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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
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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
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