GCAA CAR-66 B2 Exam study guide
GCAA CAR-66 B2 Exam · Work through your exam, one topic at a time.
The GCAA CAR-66 B2 licence is the UAE General Civil Aviation Authority's certification for aircraft maintenance engineers who work on avionics and electrical/electronic systems. It is aimed at technicians seeking to certify maintenance on electronic instrument systems, electrical power, and related avionic equipment under the UAE regulatory framework administered by the GCAA. The GCAA CAR-66 B2 Exam study guide has 12 sections and about 3,785 words.
01Mathematics
CAR-66 mathematics is applied arithmetic for maintenance, not abstract algebra. Be fluent with fractions, decimals, percentages, ratio and proportion, powers and roots, scientific notation, and unit conversion.
306 words, about 2 min02Physics
Physics underpins every system you will maintain. Know matter and its states, mass versus weight, density, force, pressure (including atmospheric, gauge and absolute), work, energy, power, and the gas laws.
309 words, about 2 min03Electrical Fundamentals
Build a solid grasp of electron theory, conductors, insulators and semiconductors, and the quantities: charge, current, voltage, resistance, power and energy. Know Ohm's law, Kirchhoff's voltage and current laws, and series/parallel resistor combinations.
329 words, about 2 min04Electronic Fundamentals
Know the physics and behaviour of semiconductor devices: diodes (including Zener and light-emitting), bipolar transistors as switches and amplifiers, and field-effect transistors in principle. Understand rectification (half-wave, full-wave, bridge), smoothing and voltage regulation, and the purpose of filters.
309 words, about 2 min05Digital Techniques / Electronic Instrument Systems
Understand number systems (binary, octal, hexadecimal and binary-coded decimal), conversion between them, and basic arithmetic in binary. Know logic gates (AND, OR, NOT, NAND, NOR, XOR) and how to read a truth table.
321 words, about 2 min06Materials and Hardware
Know aircraft structural materials: aluminium alloys (with heat treatment designations), titanium, steel, magnesium and composite materials including fibre-reinforced plastics and honeycomb. Understand ferrous and non-ferrous metal properties, corrosion types (galvanic, stress, crevice, exfoliation) and the reason for surface protection such as anodising, plating and paints.
292 words, about 1 min07Maintenance Practices
This is the largest practical domain. Know safety precautions, hangar and ramp discipline, fire precautions and the correct extinguishing medium for each fire class.
321 words, about 2 min08Basic Aerodynamics
Know the atmosphere: composition, the International Standard Atmosphere, pressure and temperature lapse, and how density altitude affects performance. Understand airflow: streamline, laminar and turbulent flow, boundary layer, and the meaning of stagnation point.
314 words, about 2 min09Human Factors
Human factors is about designing work and environments so that people perform reliably. Know the SHELL model and the error chain concept.
310 words, about 2 min10Aviation Legislation
Know the structure of aviation regulation: ICAO as the international framework, and the national authority - here, the GCAA - implementing it through civil aviation regulations. Understand CAR-66: the categories of licence (A, B1, B2, C), the experience and examination requirements, the scope of certification privileges, and the limits of each category.
325 words, about 2 min11Turbine Aeroplane Aerodynamics, Structures and Systems
Know the gas turbine cycle and the function of compressor, combustion chamber, turbine and exhaust. Understand the difference between turbojet, turbofan, turboprop and turboshaft, and the meaning of bypass ratio and thrust.
321 words, about 2 min12Helicopter Aerodynamics, Structures and Systems
Know how a rotor generates lift: relative airflow, angle of attack, blade pitch, and the difference between rotational and induced velocity. Understand rotor systems (articulated, semi-rigid, rigid) and the function of the swashplate in collective and cyclic control.
328 words, about 2 min