EASA and UK Part-66 · B1.1 and B1.2

Every answer explained, with its source.

Part 66 Module Prep helps you prepare for the multiple-choice part of the Part-66 basic knowledge module exams for the B1.1 (turbine aeroplanes) and B1.2 (piston aeroplanes) aircraft maintenance licence, under the EASA rules or the UK rules.

See the modules Help
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  • In English

Not affiliated with or endorsed by EASA, the European Union or the UK Civil Aviation Authority. Practice questions are original or adapted from FAA public-domain material, with explanations quoting public documents.

What the rules say

“Each multi-choice question shall have three alternative answers of which only one shall be the correct answer and the candidate shall be allowed a time per module which is based upon a nominal average of 75 seconds per question.”
Part-66 Appendix II, point 1.2 (Regulation (EU) No 1321/2014; same text in the UK version)
“The pass mark for each module and sub-module multi-choice part of the examination is 75 %.”
Part-66 Appendix II, point 1.7 (Regulation (EU) No 1321/2014; same text in the UK version)
Mock exams in the app follow these rules: 3 options per question, 75 seconds per question, 75% to pass.

1,834

practice questions, each with a quoted source

4

licences: EASA or UK, B1.1 or B1.2

75 s

per question in timed mock exams

75%

to pass, as in Part-66 Appendix II

Choose your licence

Four licences, each with its own modules.

Each mock exam has the number of questions set for that module, with 75 seconds per question. Topics follow the Part-66 Appendix I syllabus for your licence.

EASA B1.1EASA Part-66 · B1.1 (turbine aeroplanes)13 modules
Mock exam format for each module, EASA Part-66 · B1.1 (turbine aeroplanes)
ModuleQuestionsTime
Module 1 · Mathematics3240 min
Module 2 · Physics5265 min
Module 3 · Electrical Fundamentals5265 min
Module 4 · Electronic Fundamentals2025 min
Module 5 · Digital Techniques / Electronic Instrument Systems4050 min
Module 6 · Materials and Hardware80100 min
Module 7 · Maintenance Practices  (also has essay questions in the exam)80100 min
Module 8 · Basic Aerodynamics2430 min
Module 9 · Human Factors2835 min
Module 10 · Aviation Legislation4455 min
Module 11 · Aeroplane Aerodynamics, Structures and Systems140175 min
Module 15 · Gas Turbine Engine92115 min
Module 17 · Propeller3240 min

13 modules · 716 exam questions in total.

EASA B1.2EASA Part-66 · B1.2 (piston aeroplanes)13 modules
Mock exam format for each module, EASA Part-66 · B1.2 (piston aeroplanes)
ModuleQuestionsTime
Module 1 · Mathematics3240 min
Module 2 · Physics5265 min
Module 3 · Electrical Fundamentals5265 min
Module 4 · Electronic Fundamentals2025 min
Module 5 · Digital Techniques / Electronic Instrument Systems4050 min
Module 6 · Materials and Hardware80100 min
Module 7 · Maintenance Practices  (also has essay questions in the exam)80100 min
Module 8 · Basic Aerodynamics2430 min
Module 9 · Human Factors2835 min
Module 10 · Aviation Legislation4455 min
Module 11 · Aeroplane Aerodynamics, Structures and Systems100125 min
Module 16 · Piston Engine7695 min
Module 17 · Propeller3240 min

13 modules · 660 exam questions in total.

UK B1.1UK Part-66 · B1.1 (turbine aeroplanes)13 modules
Mock exam format for each module, UK Part-66 · B1.1 (turbine aeroplanes)
ModuleQuestionsTime
Module 1 · Mathematics3240 min
Module 2 · Physics5265 min
Module 3 · Electrical Fundamentals5265 min
Module 4 · Electronic Fundamentals2025 min
Module 5 · Digital Techniques / Electronic Instrument Systems4050 min
Module 6 · Materials and Hardware7290 min
Module 7A · Maintenance Practices  (also has essay questions in the exam)80100 min
Module 8 · Basic Aerodynamics2025 min
Module 9A · Human Factors  (also has essay questions in the exam)2025 min
Module 10 · Aviation Legislation (UK)  (also has essay questions in the exam)4050 min
Module 11A · Turbine Aeroplane Aerodynamics, Structures and Systems140175 min
Module 15 · Gas Turbine Engine92115 min
Module 17 · Propeller3240 min

13 modules · 692 exam questions in total.

UK B1.2UK Part-66 · B1.2 (piston aeroplanes)13 modules
Mock exam format for each module, UK Part-66 · B1.2 (piston aeroplanes)
ModuleQuestionsTime
Module 1 · Mathematics3240 min
Module 2 · Physics5265 min
Module 3 · Electrical Fundamentals5265 min
Module 4 · Electronic Fundamentals2025 min
Module 5 · Digital Techniques / Electronic Instrument Systems2025 min
Module 6 · Materials and Hardware7290 min
Module 7A · Maintenance Practices  (also has essay questions in the exam)80100 min
Module 8 · Basic Aerodynamics2025 min
Module 9A · Human Factors  (also has essay questions in the exam)2025 min
Module 10 · Aviation Legislation (UK)  (also has essay questions in the exam)4050 min
Module 11B · Piston Aeroplane Aerodynamics, Structures and Systems100125 min
Module 16 · Piston Engine7290 min
Module 17 · Propeller3240 min

13 modules · 612 exam questions in total.

The exam for this module also has essay questions (EASA module 7; UK modules 7A, 9A and 10). This app covers the multiple-choice questions only.

In the app

Practice, mock exams and review.

Study

  • Practise by module and by syllabus topic of Part-66 Appendix I.
  • Choose your licence: EASA B1.1, EASA B1.2, UK B1.1 or UK B1.2. Each shows only its own modules and topics.
  • Every answer comes with an explanation and its source: a quoted sentence from a public document, with the document and page or rule number.
  • Module 10 has separate question sets for EU law (EASA Easy Access Rules) and UK law (legislation.gov.uk).

Test yourself

  • Timed mock exams with the module question counts of Part-66 Appendix II: three options per question, 75 seconds per question, 75% to pass.
  • Flag questions, jump to any question, and review every answer after you submit.

Remember more

  • Questions you miss come back in a review list until you get them right on different days.
  • See how many questions you know in each module.

Study anywhere

  • Works offline. No account needed.
  • Report a problem with any question from the app.

Sources

Public documents only.

EASA and the UK CAA do not publish exam questions. Every question here was written or adapted by us. The exam can include topics this app covers lightly or not at all. A few syllabus topics have no questions yet because no public source covers them.

  • FAA handbooks (FAA-H-8083 series)Public domain (U.S. Government work).
  • EASA Easy Access Rules for Continuing Airworthiness (Regulation (EU) No 1321/2014)© European Union, https://eur-lex.europa.eu — reuse permitted under Commission Decision 2011/833/EU. Source: European Union Aviation Safety Agency (EASA).
  • EASA Easy Access Rules for Initial Airworthiness (Regulation (EU) No 748/2012)© European Union, https://eur-lex.europa.eu — reuse permitted under Commission Decision 2011/833/EU. Source: European Union Aviation Safety Agency (EASA).
  • EASA Easy Access Rules for Air Operations (Regulation (EU) No 965/2012)© European Union, https://eur-lex.europa.eu — reuse permitted under Commission Decision 2011/833/EU. Source: European Union Aviation Safety Agency (EASA).
  • EASA Easy Access Rules for the Basic Regulation (Regulation (EU) 2018/1139)© European Union, https://eur-lex.europa.eu — reuse permitted under Commission Decision 2011/833/EU. Source: European Union Aviation Safety Agency (EASA).
  • EASA Easy Access Rules for Information Security© European Union, https://eur-lex.europa.eu — reuse permitted under Commission Decision 2011/833/EU. Source: European Union Aviation Safety Agency (EASA).
  • Regulations (EU) No 1321/2014, 748/2012, 965/2012 and (EU) 2018/1139 as they apply in the United Kingdom (legislation.gov.uk)Contains public sector information licensed under the Open Government Licence v3.0.

Not released yet

Part 66 Module Prep is being prepared for iPhone, iPad and Android.

Questions or feedback? Write to dys0707y@gmail.com.