MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Wireless & Mobile Communications Questions & Answers Small-Scale Multipath Propagation knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Doppler shift is positive if mobile is moving away from direction of arrival of the wave. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
The Doppler shift for mobile moving with constant velocity, v is given by _______ |
| A. | (v*cos )/ |
| B. | v/ |
| C. | v*cos |
| D. | v* |
| Answer» B. v/ | |
| 3. |
What is a measure of the maximum frequency difference for which signals are strongly correlated in amplitude? |
| A. | Coherence bandwidth |
| B. | Narrow bandwidth |
| C. | Incoherent bandwidth |
| D. | Wide bandwidth |
| Answer» B. Narrow bandwidth | |
| 4. |
Signal will distort if transmitted signal bandwidth is greater than bandwidth of __________ |
| A. | Receiver |
| B. | Radio channel |
| C. | Multipath channel |
| D. | Transceiver |
| Answer» D. Transceiver | |
| 5. |
Which of the following factor does not influence small scale fading? |
| A. | Multipath propagation |
| B. | Power density of base station |
| C. | Speed of mobile |
| D. | Speed of surrounding objects |
| Answer» C. Speed of mobile | |
| 6. |
Doppler shift is directly proportional to __________ |
| A. | Velocity |
| B. | Height of antenna |
| C. | Power of receiving antenna |
| D. | Power of transmitter |
| Answer» B. Height of antenna | |
| 7. |
Apparent shift in frequency in multipath wave is caused due to relative motion between________ |
| A. | Base station and MSC |
| B. | Mobile and surrounding objects |
| C. | Mobile and MSC |
| D. | Mobile and base station |
| Answer» E. | |
| 8. |
Fading does not occur when mobile receiver is stationary. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
In urban areas, fading occurs due to height of mobile antenna ________ than height of surrounding structure. |
| A. | Same |
| B. | Smaller |
| C. | Greater |
| D. | Very larger |
| Answer» C. Greater | |
| 10. |
Which of the following is not an effect caused by multipath in radio channel? |
| A. | Rapid changes in signal strength |
| B. | Random frequency modulation |
| C. | Power of base station |
| D. | Time dispersion |
| Answer» D. Time dispersion | |
| 11. |
Fading is caused by interference. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Small scale fading describes the _________ fluctuations of the amplitude, phases of a signal. |
| A. | Rapid |
| B. | Slow |
| C. | Instantaneous |
| D. | Different |
| Answer» B. Slow | |