Science Engineering Electrical Engineering
ATT test 6 Comprehensive Questions
(Frequently Most Tested) with Verified
Answers
Save
Students also studied
EVITP Final Exam Questions and Ver... TFM 12 Fire Alarm Technical TPC 210 electrical troubleshooting Additio
Teacher 118 terms Teacher 91 terms Teacher 11 terms Teacher
bryan_kilonzo Preview brenner_muriithi Preview kiirukirigo Preview WE
What is the purpose of a sine wave Convert DC Energy to sinusoidal AC Energy.
oscillator?
What is the purpose of a Hartley Convert DC Energy to sinusoidal AC Energy.
Oscillator?
What is the purpose of a colpitts oscillator? Convert DC Energy to sinusoidal AC Energy.
What is the purpose of a RC phase shift Convert DC Energy to sinusoidal AC Energy.
oscillator?
What is the purpose of a crystal oscillator? Convert DC Energy to sinusoidal AC energy.
What is the purpose of a sawtooth Convert square wave energy to a sawtooth waveform.
generator?
The FET is a ___________. Unipolar Device
The element that current carries enter the Source
FET through is called?
The element that current carriers leave Drain
through is called?
The flow of current carriers through the FET Gate
is controlled by this element.
What is the most common fault in a FET A failed semiconductor component.
amplifier?
What is it called when current flow remains Saturation
constant?
(1.) Determine amplifier operation
What are the 4 steps to troubleshoot an (2.) Determine if Vcc is present
amplifier? (3.) Determine if FET is good
(4.) Isolate problem to bias circuit
, How is a Hartley Oscillator identified? They have two inductors in the feedback circuit.
How is frequency determined in a Hartley The values of the components in the feedback circuit determine the frequency.
Oscillators?
How is a colpitts oscillator identified? Two capacitors in the feedback circuit.
How is frequency determined in a colpitts Frequency is determined by the components in the feedback circuit.
oscillator?
How is an RC Phase Shift oscillator They have three RC networks in the feedback circuit.
identified?
360 degrees.
What is the total phase shift in an RC Phase
Q1 is a common emitter amplifier that produces a 180 degree phase shift. Each RC
shift oscillator?
network produces a phase shift as well.
How is frequency determined with the The frequency of the output is determined by the frequency of the input.
sawtooth oscillator?
What is the purpose of a blocking They change DC into short, rectangular pulses that can be used as timing pulses to
oscillator? trigger other circuits.
Blocking Oscillator Any oscillator that cuts off its own oscillations at a predetermined time.
The amount of control that the input voltage has over the output current.
Transconductance (gm)
Gm= Ioutput/Einput
Name the 3 multivibrators whose purpose 1. Astable Multivibrator
is to convert DC Energy to square wave 2. Monostable Multivibrator
energy. 3. Bistable Multivibrator
Helps to convert DC energy to square Astable Multivibrator
wave energy
Converts DC energy to square wave Monostable Multivibrator
energy
Converts DC energy to square waves Bistable Multivibrator
What type of blocking oscillator is a Trigger
monostable Multivibrator?
How is the output frequency determined in The output frequency is one half the input trigger frequency.
a bistable Multivibrator?
To convert any input waveform of any shape and amplitude into square wave pulses
What is the purpose of a Schmitt trigger?
of constant amplitude.
The output is high anytime the input exceeds the threshold.
In a Schmitt Trigger when is output high;
when is output low?
The output is low anytime the input signal is below the threshold.
(1.) Place a positive voltage on the drain to establish current flow.
All FET biasing techniques accomplish two
things:
(2.) Reverse bias the source to gate PN junction to control current flow.
The action of converting detected Reproduction
intelligence into sound waves that a human
can hear.
The action of separating the low frequency Detection
intelligence from the high frequency
carrier.
ATT test 6 Comprehensive Questions
(Frequently Most Tested) with Verified
Answers
Save
Students also studied
EVITP Final Exam Questions and Ver... TFM 12 Fire Alarm Technical TPC 210 electrical troubleshooting Additio
Teacher 118 terms Teacher 91 terms Teacher 11 terms Teacher
bryan_kilonzo Preview brenner_muriithi Preview kiirukirigo Preview WE
What is the purpose of a sine wave Convert DC Energy to sinusoidal AC Energy.
oscillator?
What is the purpose of a Hartley Convert DC Energy to sinusoidal AC Energy.
Oscillator?
What is the purpose of a colpitts oscillator? Convert DC Energy to sinusoidal AC Energy.
What is the purpose of a RC phase shift Convert DC Energy to sinusoidal AC Energy.
oscillator?
What is the purpose of a crystal oscillator? Convert DC Energy to sinusoidal AC energy.
What is the purpose of a sawtooth Convert square wave energy to a sawtooth waveform.
generator?
The FET is a ___________. Unipolar Device
The element that current carries enter the Source
FET through is called?
The element that current carriers leave Drain
through is called?
The flow of current carriers through the FET Gate
is controlled by this element.
What is the most common fault in a FET A failed semiconductor component.
amplifier?
What is it called when current flow remains Saturation
constant?
(1.) Determine amplifier operation
What are the 4 steps to troubleshoot an (2.) Determine if Vcc is present
amplifier? (3.) Determine if FET is good
(4.) Isolate problem to bias circuit
, How is a Hartley Oscillator identified? They have two inductors in the feedback circuit.
How is frequency determined in a Hartley The values of the components in the feedback circuit determine the frequency.
Oscillators?
How is a colpitts oscillator identified? Two capacitors in the feedback circuit.
How is frequency determined in a colpitts Frequency is determined by the components in the feedback circuit.
oscillator?
How is an RC Phase Shift oscillator They have three RC networks in the feedback circuit.
identified?
360 degrees.
What is the total phase shift in an RC Phase
Q1 is a common emitter amplifier that produces a 180 degree phase shift. Each RC
shift oscillator?
network produces a phase shift as well.
How is frequency determined with the The frequency of the output is determined by the frequency of the input.
sawtooth oscillator?
What is the purpose of a blocking They change DC into short, rectangular pulses that can be used as timing pulses to
oscillator? trigger other circuits.
Blocking Oscillator Any oscillator that cuts off its own oscillations at a predetermined time.
The amount of control that the input voltage has over the output current.
Transconductance (gm)
Gm= Ioutput/Einput
Name the 3 multivibrators whose purpose 1. Astable Multivibrator
is to convert DC Energy to square wave 2. Monostable Multivibrator
energy. 3. Bistable Multivibrator
Helps to convert DC energy to square Astable Multivibrator
wave energy
Converts DC energy to square wave Monostable Multivibrator
energy
Converts DC energy to square waves Bistable Multivibrator
What type of blocking oscillator is a Trigger
monostable Multivibrator?
How is the output frequency determined in The output frequency is one half the input trigger frequency.
a bistable Multivibrator?
To convert any input waveform of any shape and amplitude into square wave pulses
What is the purpose of a Schmitt trigger?
of constant amplitude.
The output is high anytime the input exceeds the threshold.
In a Schmitt Trigger when is output high;
when is output low?
The output is low anytime the input signal is below the threshold.
(1.) Place a positive voltage on the drain to establish current flow.
All FET biasing techniques accomplish two
things:
(2.) Reverse bias the source to gate PN junction to control current flow.
The action of converting detected Reproduction
intelligence into sound waves that a human
can hear.
The action of separating the low frequency Detection
intelligence from the high frequency
carrier.
