MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Avionics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the output of a digital to analog converter? |
| A. | Smooth continuous wave |
| B. | Stairstep wave |
| C. | Triangular waves |
| D. | Circular waves |
| Answer» C. Triangular waves | |
| 2. |
What is the 5th harmonic of the rectangular digital wave if the frequency is 14kHz? |
| A. | 21kHz |
| B. | 45kHz |
| C. | 25kHz |
| D. | 70kHz |
| Answer» E. | |
| 3. |
What is the signal frequency if the rectangular digital wave has a time period of 71.4μs? |
| A. | 14,006Hz |
| B. | 15,036Hz |
| C. | 14Hz |
| D. | 21,436Hz |
| Answer» B. 15,036Hz | |
| 4. |
What is the rms noise voltage if the weight of the LSB is 0.005865? |
| A. | 5mV |
| B. | 1mV |
| C. | 1.7mV |
| D. | 0.7mV |
| Answer» D. 0.7mV | |
| 5. |
What is the maximum amount of quantization error that can occur in a 10bit system in the input analog voltage is from 0V to 6V? |
| A. | 10mV |
| B. | 6mV |
| C. | 0.5mV |
| D. | 1mV |
| Answer» C. 0.5mV | |
| 6. |
What is the error that occurs when the number of bits is not sufficient enough to represent the analog voltages? |
| A. | Data error |
| B. | Sampling error |
| C. | Acquisition error |
| D. | Quantization error |
| Answer» E. | |
| 7. |
What is the number of voltage increments that can be represented in an 8-bit system? |
| A. | 255 |
| B. | 256 |
| C. | 215 |
| D. | 126 |
| Answer» B. 256 | |
| 8. |
What is the minimum rate at which an analog signal of frequency 6000Hz is sampled? |
| A. | 6000Hz |
| B. | 60Hz |
| C. | 120Hz |
| D. | 12000Hz |
| Answer» E. | |
| 9. |
What is the minimum frequency of sampling so that the analog waveform is adequately expressed? |
| A. | Minimum sampling rate |
| B. | Minimum sampling frequency |
| C. | Nyquist frequency |
| D. | Conversion rate |
| Answer» D. Conversion rate | |
| 10. |
The process of converting a continuous analog signal to a discrete digital signal is called? |
| A. | Discretisation |
| B. | Sampling |
| C. | Preemphasis |
| D. | Reduction |
| Answer» C. Preemphasis | |
| 11. |
What is the main role of an ADC? |
| A. | Amplify |
| B. | Convert analog to digital |
| C. | Reduce noise |
| D. | Increase range |
| Answer» C. Reduce noise | |