MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Inductance and capacitance of a line is 0.8 μH⁄m and 32 pF⁄m. Find Z0? |
| A. | 158 |
| B. | 166 |
| C. | 143 |
| D. | 127 |
| Answer» B. 166 | |
| 2. |
COMPANDING_IS_USED_IN_PCM_TRANSMITTERS_TO_ALLOW_AMPLITUDE_LIMITING_IN_THE_RECEIVERS.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
What_is_the_use_of_Companding?$ |
| A. | in PCM transmitters to allow amplitude limiting in the receivers |
| B. | in PCM receiver to overcome impulse noise |
| C. | to overcome quantizing noise in PCM |
| D. | to protect small signals in PCM from quantizing distortion |
| Answer» E. | |
| 4. |
Which of the following frequency is not transmitted in AM transmission? |
| A. | Upper side band frequency |
| B. | Carrier frequency |
| C. | Lower side band frequency |
| D. | Audio frequency |
| Answer» E. | |
| 5. |
Quantization noise depends upon both sampling rate and number of quantization levels. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
In AM pilot carrier, transmission has ________ |
| A. | carrier and part of one side band |
| B. | two side bands and a carrier |
| C. | two side bands |
| D. | carrier, one side band and part of other side band |
| Answer» C. two side bands | |
| 7. |
What the main advantage of PCM? |
| A. | can travel small distances |
| B. | higher bandwidth |
| C. | lower noise |
| D. | good reception |
| Answer» D. good reception | |
| 8. |
Pulse communication system that is inherently highly immune to noise is ________ |
| A. | PCM |
| B. | PPM |
| C. | PAM |
| D. | PWM |
| Answer» B. PPM | |
| 9. |
Inductance and capacitance of a line is 0.8 μH⁄m and 32 pF⁄m. Find Z0?$ |
| A. | 158 |
| B. | 166 |
| C. | 143 |
| D. | 127 |
| Answer» B. 166 | |
| 10. |
Which is the greatest disadvantage of Pulse Code Modulation? |
| A. | highly prone to noise |
| B. | cannot travel long distances |
| C. | its inability to handle analog signals |
| D. | large bandwidth is required for it |
| Answer» E. | |
| 11. |
Quantization noise occurs in ________ |
| A. | Frequency Division Multiplexing |
| B. | Time Division Multiplexing |
| C. | Delta Modulation |
| D. | Amplitude Modulation |
| Answer» E. | |