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. |
DM stands for ________ |
| A. | Density Modulation |
| B. | Delta Modulation |
| C. | Double Side Band Modulation |
| D. | Direct Modulation |
| Answer» C. Double Side Band Modulation | |
| 2. |
Granular noise occurs in Delta Modulation, when ____________ |
| A. | pulse rate decreases |
| B. | pulse amplitude decreases |
| C. | modulating signal increases |
| D. | modulating signal remains constant |
| Answer» E. | |
| 3. |
FM signals can be generated by using ________ |
| A. | Varacter diode |
| B. | Laser diode |
| C. | Backward diode |
| D. | Gunn diode |
| Answer» B. Laser diode | |
| 4. |
Carson’s rule is used to ________ |
| A. | calculate Bandwidth of FM signal |
| B. | calculate SNR of FM signal |
| C. | determine the carrier frequency |
| D. | calculate Figure of merit of FM signal |
| Answer» B. calculate SNR of FM signal | |
| 5. |
GRANULAR_NOISE_OCCURS_IN_DELTA_MODULATION,_WHEN_____________?$ |
| A. | pulse rate decreases |
| B. | pulse amplitude decreases |
| C. | modulating signal increases |
| D. | modulating signal remains constant |
| Answer» E. | |
| 6. |
DM_stands_for_________$ |
| A. | Density Modulation |
| B. | Delta Modulation |
| C. | Double Side Band Modulation |
| D. | Direct Modulation |
| Answer» C. Double Side Band Modulation | |
| 7. |
FM signals can be generated by using _______? |
| A. | Varacter diode |
| B. | Laser diode |
| C. | Backward diode |
| D. | Gunn diode |
| Answer» B. Laser diode | |
| 8. |
Which filter is used to get back the original signal from sampled signal? |
| A. | low pass filter |
| B. | high pass filter |
| C. | band pass filter |
| D. | band reject filter |
| Answer» B. high pass filter | |
| 9. |
Which among the following is not necessarily the advantage of SSB over AM? |
| A. | required bandwidth for SSB is low |
| B. | less power handled |
| C. | complex circuit |
| D. | simple circuit |
| Answer» E. | |
| 10. |
Full AM signal is preferred over SSB in broadcasting purpose because ________ |
| A. | generation of full AM is easier |
| B. | detection of full AM is simpler |
| C. | requires large bandwidth |
| D. | for both detection and generation of full AM |
| Answer» C. requires large bandwidth | |
| 11. |
Balance modulator is used to produce __________ |
| A. | DSB |
| B. | VSB |
| C. | AM |
| D. | SSB |
| Answer» B. VSB | |
| 12. |
Which of the following determines carrier deviation in frequency modulation? |
| A. | modulating voltage |
| B. | modulating frequency |
| C. | frequency deviation |
| D. | modulating phase |
| Answer» B. modulating frequency | |
| 13. |
Which of the following is an indirect way of generating frequency modulated signals? |
| A. | Armstrong modulator |
| B. | Varacter diode modulator |
| C. | Reactance FET modulator |
| D. | Reactance modulator |
| Answer» B. Varacter diode modulator | |