MCQOPTIONS
Saved Bookmarks
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. |
A noise can be represented as superposition of spectral components. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
For demodulation of PCM, it is first converted into __________ |
| A. | PDM |
| B. | PWM |
| C. | PPM |
| D. | PAM |
| Answer» E. | |
| 3. |
The amount of power and bandwidth necessary to be transmitted for a given amount of information are reduced in _________ |
| A. | Single Sideband Modulation |
| B. | Double Sideband Modulation |
| C. | Vestigial Sideband Modulation |
| D. | Amplitude Modulation |
| Answer» B. Double Sideband Modulation | |
| 4. |
THE_AMOUNT_OF_POWER_AND_BANDWIDTH_NECESSARY_TO_BE_TRANSMITTED_FOR_A_GIVEN_AMOUNT_OF_INFORMATION_ARE_REDUCED_IN__________?$ |
| A. | Single Sideband Modulation |
| B. | Double Sideband Modulation |
| C. | Vestigial Sideband Modulation |
| D. | Amplitude Modulation |
| Answer» B. Double Sideband Modulation | |
| 5. |
A noise can be represented as superposition of spectral components? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
For demodulation of PCM, it is first converted into _________? |
| A. | PDM |
| B. | PWM |
| C. | PPM |
| D. | PAM |
| Answer» E. | |
| 7. |
In SSB modulation, only a single sideband is transmitted leaving the other sideband and the carrier. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which among the following is Analog Continuous Modulation technique? |
| A. | PAM |
| B. | PCM |
| C. | AM |
| D. | PWM |
| Answer» D. PWM | |
| 9. |
Which of the following modulation system is used for video-modulation? |
| A. | DSB-SC |
| B. | SSB-SC |
| C. | VSB |
| D. | FM |
| Answer» D. FM | |
| 10. |
In FM, if we decreases modulating frequency then the modulation index ________ |
| A. | will increase, if the modulating voltage amplitude increases |
| B. | will decrease, if the modulating voltage amplitude increases |
| C. | will increase, if the modulating voltage amplitude remains constant |
| D. | will decrease, if the modulating voltage amplitude remains constant |
| Answer» D. will decrease, if the modulating voltage amplitude remains constant | |
| 11. |
A long wave AM broadcast transmitter needs _________ |
| A. | very small carrier power |
| B. | very large carrier power |
| C. | small carrier power |
| D. | large carrier power |
| Answer» C. small carrier power | |
| 12. |
UHF stands for ________ |
| A. | Ultra High Electric Field |
| B. | Ultraviolet High Frequency |
| C. | Ultra High Frequency |
| D. | Ultra High Magnetic Field |
| Answer» D. Ultra High Magnetic Field | |
| 13. |
The spectrum of white noise and impulse noise is similar in terms of ________ |
| A. | magnitude spectrum |
| B. | phase spectrum |
| C. | both magnitude spectrum and phase spectrum |
| D. | amplitude spectrum |
| Answer» B. phase spectrum | |