MCQOPTIONS
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MCQOPTIONS
This section includes 10 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 steps is not included in the process of reception? |
| A. | encoding |
| B. | decoding |
| C. | demodulating |
| D. | filtering |
| Answer» B. decoding | |
| 2. |
WHICH_OF_THE_FOLLOWING_STATEMENT_IS_FALSE??$ |
| A. | Modulation is used to reduce the bandwidth |
| B. | Modulation is used to separate different transmissions |
| C. | Modulation is used to allow the use of practical antennas |
| D. | Modulation is used to ensure that wave is transmitted over long distances |
| Answer» B. Modulation is used to separate different transmissions | |
| 3. |
Which_of_the_steps_is_not_included_in_the_process_of_reception?$ |
| A. | encoding |
| B. | decoding |
| C. | demodulating |
| D. | filtering |
| Answer» B. decoding | |
| 4. |
What points must be important to remember, when we deal with random noise calculations? |
| A. | all calculations are based on peak to peak values |
| B. | calculations are based on quantised values |
| C. | calculations are based on average values |
| D. | calculations are based on RMS values |
| Answer» E. | |
| 5. |
FDM is an analog multiplexing technique used to combines ________ |
| A. | analog signals |
| B. | digital signals |
| C. | time invariant signal |
| D. | even signal |
| Answer» B. digital signals | |
| 6. |
Which of broad classifications of noise are most difficult to treat? |
| A. | noise generated in the receiver |
| B. | noise generated in the transmitter |
| C. | external noise |
| D. | internal noise |
| Answer» B. noise generated in the transmitter | |
| 7. |
Which one of the following statement is false? |
| A. | High Frequency mixers are generally noisier |
| B. | Voltage of impulse noise is independent of bandwidth |
| C. | Thermal noise is not dependent on frequency |
| D. | Flicker noise occurs at low frequency |
| Answer» C. Thermal noise is not dependent on frequency | |
| 8. |
TDM stands for ________ |
| A. | Time Division Multiplexing |
| B. | Time Difference Multiplexing |
| C. | Time Division Method |
| D. | Timing Difference Method |
| Answer» B. Time Difference Multiplexing | |
| 9. |
Which one of the following noise becomes of great importance at high frequencies? |
| A. | flicker noise |
| B. | shot noise |
| C. | impulse noise |
| D. | transit-time noise |
| Answer» E. | |
| 10. |
Why a helical antenna is used for satellite tracking? |
| A. | because of its circular polarization |
| B. | because of its broad bandwidth |
| C. | because of its low bandwidth |
| D. | because of rectangular polarization |
| Answer» B. because of its broad bandwidth | |