CAAB AME B1.2 study guide
CAAB AME B1.2 · Work through your exam, one topic at a time.
The Civil Aviation Authority of Bangladesh (CAAB - বেবিচক) publishes a dedicated AME examination area on its national portal, including an 'ই-এক্সাম এএমই' (E-Exam AME) section, an 'Exam Schedule (PEL)' link and a syllabus ('সিলেবাস') page, plus paper-based examination circulars and forms. This page covers the Category B1.2 licence examination - the piston-engine aeroplane maintenance engineer category - and is written for trainee engineers and working technicians who need to pass the authority's basic knowledge papers before qualifying for the licence. The CAAB AME B1.2 study guide has 11 sections and about 3,609 words.
01Mathematics
Module mathematics is applied arithmetic and algebra for engineering, not pure theory. You must be fluent with: fractions, powers and roots, scientific notation and SI prefixes; ratio, proportion and percentage; transposition of formulas; linear and simultaneous equations; simple quadratics; and logarithms used for decibel-type problems.
298 words, about 1 min02Physics
You must be able to handle SI base and derived units and their prefixes; scalars versus vectors; linear motion (velocity, acceleration, equations of uniformly accelerated motion); Newton's three laws; moments, couples and equilibrium; work, energy, power and efficiency; and momentum. Matter and fluids covers density, specific gravity, pressure (hydrostatic and pneumatic), Pascal's law, buoyancy, and the gas laws.
319 words, about 2 min03Electrical Fundamentals
Start with electron theory and static electricity, then conduction in solids, liquids and gases, and the factors affecting resistance (length, area, material, temperature). Ohm's law and the power equation underpin everything.
332 words, about 2 min04Electronic Fundamentals
Semiconductor theory begins with intrinsic and extrinsic (n-type and p-type) materials, then the pn junction. You must understand diode operation and its applications: half-wave and full-wave rectification, smoothing, zener regulation, light-emitting diodes and photodiodes.
342 words, about 2 min05Digital Techniques and Electronic Instrument Systems
Numbering systems and conversion between binary, octal, decimal and hexadecimal; binary addition and subtraction, including two's complement for negative numbers; and binary-coded decimal. Logic covers the AND, OR, NOT, NAND, NOR and exclusive-OR gates, truth tables, and simple combinational circuits.
318 words, about 2 min06Materials and Hardware
Ferrous and non-ferrous metals and their alloys: properties, heat treatment (annealing, normalising, hardening, tempering), and the reason aircraft use aluminium alloys, titanium and magnesium. Composite materials - fibres, matrices, lay-up, and the inspection issues they create.
310 words, about 2 min07Maintenance Practices
Safety first: fire types and extinguishing agents, safe use of fluids and gases, and the precautions around flight controls and systems before work. Workshop practice covers tools, measuring instruments, calibration, tolerances, fits and clearances, and the reading of drawings and diagrams.
317 words, about 2 min08Basic Aerodynamics
The International Standard Atmosphere and its layers, and how temperature, pressure and density vary with altitude. Airflow: streamline and turbulent flow, Bernoulli's theorem, venturi effect, and the boundary layer.
361 words, about 2 min09Human Factors
The SHELL model - Software, Hardware, Environment and Liveware - and the recognition that most maintenance errors arise at the interfaces between them. Human performance limits: vision (rods and cones, dark adaptation, colour vision, sight lines in poor light), hearing and noise, information processing, attention and vigilance, perception and illusions, memory (short- and long-term, and its fallibility), and motivation.
345 words, about 2 min10Aviation Legislation
ICAO sets Standards and Recommended Practices through Annexes; the EU implements them through EASA regulations. You must know Regulation (EU) No 1321/2014 covering Part-M, Part-145, Part-66 and Part-CAMO, and the Part-66 licence categories and their privileges, including certification of release to service by a B1 or B2 holder within their category.
345 words, about 2 min11Propeller
Propeller fundamentals: blade element theory, blade angle, geometric pitch, effective pitch and slip; the relationship between pitch, rpm and forward speed; thrust, torque and the blade forces - centrifugal, thrust bending, torque bending and aerodynamic twisting. Fixed-pitch, two-pitch and constant-speed propellers; the governor, its flyweights and speeder spring, and how it controls blade angle to hold rpm.
322 words, about 2 min