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. |
Diameter of antenna is doubled. The maximum range will ________ |
| A. | be doubled |
| B. | be halved |
| C. | become four times |
| D. | decrease to one fourth |
| Answer» B. be halved | |
| 2. |
FSK system involves ________ |
| A. | frequency modulation |
| B. | pulse modulation |
| C. | amplitude modulation |
| D. | phase modulation |
| Answer» B. pulse modulation | |
| 3. |
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 | |
| 4. |
Mass of any moving system is represented by ________ |
| A. | a resistance |
| B. | a conductance |
| C. | a resistivity |
| D. | an inductance |
| Answer» E. | |
| 5. |
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 | |
| 6. |
What do you understand by the term “carrier”? |
| A. | waveform with constant frequency, phase and amplitude |
| B. | waveform for which frequency, amplitude or phase is varied |
| C. | waveform with high amplitude, low frequency and constant phase |
| D. | waveform to be transmitted |
| Answer» C. waveform with high amplitude, low frequency and constant phase | |
| 7. |
FSK_SYSTEM_INVOLVES_________?$ |
| A. | frequency modulation |
| B. | pulse modulation |
| C. | amplitude modulation |
| D. | phase modulation |
| Answer» B. pulse modulation | |
| 8. |
Diameter_of_antenna_is_doubled._The_maximum_range_will_________$ |
| A. | be doubled |
| B. | be halved |
| C. | become four times |
| D. | decrease to one fourth |
| Answer» B. be halved | |
| 9. |
Contrast function in TV is done by ________ |
| A. | Luminance amplifier |
| B. | Schmitt trigger |
| C. | Band Pass Filter |
| D. | Chroma amplifier |
| Answer» B. Schmitt trigger | |
| 10. |
PDM is generated by ________ |
| A. | Bistable multivibrator |
| B. | Monostable multivibrator |
| C. | Astable multivibrator |
| D. | Schmitt trigger |
| Answer» C. Astable multivibrator | |
| 11. |
What do you understand by the term “carrier”?$ |
| A. | waveform with constant frequency, phase and amplitude |
| B. | waveform for which frequency, amplitude or phase is varied |
| C. | waveform with high amplitude, low frequency and constant phase |
| D. | waveform to be transmitted |
| Answer» C. waveform with high amplitude, low frequency and constant phase | |
| 12. |
Most commonly used modulation system for telegraphy is ________ |
| A. | Multi-tone modulation |
| B. | Single tone modulation |
| C. | PCM |
| D. | FSK |
| Answer» E. | |
| 13. |
Detection is same as ________ |
| A. | Modulation |
| B. | Mixing |
| C. | Filtering |
| D. | Demodulation |
| Answer» E. | |