AMT Avionics & Electrical Systems Flashcards
6 cards from real AMT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 AMT Avionics & Electrical Systems flashcards as text
Which component in an aircraft charging system converts mechanical energy into electrical energy?
Answer: Alternator or generator
An alternator or generator is driven by the engine and converts mechanical rotational energy into electrical energy to power the aircraft systems and charge the battery.
What does the acronym 'ADF' stand for in aircraft avionics?
Answer: Automatic Direction Finder
ADF stands for Automatic Direction Finder, a navigation radio that uses a low-frequency/medium-frequency signal to determine bearing to a ground station.
Before performing maintenance on an aircraft avionics system, what is the first action an AMT should take?
Answer: Disconnect the battery and de-energize the system
Disconnecting the battery and de-energizing the electrical system is the required first step to prevent electrical shock and equipment damage during avionics maintenance.
What is the function of a VOR receiver in an aircraft?
Answer: Receives VHF omnidirectional range signals for navigation
A VOR receiver picks up VHF signals from ground-based VOR stations, allowing the pilot to determine their radial position relative to the station for navigation.
Which document must be completed after any avionics installation or alteration on a certificated aircraft?
Answer: FAA Form 337 (Major Repair and Alteration)
FAA Form 337 must be completed and filed for any major repair or alteration, including most avionics installations, on US-certificated aircraft.
What is the primary purpose of an aircraft transponder?
Answer: To reply to ATC radar interrogations with aircraft identification and altitude
A transponder receives radar interrogation signals from ATC and automatically replies with a coded squawk and Mode C altitude information.