P A P E R II Aircraft General Engineering And Maintenance Practices ___________________________________________________________ 1. Aircraft Maintenance Practices General knowledge of procedure of jacking, leveling and mooring of aircraft . Knowledge of maintenance and handling of equipments used in the maintenance of aircraft. Knowledge of safety and fire precautions to be observed during maintenance, refueling and defueling of aircraft Knowledge of colour coding ,symbols or other markings to identify fluid systems pipelines, rubber parts and other aircraft systems of aircraft . Knowledge of various Aircraft manuals, ATA system of classi- fication, inspection schedules, time limit. 2. Workshop Practices Knowledge of material, parts and use of hand tools , simple machine tools and precision measuring instruments Detailed knowledge of identification, terminology, correct use and inspection of aircraft bolts, nuts, rivets, screws and locking devices of British and American systems Detailed knowledge of the interpretation of engineering drawings including symbols Detailed knowledge of various types of gears and bearings, their use and common defects. Knowledge of various forms of threads used in British and American system. Knowledge of various types of threads, drills, taps, ream- ers. Knowledge of hardness testing machines and various types of hardness numbers. Knowledge of various types of Aircraft cables and swaging procedures used. 3. Aircraft Metallurgy Knowledge of commonly used ferrous, nonferrous and composite materials , their identification, properties, heat treatment processes, testing and their application in aircraft indus- try. Knowledge of various types of corrosion, its cause and protection. Detailed knowledge of the hot oil and chalk , dye penetrant and fluorescent and magnetic particle techniques and the subsequent inspection of the parts. Knowledge of the X-ray, Ultrasonic and eddy current inspec- tions. Knowledge of arc welding, gas welding, brazing and solder- ing. 4. Electrical and Instrument and Radio Knowledge of electrical terminology and components used in AC/DC circuitry, Ohm's law, Kirchoff's law and their appli- cation. Principle of Electromagnetic Induction and their application. Various methods of voltage regulation. Princi- ple of operation of electrical test equipments. Knowledge of Batteries and their maintenance. Knowledge of principle of operation of aircraft and engine instruments. Knowledge of various types of diodes/ triodes/ transistors and their function. Knowledge of conversion from decimal to binary system and vice-versa. Symbols used in logic gates. Elementary knowledge of computers, its applications. Identify the bands of frequency spectrum, their use and propagation characteristics. 5. Aircraft and Engine Knowledge of the functions of the major aircraft components and types of propulsion systems used in aircraft industry. Knowledge of the terms lift, drag, angle of attack, stall. Knowledge of principle of four stroke cycle and Brayton's cycle as applied to piston engines and jet engines.