UK CAA Part-66 Module 4 Electronic Fundamentals (B1.1) — Information & Free Practice
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About UK CAA Part-66 Module 4 Electronic Fundamentals (B1.1)
UK CAA Part-66 Module 4 Electronic Fundamentals (B1.1) · GB
Key exam facts
- Provider
- UK Civil Aviation Authority (CAA) sets the UK Part-66 standard. Examinations are conducted by the CAA or a suitably approved UK Part-147 maintenance training organisation.
- Format
- Supervised knowledge examination: 20 multiple-choice questions, each with three alternative answers and one correct answer; no essay questions. CAA delivery uses its e-Exams system. This practice bank uses four options.
- Exam questions
- Total questions: 20.
- Time limit
- 25 minutes of answering time. CAA candidates must arrive at least 30 minutes before the scheduled examination; arrival time is additional.
- Passing score
- 75% for the module multiple-choice examination; penalty marking is not used.
- Exam fee
- GBP £60 for each attempt at a written module or part-module examination conducted by the CAA, under ORS5 No. 446 effective 1 April 2026. The same per-attempt charge applies to resits; this is the CAA delivery fee, not a quoted Part-147 provider fee.
Topics covered
Semiconductors
- Diodes — paragraph (a), B1 Level 2
- Transistors — paragraph (a), B1 Level 1
- Integrated Circuits — paragraph (a), B1 Level 1
Printed Circuit Boards — B1 Level 1
Servomechanisms — paragraph (a), B1 Level 1
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?
Supervised knowledge examination: 20 multiple-choice questions, each with three alternative answers and one correct answer; no essay questions. CAA delivery uses its e-Exams system. This practice bank uses four options.
How many questions are on the exam?
Total questions: 20.
How long is the exam?
25 minutes of answering time. CAA candidates must arrive at least 30 minutes before the scheduled examination; arrival time is additional.
What is the passing score?
75% for the module multiple-choice examination; penalty marking is not used.
How much does the exam cost?
GBP £60 for each attempt at a written module or part-module examination conducted by the CAA, under ORS5 No. 446 effective 1 April 2026. The same per-attempt charge applies to resits; this is the CAA delivery fee, not a quoted Part-147 provider fee.
Official sources and references
- UK Part-66 Appendix I — Basic Knowledge Requirements
Appendix I, Module 4, B1 column
- UK Part-66 Appendix I — Basic Knowledge Requirements
Appendix I, Module 4 heading
- UK Part-66 Appendix II — Basic Examination Standard
Appendix II, 2.4, Category B1
- UK Part-66 Appendix II — Basic Examination Standard
Appendix II, 1.2
- UK Part-66 Appendix II — Basic Examination Standard
Appendix II, 1.7
- UK Regulation (EU) No 1321/2014 — Continuing Airworthiness
66.A.25(a), printed page 630
- ORS5 No. 446 — CAA Scheme of Charges: Personnel Licensing
Section 12.1, table 60(f), page 42
- CAA aircraft maintenance licence examinations
UK CAA Examinations AML
- CAA aircraft maintenance licence exam timetable
Gatwick, UK — 2026 and 2027 timetable
- UK Part-66 Appendix II — Basic Examination Standard
Appendix II, 1.10
- CAA aircraft maintenance licence examinations
Important examination information
- ORS5 No. 446 — CAA Scheme of Charges: Personnel Licensing
Commencement, page 1
Confirm current exam arrangements with the exam provider.