EASA Part 66 · Module 15
Module 15: Gas Turbine EngineEASA Part 66 practice questions & answers
EASA Part 66 Module 15 (Gas Turbine Engine) practice questions.
Exam simulation recreates the real EASA test — full question count, countdown timer and 75% pass mark (subscribers).
About this module
EASA Part 66 Module 15 walks the gas path end to end — intake, compressor, combustor, turbine, exhaust — then covers everything around it: lubrication and fuel systems, bleed air, starting and ignition, indications, water injection and reheat, turboprops and turboshafts, APUs, fire protection, ground running, troubleshooting and preservation.
Required for the B1.1 and B1.3 turbine licences, it rewards candidates who can connect symptoms to causes: a hung start, high EGT with low rpm, compressor stall with a stuck bleed valve. Our near-900-question bank leans into that fault-diagnosis style, with an explanation on every answer.
What this module covers
Gas turbine engines end to end — inlet, compressor, combustion, turbine and exhaust, plus the fuel, oil, air, ignition and monitoring systems around them. The largest of the powerplant modules and core to the B1.1 licence. Topics below follow the official EASA Part 66 syllabus.
- 15.1Fundamentals
- 15.2Engine performance
- 15.3Inlet
- 15.4Compressors
- 15.5Combustion section
- 15.6Turbine section
- 15.7Exhaust
- 15.8Bearings and seals
- 15.9Lubricants and fuels
- 15.10Lubrication systems
- 15.11Fuel systems
- 15.12Air systems
- 15.13Starting and ignition systems
- 15.14Engine indication systems
- 15.15Power augmentation systems
- 15.16Turbo-prop and turbo-shaft engines
- 15.17Auxiliary power units (APUs)
- 15.18Powerplant installation
- 15.19Fire protection systems
- 15.20Engine monitoring and ground operation
- 15.21Engine storage and preservation
How the exam works
Every Part 66 module is examined by multiple-choice questions with a 75% pass mark and no negative marking. More about EASA Part 66 →