Avionics Electronics Technician (AET) Practice Test

Browse all practice questions for the Avionics Electronics Technician (AET) Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

Start practice testFlash cards
Avionics Electronics Technician (AET) Practice Test course image
Understanding Capacitance and Its Measurement in ElectronicsWhat is the unit of measurement for capacitance?Understanding CR1’s Role in Full Wave RectificationWhat is the primary function of CR1 in a full wave rectifier?Understanding Diode Behavior in Electrical CircuitsWhat circuit component's behavior is often measured in terms of its current flow based on voltage changes?Understanding Electrical Power Requirements in Avionics SystemsWhich configuration would require the most electrical power during operation?Understanding Electron Flow in Bipolar TransistorsIn a bipolar transistor schematic symbol, the direction of electron flow is always from __________ to __________.Understanding How Capacitive Reactance Changes with FrequencyWhat happens to the capacitive reactance of a capacitor as the frequency decreases?Understanding How Electronic Altimeters Display Altitude InformationHow does an electronic altimeter display altitude information?Understanding How Load Increases Affect Power Supply PerformanceWhat does an increase in load typically lead to in terms of a power supply's performance?Understanding the Binary Equivalent of Decimal NumbersWhat is the binary equivalent of 86 in decimal?Understanding the Concept of Current in Avionics ElectronicsWhat is the term used for the movement of electrons through a conductor?Understanding the Consequences of Exceeding Circuit CapacityWhat characteristic is shown by a circuit if its current exceeds its rated capacity?Understanding the Effect of Load Increase on Voltage Across CR1What happens to the voltage across CR1 if the output load increases?Understanding the Importance of Resistance in Circuit ComponentsWhat type of circuit component is measured in ohms?Understanding the Negative Feedback Path in Crystal OscillatorsWhat is the negative feedback path in a crystal oscillator?Understanding the open resistor: what it means when resistance goes to infinityWhat is the characteristic of an open resistor?Understanding the Resistance of a Closed SwitchWhat should the approximate resistance of a closed switch be?Understanding the Role of Accelerometers and Gyroscopes in Inertial Navigation SystemsWhat does an Inertial Navigation System (INS) primarily utilize for navigation?Understanding the Role of Differential GPS in Enhancing Navigation AccuracyWhat type of signal does differential GPS (DGPS) use for improved accuracy?Understanding the Role of UHF in Radio CommunicationWhat does the acronym 'UHF' refer to in the context of radio communication?Understanding the Significance of Diode Readings in ElectronicsWhen measuring across the terminals of a diode, a reading of zero indicates what condition?Understanding the Standard Voltage Rating for Aircraft Electrical WireWhat is the standard voltage rating for aircraft electrical wire?Understanding the technology behind Synthetic Vision SystemsWhat technology does 'Synthetic Vision System' (SVS) use?Understanding the Total Capacitance of Capacitors in ParallelWhat is the total capacitance of three capacitors in parallel with values 0.25 microfarads, 0.03 microfarads, and 0.12 microfarads?Understanding What an Ammeter Measures in Electrical CircuitsWhat does an ammeter connected in a circuit measure?What a full-adder outputs when Sum is 0 and Carry is 1 and why it happensFor the output of a full-adder, what is the result when the conditions yield a Sum of 0 and a Carry of 1?What FMC Means in Flight ManagementWhat does 'FMC' stand for in the context of flight management?What the Vertical Speed Indicator Reveals During ClimbWhat does the vertical speed indicator show when climbing?
More practice questions

These questions are part of the practice quiz. Start practicing

  • What is the total capacitance of capacitors in series generally considered to be?
  • What is a major benefit of using differential GPS?
  • What happens to the average output voltage of a power supply when the load is increased?
  • In an electrical circuit, what is the significance of the total resistance in relation to current flow?
  • What is the primary role of a transistor in a circuit?
  • What does the left hand rule help determine regarding a coil?
  • What does the abbreviation 'TCAS' stand for?
  • What type of signal does an NDB emit for aircraft navigation?
  • If a circuit has no output voltage, what is a good first step to troubleshoot?
  • What type of data does a Multi-Function Display (MFD) show?
  • In a circuit with an applied voltage of 30 volts, what is the voltage drop across a 10-ohm resistor in series with a 20-ohm resistor?
  • When inductors of different inductance are connected in parallel, how is the total inductance calculated?
  • If a transformer has a primary coil with 115 volts and 330 turns, how many turns are needed in the secondary coil to produce 28 volts?
  • What is the required separation minimum between aircraft in controlled airspace?
  • What does a reading of infinity on an ohmmeter across a diode in both directions indicate?
  • What aspect must be considered regarding the impact of current load on resistors in a series circuit?
  • What is typically true about the output when the input (C) is low in a digital logic circuit?
  • What is the effect of increasing the load resistance in a circuit with a fixed voltage source?
  • What is the international symbol that represents current?
  • What does the acronym 'VOR' stand for in aviation navigation?
  • Which type of wave does radar primarily use?
  • What is the role of a 'magnetometer' in avionics?
  • In avionics, what is the function of an electronic altimeter?
  • What is 'active traffic surveillance' used for?
  • What is the purpose of a pitot tube?
  • What diagram is used to show the functional location of components within a system?
  • How does one typically measure the output voltage of a circuit?
  • What does the output status indicate if the output (C) of a circuit is high?
  • What is the main purpose of a circuit breaker in aircraft electrical systems?
  • In a DC series circuit, how is the voltage distributed?
  • How often should aircraft pitot-static systems be inspected?
  • Which device is used to display the output waveform of a wave generating circuit?
  • In an electrical circuit, what is typically the consequence of having a faulty resistor?
  • What will the state of a J-K flip-flop be if it toggles at a rate equal to the clock input with conditions J = 1 and K = 0?
  • What characteristic is important in an oscilloscope for displaying waveforms?
  • In a circuit, the phenomenon of hysteresis is important because it affects what property?
  • What is represented by the acronym 'RMI' in avionics?
  • According to Kirchhoff's voltage law, what does the sum of the voltage drops in a series circuit equal?
  • What should the working voltage of a capacitor in an AC circuit exceed?
  • Which avionics system communicates with ground-based ATC facilities?
  • What is the main purpose of a dynamic weather radar?
  • Which inputs on a half-adder circuit will produce a sum of 0 and a carry of 1?
  • What does 'IATA' stand for?
  • What is the function of an 'engine control unit' (ECU) in avionics?
  • What is the function of an 'altimeter'?
  • When the landing gear is down, in which scenario will the green light not illuminate?
  • What happens to the output signal in a full wave rectifier compared to the input signal?
  • Increasing the capacitance of a filter capacitor will affect the ripple amplitude how?
  • In digital circuits, what is the significance of using a full-adder?
  • What is the characteristic of a diode's forward bias resistance?
  • When is the resistance of the current return path through the aircraft considered negligible?
  • If the voltage applied across a capacitor is removed, what happens to the charge stored in the capacitor?
  • What is the primary function of an avionics system?
  • How many milliamps are required in the secondary coil if the primary current is 1.3 amps?
  • Which of the following is NOT a function of the avionics systems?
  • What is the cutoff frequency of a filter where the output drops to 70.7% of its maximum value?
  • In avionics, what does the term 'autopilot' refer to?
  • If a voltmeter is placed in a circuit, what is the expected reading given a specific voltage of 7 VDC?
  • How does a change in input voltage typically affect the operation of a transformer?
  • What type of signal does a Flight Management Computer (FMC) use for approach guidance?
  • What does the term 'primary flight display' (PFD) refer to?
  • What condition allows the electrical assembly equipment to be effective in ESD-controlled environments?
  • What does the term "total inductance" refer to when multiple inductors are connected in series?
  • What type of instruments does a Multi-Function Display (MFD) integrate?
  • What is the role of FLIR (Forward Looking Infrared) systems in avionics?
  • What type of corrosion specifically attacks the grain boundary of metal?
  • What effect does increasing the load on a power supply filter have on ripple amplitude?
  • What is a significant advantage of using fiber optics in avionics?
  • What is the primary role of a voltmeter in an electronic circuit?
  • What is an avionics suite?
  • Which law is used to determine the amount of induced voltage in a conductor?
  • What does 'SIDS' help pilots with during departures?
  • Which formula is used to find the total resistance of a DC parallel circuit with three different resistances?
  • Which type of resistor has a tolerance of 1%?
  • What does the term 'ripple' refer to in power supply design?
  • Where should the outer shield of a coaxial cable be grounded?
  • What is the function of a transformer in a circuit?
  • What is the standard power supply voltage for most aircraft avionics?
  • When four resistors are connected in parallel and energized by a 24 volt source, what is the voltage drop across each resistor?
  • To ensure safety with electrostatic discharge sensitive devices, what should be done with all hand tools?
  • When testing a capacitor with an ohmmeter, what indicates a good capacitor?
  • How can 250000 be expressed in scientific notation?
  • What is the nominal impedance of a transmission line used for aircraft radios?
  • What does the acronym 'GPS' signify in navigation?
  • If the times/division control of an oscilloscope is set to 50 microseconds, what is the corresponding frequency of the displayed waveform?
  • What characterizes LC choke-input filters at the input and output?
  • What does the acronym 'ILS' signify in avionics?
  • In a monostable multivibrator, what role do transistors Q1 and Q2 play?
  • In a circuit where the C1 capacitor is open, what can be inferred about its condition?
  • In avionics, what does TCAS stand for?
  • What is a key operational characteristic of an asynchronous counter?
  • Which statement describes the operation of a series-fed Hartley oscillator?
  • To produce 600 volts in the secondary coil of a transformer with a primary coil of 28 volts and 100 turns, how many turns are required in the secondary coil?
  • The arrowhead on a transistor symbol indicates what about the transistor?
  • What is the purpose of CR1 in terms of signal processing in a full wave rectifier?
  • Which electrical component is used for converting AC voltage to DC voltage?
  • Which component is NOT typically included in an electronic flight bag (EFB)?
  • What is the use of 'magnetic deviation correction' in avionics?
  • In series circuits, how does the total voltage relate to the individual voltage drops across components?
  • What will happen if the diodes in a full wave rectifier are reversed?
  • What is the resistance of a carbon resistor that is labeled as 120 Ohms ± 20%?
  • What does FMS stand for in the context of avionics?
  • When the DC input voltage increases, how does it affect the voltage drop across R2 in a circuit?
  • What happens to the current through a Zener diode if the input voltage increases?
  • Which system is primarily used for Wing Ice Detection?
  • What comprises an electronic flight bag (EFB)?
  • What happens to the charge on a capacitor when the voltage is removed?
  • In a bipolar transistor circuit, what is the purpose of a resistor in the reverse bias current adjustment?
  • Above what noise level over an eight-hour period is hearing protection typically required?
  • What does 'ADS-B' stand for?
  • What does 'VMC' refer to in terms of speed in aviation?
  • What does the term 'navigation database' represent in avionics?
  • When capacitors are connected in series, how is the total capacitance calculated?
  • Which characteristic differentiates alternating current from direct current in an electrical circuit?
  • If an AC voltmeter shows a reading of 10 VAC across a circuit output, what can be concluded?
  • In what situation would an ADF be most beneficial?
  • What is the purpose of a transponder in aviation?
  • What occurs to the charging current in a capacitor test when a capacitor is good?
  • What is the primary purpose of the Wireless Avionics Intranet (WAI)?
  • A lower than normal output voltage in a transformer might indicate what issue?
  • What type of corrosion forms between the contacting points of dissimilar metals?
  • What is the typical effect of increasing the capacitance in a power supply filter circuit?
  • What is the total resistance of a closed switch?
  • What type of signal does a VHF radio operate on?
  • What does 'S-Mode' refer to in transponder terminology?
  • Which type of flip-flop is the most widely used?
  • What is the main function of ground proximity warning systems (GPWS)?
  • What does 'SIDS' refer to in aviation?
  • Which electrical components are primarily used for voltage regulation in aircraft avionics?
  • What does 'NDB' stand for in aviation navigation?
  • A resistor with a black, black, and red color code has what resistance value?
  • What is the hexadecimal equivalent of the binary number 101101101100?
  • What is the primary job of the Control Display Unit (CDU)?
  • What type of resistance does the collector-base junction of a properly biased transistor have?
  • In what units is aircraft altitude typically measured?
  • In avionics, what is 'DME' used for?
  • When inductors are connected in series, how is the total inductance calculated?
  • In a half-adder circuit, which input combination results in a sum of 0 and a carry of 1?
  • What is the total capacitance of three capacitors connected in series with capacitances of 0.2 microfarads, 0.05 microfarads, and 0.10 microfarads?
  • What type of navigation does a 'Horizon Indicator' assist with?
  • Which of the following is a primary voltage regulator?
  • What does a good capacitor show when tested with an ohmmeter?
  • Which technology is known for high resistance to electromagnetic interference?
  • What is the purpose of a voltage divider in a circuit?
  • What is the primary objective of 'Maintenance Tracking Systems' in avionics?
  • Increasing the amount of forward bias will have what effect on the resistance of a PN junction diode?
  • What happens to the output of a filter at its cutoff frequency?
  • With proper bias applied to a transistor, what type of resistance does the emitter-base junction have?
  • What must a technician consider when working with ESD sensitive components on printed circuit boards?
  • What is the primary characteristic of a band-pass filter?
  • In a series-fed Hartley oscillator, what happens if the frequency-determining capacitance is increased?
  • What is the assumed tolerance of a carbon resistor if there is no fourth color band present?
  • In an oscilloscope display, amplitude is represented on which axis?
  • What would an ohmmeter indicate when connected at two points in a circuit?
  • Which type of frequency-sensitive filter consists of series LC circuits across both input and output, with a parallel LC circuit in between?
  • What are the key components of an 'Electrical Load Analysis'?
  • The primary function of a push to test circuit is to?
  • What is a wiring diagram used for in aircraft electronics?
  • What is the primary purpose of an Automatic Direction Finder (ADF)?
  • What is the general requirement when maintaining ESD-sensitive equipment?
  • What is the function of the Flight Management System (FMS)?
  • What does hysteresis in a magnetic context refer to?
  • In a parallel connection of lights, what would the voltage across a 10 watt light be, if it's connected alongside a 20 watt light?
  • Which material has the highest magnetic permeability?
  • What information is provided by a vertical speed indicator (VSI)?
  • What is the role of static ports in an aircraft?
  • What does the term impedance describe in an electrical circuit?
  • In scientific notation, what is the term used for the numbering system of the reference number?
  • What is the significance of an 'IFR' rating for pilots?
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy