MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the value of a THDF for a symmetrical triangle wave? |
| A. | 48.3% |
| B. | 80.3% |
| C. | 12.1% |
| D. | 37.0% |
| Answer» D. 37.0% | |
| 2. |
What is the value of a THDF for a sawtooth wave? |
| A. | 48.3% |
| B. | 80.3% |
| C. | 12.1% |
| D. | 37.0% |
| Answer» C. 12.1% | |
| 3. |
What happens to the gap between THDF and THDR for higher order harmonic distortion?
|
| A. | Decreases |
| B. | Remains unchanged |
| C. | Not related |
| Answer» B. Remains unchanged | |
| 4. |
What is the value of a THDF for a square wave? |
| A. | 48.3% |
| B. | 80.3% |
| C. | 12.1% |
| D. | 37.0% |
| Answer» B. 80.3% | |
| 5. |
What is the total harmonic distortion if the amplitude of first harmonic distortion is 20dB, second harmonic distortion 25dB and external noise is 10dB? |
| A. | 11.2dB |
| B. | 11.52dB |
| C. | 11.25dB |
| D. | 11.5dB |
| Answer» D. 11.5dB | |
| 6. |
Lower order harmonics are harder to hear compared to the higher order harmonics. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
What is the higher order harmonics of order 5 of a wave form with fundamental frequency of 50Hz? |
| A. | 50Hz |
| B. | 150Hz |
| C. | 250Hz |
| D. | 100Hz |
| Answer» D. 100Hz | |
| 8. |
What does THD+N represent in higher order harmonic distortion? |
| A. | Noise |
| B. | Higher order distortion |
| C. | Higher order distortion with noise component |
| D. | Second order distortion with noise component |
| Answer» D. Second order distortion with noise component | |