# MCQs on Oscillator Requirements and Feedback ## Oscillator Requirements and Feedback (Definition)

An Oscillator is an electronic circuit which converts DC energy into AC energy. It gives output without applying input because of feedback. The Oscillator uses positive or regenerative feedback.  The device which converts AC power to DC is called Converter otherwise, the device converts DC to AC energy is called Inverter. An oscillator gives an output of constant amplitude and frequency waveform. All the MCQs on Oscillator Requirements and Feedback Questions and Answers are published according to the new study syllabus for the academic year 2022.

Read More: MCQs on Amplifier Circuits Objective Questions

The aim is to provide MCQs on Oscillator Requirements and Feedback objective questions and answers to understand how to understand the concept of Oscillator. If you are willing to learn the concepts of Basic Electronics MCQs multiple choice questions with answer then read all the multiple choice questions and answers completely. You will be surely qualify for all kinds of Quiz / tests / Interviews after understanding the Introduction To Oscillator. If you are a students, technician or teacher then you can learn the basic concept of Oscillator requirement, feedback, principle, function and applications.

### Oscillator Requirements and Feedback MCQs (Online Quiz)

Q1. Oscillator circuit converts DC energy into ________.

1. Very Low Frequency AC energy
2. Very High Frequency DC energy
3. Low Frequency AC energy
4. Very High Frequency AC energy

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Q2. Oscillator is a circuit that gives AC output without any input.         True / False

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Q3. Oscillator is an electronic source of AC current or voltage which gives ______ shape at output.

1. Sine Wave
2. Sawtooth/Pulse Wave
3. Square Wave
4. All are correct

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Q4. Oscillator is an unstable amplifier.         True / False

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Q5. A device which converts AC power to DC power called ________.

1. Converter
2. Rectifier
3. Inverter
4. a & b are correct

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Q6. A device which converts DC power into AC power is called Inverter.         True / False

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Q7. Basically an Oscillator works as a _________.

1. Converter
2. Inverter
3. Rectifier

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Q8. Oscillators are used in almost every electronic device such as Radio, TV, Communication, Microwave System, Satellite and Computer etc.                     True / False

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Q9. ________ feedback is used in oscillator for input.

1. Negative
2. Positive

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Q10. The basic purpose of an oscillator is to produce a waveform with constant amplitude and frequency.               True / False

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Q11. A non-inverting amplifier is used in oscillator circuit for _________.

1. Amplification
2. Gain
3. Inductance
4. a & b are correct

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Q12. when a small part of an output of amplifier gives on input without phase difference is called positive feedback.           True / False

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Q13. The basic purpose of using amplitude limiting device at output of an amplifier is _______.

1. Desired Frequency
2. Controlled Amplitude
3. All are correct

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Q14. If the input of an amplifier becomes strong with feedback then it is called Positive or Regenerative feedback.             True / False

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Q15. If the input of  an amplifier becomes weak after feedback then it is called ________.

1. Negative Feedback
2. Regenerative Feedback
3. Degenerative Feedback
4. a & c are correct

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Q16. The positive feedback is an important need of an amplifier when there is no input signal applied.                                                                                                                                                                                                True / False

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Q17. The condition for an amplifier to work as an oscillator is ________.

1. Positive Feedback
2. Zero Degree Phase Shift
3. Unity Gain
4. All are correct