MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Linear Integrated Circuit knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A_BASIC_FEEDBACK_OSCILLATOR_IS_SATISFYING_THE_BARKHAUSEN_CRITERION._IF_THE_‚ÄÖ√†√∂‚ÀÖ¬∫_VALUE_IS_GIVEN_AS_0.7072,_FIND_THE_GAIN_OF_BASIC_AMPLIFIER??$# |
| A. | 2.1216 |
| B. | 0.7072 |
| C. | 1 |
| D. | 1.414 |
| Answer» E. | |
| 2. |
Express the requirement for oscillation in polar form$ |
| A. | Aß =1∠360<sup>o</sup> |
| B. | Aß =1∠90<sup>o</sup> |
| C. | Aß =1∠π<sup>o</sup> |
| D. | Aß =1∠270<sup>o</sup> |
| Answer» B. A‚Äö√†√∂‚àö¬∫ =1‚Äö√Ñ√∂‚àö‚Ć‚Äö√тĆ90<sup>o</sup> | |
| 3. |
The feedback signal of basic sine wave oscillator is given as$ |
| A. | V<sub>f</sub> = Aß ×V<sub>o</sub> |
| B. | V<sub>f</sub> = Aß ×V<sub>i</sub> |
| C. | V<sub>f</sub> = Aß × (V<sub>o</sub>/ V<sub>i</sub>) |
| D. | V<sub>f</sub> = Aß × (V<sub>i</sub>/ V<sub>o</sub>) |
| Answer» C. V<sub>f</sub> = A‚Äö√†√∂‚àö¬∫ ‚Äö√†√∂‚àö‚â• (V<sub>o</sub>/ V<sub>i</sub>) | |
| 4. |
Name the type of noise signal present in the oscillation? |
| A. | Schmitt noise |
| B. | Schottky noise |
| C. | Saturation noise |
| D. | None of the mentioned |
| Answer» C. Saturation noise | |
| 5. |
Why it is difficult to maintain Barkhausen condition for oscillation? |
| A. | Due to variation in temperature |
| B. | Due to variation in supply voltage |
| C. | Due to variation in components life time |
| D. | All of the mentioned |
| Answer» E. | |
| 6. |
How sustained oscillation can be achieved? |
| A. | Maintaining |Aß| slightly greater than unity |
| B. | Maintaining |Aß| equal to unity |
| C. | Due to non-linearity of transistor |
| D. | Due to use of feedback network |
| Answer» D. Due to use of feedback network | |
| 7. |
What happens if |Aß| |
| A. | Oscillation will die down |
| B. | Oscillation will keep on increasing |
| C. | Oscillation remains constant |
| D. | Oscillation fluctuates |
| Answer» B. Oscillation will keep on increasing | |
| 8. |
What is the condition to achieve oscillations? |
| A. | |Aß|=1 |
| B. | ∠Aß=0<sup>o</sup> |
| C. | ∠Aß=multiples of 2π |
| D. | All the mentioned |
| Answer» E. | |
| 9. |
An oscillator is a type of |
| A. | Feedforward amplifier |
| B. | Feedback amplifier |
| C. | Waveform amplifier |
| D. | RC amplifier |
| Answer» C. Waveform amplifier | |
| 10. |
At what condition the output signal can be continuously obtained from input signal? |
| A. | When the product of input voltage and feedback voltage is equal to 1 |
| B. | When the product of amplifier gain and transfer ratio is equal to 1 |
| C. | When the product of feedback voltage and transfer ratio is equal to 1 |
| D. | When the product of amplifier gain and input voltage is equal to 1 |
| Answer» C. When the product of feedback voltage and transfer ratio is equal to 1 | |
| 11. |
What is Barkhausen criterion for oscillation? |
| A. | Aß > 1 |
| B. | Aß < 1 |
| C. | Aß = 1 |
| D. | Aß ≠ 1 |
| Answer» D. A‚Äö√†√∂‚àö¬∫ ‚Äö√Ñ√∂‚àö¬¢‚Äö√тĆ 1 | |