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OP AMP AND TIMER 555 APPLICATIONS - Practice Mode
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Electronics Mechanic
OP AMP AND TIMER 555 APPLICATIONS
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1) What is the expansion of PRF related to frequency?
Power regulated frequency
Pulse repetition frequency
Pulse repetition frequency
Pulse probability frequency
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Correct Answer: Pulse repetition frequency
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1) What is the expansion of PRF related to frequency?
Power regulated frequency
Pulse repetition frequency
Pulse repetition frequency
Pulse probability frequency
2) What is the name of the ratio of ON-time pulse to the OFF-time pulse of multivibrator?
Control voltage
Pulse repetition
Pulse repetition
Threshold comparator
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Correct Answer: Pulse repetition
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2) What is the name of the ratio of ON-time pulse to the OFF-time pulse of multivibrator?
Control voltage
Pulse repetition
Pulse repetition
Threshold comparator
3) What is the function of pin number 4 of the IC 555?
Set
Reset
Reset
Threshold
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Correct Answer: Reset
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3) What is the function of pin number 4 of the IC 555?
Set
Reset
Reset
Threshold
4) Which is the output pin number IC 555 timer?
Pin number 6
Pin number 5
Pin number 5
Pin number 3
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Correct Answer: Pin number 3
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4) Which is the output pin number IC 555 timer?
Pin number 6
Pin number 5
Pin number 5
Pin number 3
5) What is the function of pin number 2 of IC 555 timer circuit?
"+VCC"
Trigger
Trigger
Reset
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Correct Answer: Trigger
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5) What is the function of pin number 2 of IC 555 timer circuit?
"+VCC"
Trigger
Trigger
Reset
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