MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
Which of the following is an example of continuous wave analog modulation? |
| A. | PCM |
| B. | DPCM |
| C. | AM |
| D. | ADM |
| Answer» D. ADM | |
| 2. |
In automatic gain control of the AM receiver ________ |
| A. | gain of the receiver is adjusted |
| B. | gain adjustment depends upon the strength of received signal |
| C. | is an open-loop system |
| D. | gain is received only by stronger signals |
| Answer» B. gain adjustment depends upon the strength of received signal | |
| 3. |
One of the advantage of using analog communication over digital communication is that in analog communication less transmission bandwidth is required. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
IN_AUTOMATIC_GAIN_CONTROL_OF_THE_AM_RECEIVER_________?$ |
| A. | gain of the receiver is adjusted |
| B. | gain adjustment depends upon the strength of received signal |
| C. | is an open-loop system |
| D. | gain is received only by stronger signals |
| Answer» B. gain adjustment depends upon the strength of received signal | |
| 5. |
Which_of_the_following_is_an_example_of_continuous_wave_analog_modulation?$ |
| A. | PCM |
| B. | DPCM |
| C. | AM |
| D. | ADM |
| Answer» D. ADM | |
| 6. |
Bandwidth of RF amplifier for a color TV receiver is _______? |
| A. | equal to channel width |
| B. | more than channel width |
| C. | less than channel width |
| D. | twice of channel width |
| Answer» C. less than channel width | |
| 7. |
Generation of SSB-SC signal is done by ________ |
| A. | Phase discrimination method and Frequency discrimination method |
| B. | Phase discrimination method and Square law modulator |
| C. | Square law modulator and Frequency discrimination method |
| D. | Balanced modulator and Square law modulator |
| Answer» B. Phase discrimination method and Square law modulator | |
| 8. |
Mass of any moving system is represented by ________ |
| A. | combination of resistance and capacitance |
| B. | a capacitor |
| C. | combination of inductor and capacitor |
| D. | an inductance |
| Answer» E. | |
| 9. |
What is the maximum transmission efficiency of an AM signal? |
| A. | 33.33% |
| B. | 60.25% |
| C. | 38.75% |
| D. | 50.25% |
| Answer» B. 60.25% | |
| 10. |
According to Fourier analysis, square wave can be represented as ________ |
| A. | fundamental sine wave and even harmonics |
| B. | fundamental sine wave and odd harmonics |
| C. | fundamental sine wave and harmonics |
| D. | fundamental and sub harmonic sine wave |
| Answer» C. fundamental sine wave and harmonics | |
| 11. |
One of the advantage of using analog communication over digital communication is that in analog communication less transmission bandwidth is required? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Calculate the power in a DSB-SC signal, if the modulation is 60% and power of carrier wave is 600W? |
| A. | 120W |
| B. | 108W |
| C. | 111W |
| D. | 102W |
| Answer» C. 111W | |
| 13. |
TRF receivers are used for ________ |
| A. | Detection of modulating signal |
| B. | Removal of unwanted signal |
| C. | Mixing modulating signal with unwanted signal |
| D. | Both detection of modulating signal and removal of unwanted signal |
| Answer» E. | |