GCAA CAR-66 B1 Exam study guide
GCAA CAR-66 B1 Exam · Work through your exam, one topic at a time.
The GCAA CAR-66 B1 Aircraft Maintenance Licence Examination is the knowledge-testing step for candidates seeking a B1 (mechanical) aircraft maintenance licence under the UAE General Civil Aviation Authority's CAR-66 regime. It is aimed at technicians and engineers who perform and certify maintenance on aeroplanes or helicopters and who need to demonstrate the theoretical knowledge required before licence issue. The GCAA CAR-66 B1 Exam study guide has 11 sections and about 3,169 words.
01Aviation Legislation: ICAO, EASA and the CAR-66 Licensing System
Candidates must understand how international obligations flow down to national rules. ICAO, as a UN specialised agency, publishes Annexes (Annex 1 on Personnel Licensing, Annex 8 on Airworthiness) and the Chicago Convention articles; these are standards and recommended practices that states implement in national law.
294 words, about 1 min02Human Factors: Performance, Error and the Maintenance Environment
Human factors questions test whether you can link a concept to a realistic maintenance scenario. Understand the SHELL model (Software, Hardware, Environment, Liveware) and how mismatches at the interfaces create error.
272 words, about 1 min03Air Law and the Regulatory Framework: Documents, Records and Responsibilities
Candidates must know the roles of the Chicago Convention, the bilateral airworthiness agreements, and the national regulations that implement them. In the UAE, the GCAA CARs set out airworthiness, maintenance and personnel requirements.
287 words, about 1 min04Aircraft General Knowledge and Maintenance Practices: Systems Overview and Safe Work
Candidates need a working map of aircraft systems: hydraulic, pneumatic, fuel, electrical, flight controls, landing gear, pressurisation and ice protection. Understand how systems interact (for example, hydraulic pressure sources and their redundancy), the meaning of redundancy and fail-safe design, and the difference between normal, alternate and emergency modes.
263 words, about 1 min05Electrical Fundamentals: DC Circuits, Magnetism and AC Basics
Understand Ohm's law, series and parallel circuits, Kirchhoff's laws, and power dissipation. Know how to calculate equivalent resistance and how current divides in parallel branches.
282 words, about 1 min06Electronic Fundamentals: Semiconductors, Logic and Digital Systems
Understand the diode (one-way conduction, used for rectification and flyback protection), the transistor as a switch and amplifier, and the thyristor as a latching switch. Know the meaning of forward and reverse bias, and why a flyback diode protects a circuit when an inductive load is switched off.
280 words, about 1 min07Materials and Hardware: Properties, Corrosion and Fasteners
Understand the properties that matter in airworthiness: strength, stiffness, ductility, fatigue resistance, and corrosion resistance. Know the common aircraft materials (aluminium alloys, titanium, steel, composites) and where each is used and why.
246 words, about 1 min08Maintenance Practices: Inspection, Documentation and Release
Understand the flow from scheduled maintenance through inspection, rectification, and release. Know the difference between a scheduled and unscheduled task, and between an inspection and a check.
262 words, about 1 min09Aerodynamics: Lift, Drag, Stability and Control
Understand the four forces, the generation of lift by pressure distribution and Newtonian deflection, and the meaning of angle of attack, chord line and camber. Know the lift curve and the stall: as angle of attack increases beyond the critical angle, lift decreases and the wing stalls.
244 words, about 1 min10Structures and Systems: Loads, Airframe and System Safety
Understand the load types (tension, compression, shear, bending, torsion) and how the airframe carries them. Know the semi-monocoque construction: skin, stringers, frames and bulkheads, and the role of the wing spar and ribs.
240 words, about 1 min11Gas Turbine Engines: Operation, Modules and Monitoring
Understand the Brayton cycle: intake, compression, combustion, exhaust. Know the function of the compressor (axial and centrifugal), the combustion chamber, the turbine, and the exhaust.
499 words, about 2 min