MCQOPTIONS
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MCQOPTIONS
This section includes 23 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 band-pass filter can be created by cascading a high-pass filter and a low-pass filter. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
An active filter uses capacitors and inductors in the feedback network. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
A Sallen-Key filter is a second-order filter. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
A second-order filter has a roll-off of –20 dB/decade. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
The bandwidth of a practical high-pass filter is infinite. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
A band-pass filter passes all frequencies within a band between a lower and an upper cutoff frequency. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
In filters, a single RC network is called a pole. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Butterworth filters have the characteristic of a very flat response in the passband and a roll-off of –20 dB/decade. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Filters with Bessel characteristics are used for filtering pulse waveforms. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
The gain of the multiple-feedback band-pass filter above is equal to which of the following? Assume C = C1 = C2. |
| A. | A0 = R2 / R1 |
| B. | A0 = R1 / R2 |
| C. | A0 = R2 / 2 R1 |
| D. | A0 = R1 / 2 R2 |
| Answer» D. A0 = R1 / 2 R2 | |
| 11. |
The bandwidth of a band-pass filter is the sum of the two cutoff frequencies. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
A ________ filter significantly attenuates all frequencies below fc and passes all frequencies above fc. |
| A. | low-pass |
| B. | high-pass |
| C. | band-pass |
| D. | band-stop |
| Answer» C. band-pass | |
| 13. |
Refer to this figure. Increasing the values of the filter section resistors in this circuit will cause the fc to |
| A. | increase. |
| B. | decrease. |
| C. | remain the same. |
| D. | increase and then decrease. |
| Answer» C. remain the same. | |
| 14. |
Refer to the given figure. RA = 2.2 k and RB = 1.2 k. This filter is probably a |
| A. | Butterworth type. |
| B. | Bessel type. |
| C. | Chebyshev type. |
| Answer» B. Bessel type. | |
| 15. |
Refer to the given figure. This circuit is known as a ________ filter, and the fc is ________. |
| A. | high-pass, 1.59 kHz |
| B. | band-pass, 15.9 kHz |
| C. | low-pass, 15.9 kHz |
| D. | high-pass, 15.9 kHz |
| Answer» E. | |
| 16. |
Name the filter that has two stop bands? |
| A. | Band-pass filter |
| B. | Low pass filter |
| C. | High pass filter |
| D. | Band-reject filter |
| Answer» B. Low pass filter | |
| 17. |
Determine the order of filter used, when the gain increases at the rate of 60dB/decade on the stop band. |
| A. | Second-order low pass filter |
| B. | Third-order High pass filter |
| C. | First-order low pass filter |
| D. | None of the mentioned |
| Answer» C. First-order low pass filter | |
| 18. |
Which among the following has the best stop band response? |
| A. | Butterworth filter |
| B. | Chebyshev filter |
| C. | Cauer filter |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 19. |
The gain of the first order low pass filter |
| A. | Increases at the rate 20dB/decade |
| B. | Increases at the rate 40dB/decade |
| C. | Decreases at the rate 20dB/decade |
| D. | Decreases at the rate 40dB/decade |
| Answer» D. Decreases at the rate 40dB/decade | |
| 20. |
In which filter the output and input voltages are equal in amplitude for all frequencies? |
| A. | All-pass filter |
| B. | High pass filter |
| C. | Low pass filter |
| D. | All of the mentioned |
| Answer» B. High pass filter | |
| 21. |
Given the lower and higher cut-off frequency of a band-pass filter are 2.5kHz and 10kHz. Determine its bandwidth. |
| A. | 750 Hz |
| B. | 7500 Hz |
| C. | 75000 Hz |
| D. | None of the mentioned |
| Answer» C. 75000 Hz | |
| 22. |
Which filter performs exactly the opposite to the band-pass filter? |
| A. | Band-reject filter |
| B. | Band-stop filter |
| C. | Band-elimination filter |
| D. | All of the mentioned |
| Answer» E. | |
| 23. |
Which filter type is called a flat-flat filter? |
| A. | Cauer filter |
| B. | Butterworth filter |
| C. | Chebyshev filter |
| D. | Band-reject filter |
| Answer» C. Chebyshev filter | |