MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Why filters are required in class D amplifier? |
| A. | Output is completely dependent on the lower frequency spectrum |
| B. | To increase the complexity |
| C. | To obtain only lower frequency |
| D. | To nullify noise |
| Answer» B. To increase the complexity | |
| 2. |
What is the conduction angle of class D amplifier? |
| A. | 180 |
| B. | 270 |
| C. | 0 |
| D. | 90 |
| Answer» D. 90 | |
| 3. |
WHY_FILTERS_ARE_REQUIRED_IN_CLASS_D_AMPLIFIER??$ |
| A. | Output is completely dependent on the lower frequency spectrum |
| B. | To increase the complexity |
| C. | To obtain only lower frequency |
| D. | To nullify noise |
| Answer» B. To increase the complexity | |
| 4. |
Why the cost of MOSFET based power amplifier is less? |
| A. | High impedance |
| B. | Low capacitance |
| C. | Low power dissipation |
| D. | Lesser in size |
| Answer» D. Lesser in size | |
| 5. |
Which of the following is true about MOSFET class D amplifier? |
| A. | It has infinite gain |
| B. | It is less stable |
| C. | It is less advantageous |
| D. | It dissipates less heat |
| Answer» E. | |
| 6. |
MOSFET class D amplifier is more advantageous than BJT class D amplifier. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Efficiency of class D amplifier____________ |
| A. | 100% |
| B. | 59% |
| C. | 75% |
| D. | 60% |
| Answer» B. 59% | |
| 8. |
Which of the following is true about class D amplifier? |
| A. | Its efficiency is very less |
| B. | It can be made to work as bulb |
| C. | It is big in size |
| D. | It operates on lesser frequently |
| Answer» E. | |
| 9. |
Which of the following is an example for the application of class D amplifier? |
| A. | Switch |
| B. | Torch |
| C. | Pulse generator |
| D. | Bulb |
| Answer» D. Bulb | |
| 10. |
For an ideal class D amplifier, what time is required in transitioning between states? |
| A. | 0 |
| B. | 10 |
| C. | 100 |
| D. | Infinite |
| Answer» B. 10 | |
| 11. |
Why a class D amplifier is called as switching amplifier? |
| A. | Because it consists of a transistor |
| B. | Because of high power |
| C. | Because of less noise effect |
| D. | Because of binary switch |
| Answer» E. | |