Free mobile education tool to help you prepare for EASA part 66, FAA examinations or strengthen your knowledge about aviation and science in general. Questions are especially suited for EASE part 66 exam preparation for aircraft maintenance engineering license. No permissions or internet connection required. Download and sharpen your skills offline wherever you like to learn. 6800+ questions! 134 categories. Most questions (~4500) have explanations, which you can check at the end of quiz. And no ads! Modules : MATHEMATICS CHEMISTRY MECHANICS PHYSICS ELECTRICAL ELECTRONIC DIGITAL TECHNIQUES / ELECTRONIC INSTRUMENT SYSTEMS MATERIALS & HARDWARE MAINTENANCE PRACTICES BASIC AERODYNAMICS HUMAN FACTORS AVIATION LEGISLATION AEROPLANE AERODYNAMICS, STRUCTURES AND SYSTEMS HELICOPTER AERODYNAMICS, STRUCTURES AND SYSTEMS GAS TURBINE ENGINE PROPELLER If you find a question that needs improvement or is incorrect please write as at [email protected] so we can update it.