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. |
Which of the following modulation is used in data communication? |
| A. | Pulse Modulation |
| B. | Amplitude Modulation |
| C. | Phase Modulation |
| D. | Frequency Modulation |
| Answer» B. Amplitude Modulation | |
| 2. |
Pulse Modulation can be used in automatic landing equipments. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Signal to quantization noise ratio in PCM system depends on _________ |
| A. | sampling rate |
| B. | signal bandwidth |
| C. | number of quantization levels |
| D. | nature of carrier wave |
| Answer» D. nature of carrier wave | |
| 4. |
Frequency Modulated system needs less bandwidth. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
PULSE_MODULATION_CAN_BE_USED_IN_AUTOMATIC_LANDING_EQUIPMENTS.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which_of_the_following_modulation_is_used_in_data_communication?$ |
| A. | Pulse Modulation |
| B. | Amplitude Modulation |
| C. | Phase Modulation |
| D. | Frequency Modulation |
| Answer» B. Amplitude Modulation | |
| 7. |
Signal to quantization noise ratio in PCM system depends on ________? |
| A. | sampling rate |
| B. | signal bandwidth |
| C. | number of quantization levels |
| D. | nature of carrier wave |
| Answer» D. nature of carrier wave | |
| 8. |
In which of the following modulated systems, quantization noise occurs? |
| A. | TDM |
| B. | FM |
| C. | PWD |
| D. | PCM |
| Answer» E. | |
| 9. |
In pulse transmitter, the ratio of time on to time off is called ________ |
| A. | base |
| B. | bandwidth |
| C. | duty cycle |
| D. | efficiency |
| Answer» D. efficiency | |
| 10. |
All the output pulses are at full transmitter power for a strong signal in all of the following except ________ |
| A. | PAM |
| B. | PFM |
| C. | PCM |
| D. | PWM |
| Answer» B. PFM | |
| 11. |
Which modulation is used in microwave band? |
| A. | Amplitude Modulation |
| B. | Pulse Modulation |
| C. | Frequency Modulation |
| D. | Phase Modulation |
| Answer» C. Frequency Modulation | |
| 12. |
When bandwidth is the major consideration a narrow and wide band FM can be approximated to? |
| A. | DSB-SC |
| B. | SSB |
| C. | VSB |
| D. | AM |
| Answer» E. | |
| 13. |
Frequency Modulated system needs less bandwidth? |
| A. | True |
| B. | False |
| Answer» C. | |