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Practice / B1.1 / Module 7 / Electrical wiring interconnection system (EWIS): sub-module drill

Module 7 (B1.1): Electrical wiring interconnection system (EWIS): sub-module drill

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Career and licence

How to Become a Licensed Aircraft Engineer
Converting Between UK CAA and EASA Part-66 Licences
How to Apply for Your Part-66 Aircraft Maintenance Licence
How to Become a B1 Licensed Aircraft Engineer
Part-66 Experience Requirements (66.A.30) Explained
How Much Does a Part-66 Licence Cost?
Renewing Your Part-66 Licence
Self-Studying for Part-66: A Practical Plan
Part-66 Type Ratings and Aircraft Groups

Exam rules

EASA vs UK CAA Part-66: What Is Different in 2026
How to Book UK CAA Part-66 Module Exams
Part-66 Essay Questions: How They Are Marked and How to Pass
Part-66 Exam Format: Questions, Timing and the 75% Pass Mark
Part-66 Module Exams: How They Work in 2026
Part-66 Resit Rules: How Many Attempts and How Long to Wait

Licence categories

The Part-66 B1 Licence: Modules, Exams and Experience
B1 vs B2: Comparing the Part-66 Mechanical and Avionics Licences
The Part-66 B2 Avionics Licence Explained
The Part-66 B2L Licence and Its System Ratings
The Part-66 B3 Licence for Light Piston Aeroplanes
Part-66 Category A Licence (A1 to A4) Guide
Part-66 Licence Categories Explained

Module exams

Part-66 Module 1 Mathematics Questions and Practice Paper
Part-66 Module 10 Aviation Legislation Questions
Part-66 Module 11 Questions: Aeroplane Structures and Systems
Part-66 Module 12 Helicopter Questions and Practice Paper
Part-66 Module 13 Questions for B2 and B2L
Part-66 Module 14 Propulsion Questions (B2 and B2L)
Part-66 Module 15 Gas Turbine Engine Questions
Part-66 Module 16 Piston Engine Questions
Part-66 Module 17 Propeller Questions
Part-66 Module 2 Physics Questions and Practice Paper
Part-66 Module 3 Electrical Fundamentals Questions
Part-66 Module 4 Electronic Fundamentals Questions
Part-66 Module 5 Digital Techniques Questions
Part-66 Module 6 Materials and Hardware Questions
Part-66 Module 7 Maintenance Practices Questions and Papers
Part-66 Module 8 Basic Aerodynamics Questions
Part-66 Module 9 Human Factors Questions and Practice Paper
Part-66 Modules 1 to 17: The Complete Guide
Part-66 Past Papers, Question Banks and PDFs: The Honest Guide

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