1|Page
ATT TEST 8 EXAM NEWEST 2025 ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW!!
If input voltage decreases in voltage regulator, Q2 must do what
to maintain constant output? - ANSWER-Decrease resistance to
drop less voltage (voltage of Q2 decrease)
If load current increases in voltage regulator, how is base to
emitter biasing affected? - ANSWER-FB increases
If load current decreases in voltage regulator, how is base to
emitter biasing affected? - ANSWER-FB decreases
If load current increases in voltage regulator what needs to be
done to maintain constant output? - ANSWER-Decrease
resistance to drop less voltage
If load current increases in voltage regulator, what needs to be
done to maintain constant output? - ANSWER-Decrease
resistance to drop less volts
, 2|Page
What two conditions cause Vout to INCREASE in voltage
regulator? - ANSWER-Input voltage increases or load current
decreases
What two conditions cause Vout to DECREASE in voltage
regulator? - ANSWER-Input voltage decreases or load current
increases
What are the most common faults in voltage regulators? -
ANSWER-Semiconductor components (transistors/diodes)
In a zener diode regulator, which faults cause output voltage to
approach applied voltage? - ANSWER-D1 open, Short between
Collector-Emitter
In zener diode regulator, which faults cause output voltage to be
0V? - ANSWER-D1 short/R1 Open, open between Base-Emitter
Which fault in zener diode regulation can damage diode? -
ANSWER-R1 short
How do you calculate base voltage of Q1 in voltage regulator? -
ANSWER-Vz + Vce = Vb
ATT TEST 8 EXAM NEWEST 2025 ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+||BRAND NEW!!
If input voltage decreases in voltage regulator, Q2 must do what
to maintain constant output? - ANSWER-Decrease resistance to
drop less voltage (voltage of Q2 decrease)
If load current increases in voltage regulator, how is base to
emitter biasing affected? - ANSWER-FB increases
If load current decreases in voltage regulator, how is base to
emitter biasing affected? - ANSWER-FB decreases
If load current increases in voltage regulator what needs to be
done to maintain constant output? - ANSWER-Decrease
resistance to drop less voltage
If load current increases in voltage regulator, what needs to be
done to maintain constant output? - ANSWER-Decrease
resistance to drop less volts
, 2|Page
What two conditions cause Vout to INCREASE in voltage
regulator? - ANSWER-Input voltage increases or load current
decreases
What two conditions cause Vout to DECREASE in voltage
regulator? - ANSWER-Input voltage decreases or load current
increases
What are the most common faults in voltage regulators? -
ANSWER-Semiconductor components (transistors/diodes)
In a zener diode regulator, which faults cause output voltage to
approach applied voltage? - ANSWER-D1 open, Short between
Collector-Emitter
In zener diode regulator, which faults cause output voltage to be
0V? - ANSWER-D1 short/R1 Open, open between Base-Emitter
Which fault in zener diode regulation can damage diode? -
ANSWER-R1 short
How do you calculate base voltage of Q1 in voltage regulator? -
ANSWER-Vz + Vce = Vb
