MCQOPTIONS
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MCQOPTIONS
This section includes 65 Mcqs, each offering curated multiple-choice questions to sharpen your Active Filter Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
A 311 IC is an example of an eight-pin DIP that can be made to function as a ________. |
| A. | comparator |
| B. | 555 timer |
| C. | D to A converter |
| D. | ladder network |
| Answer» B. 555 timer | |
| 52. |
What is the function of a ladder network? |
| A. | Changing an analog signal to a digital signal |
| B. | Changing a linear signal to a digital signal |
| C. | Changing a digital signal to an analog signal |
| D. | None of the above |
| Answer» D. None of the above | |
| 53. |
Which of the slope intervals of the integrator does the counter in the analog-to-digital converter (ADC) operate? |
| A. | Positive |
| B. | Negative |
| C. | Both positive and negative |
| D. | Neither positive nor negative |
| Answer» D. Neither positive nor negative | |
| 54. |
This figure is a block diagram of a(n) ________. |
| A. | ADC |
| B. | DAC |
| C. | comparator |
| D. | 555 timer |
| Answer» B. DAC | |
| 55. |
Which of the following applications include a phase-locked loop (PLL) circuit? |
| A. | Modems |
| B. | Am decoders |
| C. | Tracking filters |
| D. | All of the above |
| Answer» E. | |
| 56. |
Which application best describes this 555 timer circuit? |
| A. | Monostable multivibrator |
| B. | Astable multivibrator |
| C. | Bistable multivibrator |
| D. | Free-running multivibrator |
| Answer» B. Astable multivibrator | |
| 57. |
The voltage-controlled oscillator is a subset of the "test bench" function generator. |
| A. | True |
| B. | False |
| C. | - |
| D. | - |
| Answer» B. False | |
| 58. |
On which of the following does the conversion depend in ladder-network conversion? |
| A. | Comparator |
| B. | Control logic |
| C. | Digital counter |
| D. | Clock |
| Answer» B. Control logic | |
| 59. |
What is the maximum conversion time of a clock rate of 1 MHz operating a 10-stage counter in an ADC? |
| A. | 1.024 s |
| B. | 102.3 ms |
| C. | 10.24 ms |
| D. | 1.024 ms |
| Answer» E. | |
| 60. |
What is the first phase of the dual-slope method of conversion? |
| A. | Connecting the analog voltage to the integrator for a fixed time |
| B. | Setting the counter to zero |
| C. | Connecting the integrator to a reference voltage |
| D. | All of the above |
| Answer» B. Setting the counter to zero | |
| 61. |
Which of the following is (are) the results of improvements built into a comparator IC? |
| A. | Faster switching between the two output levels |
| B. | Noise immunity |
| C. | Outputs capable of directly driving a variety of loads |
| D. | All of the above |
| Answer» E. | |
| 62. |
A 339 IC is an example of a fourteen-pin DIP that can be made to function as a ________. |
| A. | comparator |
| B. | 555 timer |
| C. | D to A converter |
| D. | ladder network |
| Answer» B. 555 timer | |
| 63. |
What is the minimum number of conversions per second of a clock rate of 1 MHz operating a 10-stage counter in an ADC? |
| A. | 1000 |
| B. | 976 |
| C. | 769 |
| D. | 697 |
| Answer» C. 769 | |
| 64. |
Which of the following is not a linear/digital IC? |
| A. | Phase-locked loop |
| B. | Voltage-controlled oscillator |
| C. | Passive filter |
| D. | Comparator |
| Answer» D. Comparator | |
| 65. |
What is the level of the output voltage of a ladder-network conversion? |
| A. | The analog output voltage proportional to the digital input voltage |
| B. | The digital output voltage proportional to the linear input voltage |
| C. | A fixed digital value V ref |
| D. | A fixed analog value V ref |
| Answer» B. The digital output voltage proportional to the linear input voltage | |