MCQOPTIONS
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MCQOPTIONS
This section includes 16 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. |
Relationship between amplitude and frequency is represented by ________ |
| A. | Time-domain plot |
| B. | Phase-domain plot |
| C. | Frequency-domain plot |
| D. | Amplitude-domain plot |
| Answer» D. Amplitude-domain plot | |
| 2. |
Low frequency noise is ________ |
| A. | Flicker noise |
| B. | Shot noise |
| C. | Thermal noise |
| D. | Partition Noise |
| Answer» B. Shot noise | |
| 3. |
Quantization is a _____ process. |
| A. | Non linear |
| B. | Reversible |
| C. | Non linear & Reversible |
| D. | None of the mentioned |
| Answer» B. Reversible | |
| 4. |
In a standard matrix set code-word there are _______ cosset. |
| A. | 2k |
| B. | 2n+k |
| C. | 2n-k |
| D. | 2n |
| Answer» D. 2n | |
| 5. |
In binary symmetric channel, in the demodulator _____ decision is made. |
| A. | Hard |
| B. | Soft |
| C. | Hard & Soft |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 6. |
Hadamard matrix is given as |
| A. | H2 = H1 H1 H1 H1 |
| B. | H2 = H1 H1 H1'H1 |
| C. | H2 = H1 H1 H1 H1' |
| D. | H2 = H1'H1 H1 H1 |
| Answer» D. H2 = H1'H1 H1 H1 | |
| 7. |
A_FUNCTION_F(X)_IS_EVEN,_WHEN??$ |
| A. | f(x) = -f(x) |
| B. | f(x) = f(-x) |
| C. | f(x) = -f(x)f(-x) |
| D. | f(x) = f(x)f(-x) |
| Answer» C. f(x) = -f(x)f(-x) | |
| 8. |
Relationship between amplitude and frequency is represented by _______? |
| A. | Time-domain plot |
| B. | Phase-domain plot |
| C. | Frequency-domain plot |
| D. | Amplitude-domain plot |
| Answer» D. Amplitude-domain plot | |
| 9. |
Low frequency noise is _______? |
| A. | Flicker noise |
| B. | Shot noise |
| C. | Thermal noise |
| D. | Partition Noise |
| Answer» B. Shot noise | |
| 10. |
What is the advantage of superheterodyning? |
| A. | High selectivity and sensitivity |
| B. | Low Bandwidth |
| C. | Low adjacent channel rejection |
| D. | Low fidelity |
| Answer» B. Low Bandwidth | |
| 11. |
Agreement between communication devices are called ________ |
| A. | Transmission medium |
| B. | Channel |
| C. | Protocol |
| D. | Modem |
| Answer» D. Modem | |
| 12. |
Noise is added to a signal ________ |
| A. | In the channel |
| B. | At receiving antenna |
| C. | At transmitting antenna |
| D. | During regeneration of information |
| Answer» B. At receiving antenna | |
| 13. |
Sum of a periodic and aperiodic signal always be an aperiodic signal. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
What is the role of channel in communication system? |
| A. | acts as a medium to send message signals from transmitter to receiver |
| B. | converts one form of signal to other |
| C. | allows mixing of signals |
| D. | helps to extract original signal from incoming signal |
| Answer» B. converts one form of signal to other | |
| 15. |
Sin wave is ________ |
| A. | Aperiodic Signal |
| B. | Periodic Signal |
| C. | Random Signal |
| D. | Deterministic Signal |
| Answer» C. Random Signal | |
| 16. |
Notch is a ________ |
| A. | High pass filter |
| B. | Low pass filter |
| C. | Band stop filter |
| D. | Band pass filter |
| Answer» D. Band pass filter | |