Avionics Electronics Technician (AET) 87 QUESTIONS
AND ANSWERS NEWEST RATED A+ 2025/2026
Generally, aircra electrical wire is rated at ___________.
600 Volts
A transformer is required to produce 28 volts in the secondary coil. How many turns of wire are
required in the
secondary coil and what amperes are created when thefollowing informa#on is known? Primary
Coil = 115 volts; 330
turns; 2.6 amps.
80 turns and 10.7 amps
Concerning electrosta#c discharge sensi#ve devices ensure all hand tools
are_____________________.
properly grounded prior to use
LC choke-input filters are characterized by a __________ at the input and a __________ across
the output.
series inductor, shunt capacitor
In scien#fic nota#on, the __________ is the numbering system of the reference number.
base number
the C1 capacitor is open.
If an AC Voltmeter is connected across the output of the circuit below and shows a reading of
10 VAC, then
When exposure to noise exceeds ___________ over an eight hour period, hearing protec#on is
typically required.
85 decibels
An open resistor normally has
extremely high resistance.
In the monostable mul#vibrator shown below, transistors Q1 and Q2 both func#on as
, on/off switches.
What is the input of the circuit if the output (C) is high?
A = low, B = high
__________ is the interna#onal symbol that represents current.
"I"
The Xc(Capaci#ve Reactance) of a capacitor __________ as the frequency __________.
Decreases, increases
What is the total capacitance of a circuit with three capacitors, all of which are in parallel with
each other, and have
capacitances of 0.25 microfarads, 0.03 microfarads and 0.12 microfarads, respec#vely?
0.4 microfarads
The binary equivalent of 86(10) is
1010110.
____________ is used to determine the amount of induced voltage in a conductor.
Faraday's Law
In a bipolar transistor schema#c symbol, electron flow is always from __________ to
__________ and against the arrowhead.
Nega#ve, Posi#ve
The movement of electrons through a conductor is called
current.
____________________ aFacks the grain boundary of the metal?
Intergranular Corrosion
Which would require the most electrical power during opera#on?
Two lights requiring 3 amps each in a 24 volt
parallel system.
To adjust the reverse bias current of Q2
In the figure below, what is the purpose of R4?
AND ANSWERS NEWEST RATED A+ 2025/2026
Generally, aircra electrical wire is rated at ___________.
600 Volts
A transformer is required to produce 28 volts in the secondary coil. How many turns of wire are
required in the
secondary coil and what amperes are created when thefollowing informa#on is known? Primary
Coil = 115 volts; 330
turns; 2.6 amps.
80 turns and 10.7 amps
Concerning electrosta#c discharge sensi#ve devices ensure all hand tools
are_____________________.
properly grounded prior to use
LC choke-input filters are characterized by a __________ at the input and a __________ across
the output.
series inductor, shunt capacitor
In scien#fic nota#on, the __________ is the numbering system of the reference number.
base number
the C1 capacitor is open.
If an AC Voltmeter is connected across the output of the circuit below and shows a reading of
10 VAC, then
When exposure to noise exceeds ___________ over an eight hour period, hearing protec#on is
typically required.
85 decibels
An open resistor normally has
extremely high resistance.
In the monostable mul#vibrator shown below, transistors Q1 and Q2 both func#on as
, on/off switches.
What is the input of the circuit if the output (C) is high?
A = low, B = high
__________ is the interna#onal symbol that represents current.
"I"
The Xc(Capaci#ve Reactance) of a capacitor __________ as the frequency __________.
Decreases, increases
What is the total capacitance of a circuit with three capacitors, all of which are in parallel with
each other, and have
capacitances of 0.25 microfarads, 0.03 microfarads and 0.12 microfarads, respec#vely?
0.4 microfarads
The binary equivalent of 86(10) is
1010110.
____________ is used to determine the amount of induced voltage in a conductor.
Faraday's Law
In a bipolar transistor schema#c symbol, electron flow is always from __________ to
__________ and against the arrowhead.
Nega#ve, Posi#ve
The movement of electrons through a conductor is called
current.
____________________ aFacks the grain boundary of the metal?
Intergranular Corrosion
Which would require the most electrical power during opera#on?
Two lights requiring 3 amps each in a 24 volt
parallel system.
To adjust the reverse bias current of Q2
In the figure below, what is the purpose of R4?
