ATT EXAM SCRIPT WITH VERIFIED
QUESTIONS AND ANSWERS
●● What are multivibrators made of?
Answer: 2 transistors and a feedback circuit
●● Free running Multivibrators generate a square wave output....
Answer: Anytime the operating voltage is applied.
●● Triggered multivibrators produce a square wave...
Answer: When an external input is applied.
●● The type of multivibrator circuit depends on...
Answer: The feedback circuit components
●● An astable multivibrator has no...
Answer: Stable state condition, it is free running
●● A monostable multivibrator has...
Answer: One stable state, it is triggered
●● A bistable multivibrator has...
, Answer: Two stable states, it is triggered
●● A stable state is...
Answer: A steady condition(output stays the same)
●● What happens when power is applied in an Astable Multivibrator?
Answer: Q1 and Q2 switch between on or off.
●● What happens to Q1 and Q2 in a monostable multivibrator?
Answer: Q2 is on, Input pulse causes Q2 to turn off and Q1 to turn on
●● A transistor in a multivibrator is on in ____________
Answer: Saturation
●● A transistor in a multivibrator is off in __________
Answer: Cutoff
●● What happens to Q1 and Q2 in a bistable multivibrator?
Answer: Either Q1 or Q2 could be on, input pulse causes either to turn
off and the other to turn on.
●● How is an Astable multivibrator identified?
QUESTIONS AND ANSWERS
●● What are multivibrators made of?
Answer: 2 transistors and a feedback circuit
●● Free running Multivibrators generate a square wave output....
Answer: Anytime the operating voltage is applied.
●● Triggered multivibrators produce a square wave...
Answer: When an external input is applied.
●● The type of multivibrator circuit depends on...
Answer: The feedback circuit components
●● An astable multivibrator has no...
Answer: Stable state condition, it is free running
●● A monostable multivibrator has...
Answer: One stable state, it is triggered
●● A bistable multivibrator has...
, Answer: Two stable states, it is triggered
●● A stable state is...
Answer: A steady condition(output stays the same)
●● What happens when power is applied in an Astable Multivibrator?
Answer: Q1 and Q2 switch between on or off.
●● What happens to Q1 and Q2 in a monostable multivibrator?
Answer: Q2 is on, Input pulse causes Q2 to turn off and Q1 to turn on
●● A transistor in a multivibrator is on in ____________
Answer: Saturation
●● A transistor in a multivibrator is off in __________
Answer: Cutoff
●● What happens to Q1 and Q2 in a bistable multivibrator?
Answer: Either Q1 or Q2 could be on, input pulse causes either to turn
off and the other to turn on.
●● How is an Astable multivibrator identified?