resistance/Resistor

    • (a) Resistance and affecting factors; Specific resistance; Resistor colour code, values and tolerances, preferred values, wattage ratings; Resistors in series and parallel; Calculation of total resistance using series, parallel and series parallel combinations; Operation and use of potentiometers and rheostats; Operation of Wheatstone Bridge;
    • (b) Positive and negative temperature coefficient conductance; Fixed resistors, stability, tolerance and limitations, methods of construction; Variable resistors, thermistors, voltage dependent resistors; Construction of potentiometers and rheostats; Construction of Wheatstone Bridge.

  • Power

  • Capacitance/Capacitor

  • Magnetism

    • (a) Theory of magnetism; Properties of a magnet; Action of a magnet suspended in the Earth’s magnetic field; Magnetisation and demagnetisation; Magnetic shielding; Various types of magnetic material; Electromagnets construction and principles of operation; Hand clasp rules to determine: magnetic field around current carrying conductor;
    • (b) Magnetomotive force, field strength, magnetic flux density, permeability, hysteresis loop, retentivity, coercive force reluctance, saturation point, eddy currents; Precautions for care and storage of magnets.

  • Inductance/Inductor

  • DC Motor/Generator Theory

  • AC Theory

  • Resistive (R), Capacitive (C) and Inductive (L) Circuits

  • Transformers

  • Filters

  • AC Generators

  • AC Motors

How to prepare

Work through the topics, read the explanation after each answer, and revisit the areas where you miss questions. Use the official outline and reference materials below to guide your study.

These independent practice questions are not actual exam items and do not guarantee a passing result.

Frequently asked questions

What is the exam format?

Full initial B1.1 Module 3 knowledge examination: multiple-choice, three alternatives with one correct answer; no essay or practical component. CAA delivery uses its e-Exam service.

How many questions are on the exam?

Total questions: 52.

How long is the exam?

65 minutes of examination time; CAA venue arrival is at least 30 minutes before the scheduled examination.

What is the passing score?

75% for the module multiple-choice examination; no penalty marking.

How much does the exam cost?

CAA AML examination: £60.00 (GBP) per examination. This is the CAA delivery fee, not a claim about independent UK Part-147 providers' charges.

Official sources and references

Confirm current exam arrangements with the exam provider.