CAAS SAR-66 M05 Digital Techniques / Electronic Instrument Systems (Category B2) — Information & Free Practice

About CAAS SAR-66 M05 Digital Techniques / Electronic Instrument Systems (Category B2)

CAAS SAR-66 M05 Digital Techniques / Electronic Instrument Systems (Category B2) · SG

Key exam facts

Provider

Civil Aviation Authority of Singapore (CAAS); delivered by Aspeq.

Format

Computer-based multiple-choice knowledge examination; three answers per question, only one correct.

Exam questions

Total questions: 72.

Time limit

90 minutes (Category B2 M05 answer time).

Passing score

75%; no penalty marking on multiple-choice papers.

Exam fee

SGD 87.20 per AML examination paper from 1 January 2026 under ANO Twelfth Schedule paragraph 11(a); GST-inclusive.

Topics covered

• Electronic Instrument Systems

• Numbering Systems

• Data Conversion

• Data Buses

• Logic Circuits

• Basic Computer Structure

• Microprocessors

• Integrated Circuits

• Multiplexing

• Fibre Optics

• Electronic Displays

• Electrostatic Sensitive Devices

• Software Management Control

• Electromagnetic Environment

• Typical Electronic / Digital Aircraft Systems

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

Official sources and references

• CAAS SAR-66 Basic Examinations

  Appendix A, pp. 15–17

• CAAS SAR-66 Basic Examinations

  pp. 1–3, 15–17

• Singapore Airworthiness Requirements Part 66

  Appendix 2, 1.2–1.5

• fee-amendment.html

  paragraphs 1 and 2(f)

• gst.pdf

  p.1, paragraph 2 table

• contact.html

  CAAS Examinations Centre

• exam-portal.html

  Home

• CAAS SAR-66 Basic Examinations

  p.3, M05 row

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