ATT 2 EXAM QUESTIONS AND
CORRECT ANSWERS|A
GRADE(DOWNLOAD TO SCORE A) 2025
NEW UPDATE
Which element in a translate is used to produce a large number of current carriers? -
Answers - ✔✔Emitter
An open is the primary of a transformer causes no output voltage because
_______________. - Answers - ✔✔The open prevents magnetic fields from developing
The most common faults found in transformers are ____________. - Answers -
✔✔Shorts and opens
Which element in a transmitter is used to pass most of the current carriers? - Answers -
✔✔Base
In an NRN transistor, the base DC bias voltage must be _______. - Answers -
✔✔Positive compared to the emitter
Which amplifier has the best efficiency? - Answers - ✔✔Class C
Electrolytic capacitors are ____________. - Answers - ✔✔Polarized
What are the dielectric types used by capacitors? - Answers - ✔✔Electrolytic, ceramic,
and film
When an input is applied across the emitter to base PN junction, what is the relative
resistance? - Answers - ✔✔Low
When an input is applied across the collector to base PN junction, what is the relative
resistance? - Answers - ✔✔High
Alpha is the ratio of ________________. - Answers - ✔✔Ic to Ie (Ic/Ie)
The point when Ic no longer increases although base bias voltage increases is called? -
Answers - ✔✔Saturation
The point where Ib and Ic stop is called? - Answers - ✔✔Cutoff
, What happens in a transistor when the saturation point is reached? - Answers - ✔✔Ic
stops increasing
Capacitors are identified by their _______________. - Answers - ✔✔The type of
dielectric used
What happens in a transistor when base voltage reverse biases the emitter to base PN
junction? - Answers - ✔✔Cutoff occurs
The purpose of an _____________ is to increase signal strength. - Answers -
✔✔Amplifier
Transistor amplifiers require what type of signals to functions? - Answers - ✔✔DC bias
and AC input signals
What amplifiers are biased so the input signal occurs within the limits of cutoff and
saturation? - Answers - ✔✔Class A
What changes are necessary for amplification to occur? - Answers - ✔✔Small change
in Eb and large change in Ic
What amplifiers are biased so collector current is zero for half, (one alteration) of the
input signal? - Answers - ✔✔Class B
What amplifiers are biased so that collector current is zero for a portion of one
alteration? - Answers - ✔✔Class AB
What amplifiers are biased so that collector current is zero for most of the input cycle? -
Answers - ✔✔Class C
___________ an amplifier distorts the output signal. - Answers - ✔✔Overdriving
Which amplifier has best fidelity? - Answers - ✔✔Class A
In which direction do holes appear to move? - Answers - ✔✔Opposite of electrons
Which quantity cannot be measured directly or derived using an oscilloscope? -
Answers - ✔✔Resistance
What value of AC voltage does an oscilloscope directly measure? - Answers - ✔✔Peak
to peak
What are oscilloscopes used to measure? - Answers - ✔✔-Wave shape
-Amplitude
CORRECT ANSWERS|A
GRADE(DOWNLOAD TO SCORE A) 2025
NEW UPDATE
Which element in a translate is used to produce a large number of current carriers? -
Answers - ✔✔Emitter
An open is the primary of a transformer causes no output voltage because
_______________. - Answers - ✔✔The open prevents magnetic fields from developing
The most common faults found in transformers are ____________. - Answers -
✔✔Shorts and opens
Which element in a transmitter is used to pass most of the current carriers? - Answers -
✔✔Base
In an NRN transistor, the base DC bias voltage must be _______. - Answers -
✔✔Positive compared to the emitter
Which amplifier has the best efficiency? - Answers - ✔✔Class C
Electrolytic capacitors are ____________. - Answers - ✔✔Polarized
What are the dielectric types used by capacitors? - Answers - ✔✔Electrolytic, ceramic,
and film
When an input is applied across the emitter to base PN junction, what is the relative
resistance? - Answers - ✔✔Low
When an input is applied across the collector to base PN junction, what is the relative
resistance? - Answers - ✔✔High
Alpha is the ratio of ________________. - Answers - ✔✔Ic to Ie (Ic/Ie)
The point when Ic no longer increases although base bias voltage increases is called? -
Answers - ✔✔Saturation
The point where Ib and Ic stop is called? - Answers - ✔✔Cutoff
, What happens in a transistor when the saturation point is reached? - Answers - ✔✔Ic
stops increasing
Capacitors are identified by their _______________. - Answers - ✔✔The type of
dielectric used
What happens in a transistor when base voltage reverse biases the emitter to base PN
junction? - Answers - ✔✔Cutoff occurs
The purpose of an _____________ is to increase signal strength. - Answers -
✔✔Amplifier
Transistor amplifiers require what type of signals to functions? - Answers - ✔✔DC bias
and AC input signals
What amplifiers are biased so the input signal occurs within the limits of cutoff and
saturation? - Answers - ✔✔Class A
What changes are necessary for amplification to occur? - Answers - ✔✔Small change
in Eb and large change in Ic
What amplifiers are biased so collector current is zero for half, (one alteration) of the
input signal? - Answers - ✔✔Class B
What amplifiers are biased so that collector current is zero for a portion of one
alteration? - Answers - ✔✔Class AB
What amplifiers are biased so that collector current is zero for most of the input cycle? -
Answers - ✔✔Class C
___________ an amplifier distorts the output signal. - Answers - ✔✔Overdriving
Which amplifier has best fidelity? - Answers - ✔✔Class A
In which direction do holes appear to move? - Answers - ✔✔Opposite of electrons
Which quantity cannot be measured directly or derived using an oscilloscope? -
Answers - ✔✔Resistance
What value of AC voltage does an oscilloscope directly measure? - Answers - ✔✔Peak
to peak
What are oscilloscopes used to measure? - Answers - ✔✔-Wave shape
-Amplitude
