MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 22 Mcqs, each offering curated multiple-choice questions to sharpen your Wireless Mobile Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Path loss in free space model is defined as difference of ________ |
| A. | Effective transmitted power and gain |
| B. | Effective received power and distance between T-R |
| C. | Gain and received power |
| D. | Effective transmitter power and receiver power |
| Answer» E. | |
| 2. |
EIRP is abbreviated as __________ |
| A. | Effective isotropic radiated power |
| B. | Effective isotropic radio power |
| C. | Effective and immediate radiated power |
| D. | Effective and immediate ratio of power |
| Answer» B. Effective isotropic radio power | |
| 3. |
Which of the following antenna radiates power with unit gain uniformly in all directions? |
| A. | Directional antenna |
| B. | Dipole antenna |
| C. | Isotropic antenna |
| D. | Loop antenna |
| Answer» D. Loop antenna | |
| 4. |
Relation between wavelength and carrier frequency is _________ |
| A. | λ=c/f |
| B. | λ=c*f |
| C. | λ=f/c |
| D. | λ=1/f |
| Answer» B. λ=c*f | |
| 5. |
The free space model predicts that received signal decays as a function of _________ |
| A. | Gain of transmitter antenna |
| B. | T-R separation |
| C. | Power of transmitter antenna |
| D. | Effective aperture of the antenna |
| Answer» C. Power of transmitter antenna | |
| 6. |
Small scale propagation model is also known as _________ |
| A. | Fading model |
| B. | Micro scale propagation model |
| C. | Okumura model |
| D. | Hata model |
| Answer» B. Micro scale propagation model | |
| 7. |
The mechanism behind electromagnetic wave propagation cannot be attributed to ___________ |
| A. | Reflection |
| B. | Diffraction |
| C. | Scattering |
| D. | Sectoring |
| Answer» E. | |
| 8. |
RELATION_BETWEEN_WAVELENGTH_AND_CARRIER_FREQUENCY_IS______?$ |
| A. | λ=c/f |
| B. | λ=c*f |
| C. | λ=f/c |
| D. | λ=1/f |
| Answer» B. ‚âà√≠¬¨‚Ñ¢=c*f | |
| 9. |
EIRP is abbreviated as __________$ |
| A. | Effective isotropic radiated power |
| B. | Effective isotropic radio power |
| C. | Effective and immediate radiated power |
| D. | Effective and immediate ratio of power |
| Answer» B. Effective isotropic radio power | |
| 10. |
Which_of_the_following_antenna_radiates_power_with_unit_gain_uniformly_in_all_directions?$ |
| A. | Directional antenna |
| B. | Dipole antenna |
| C. | Isotropic antenna |
| D. | Loop antenna |
| Answer» D. Loop antenna | |
| 11. |
Which of the following is called an ideal antenna? |
| A. | Dipole antenna |
| B. | Directional antenna |
| C. | Isotropic antenna |
| D. | Loop antenna |
| Answer» D. Loop antenna | |
| 12. |
Fraunhofer distance is given by _____ |
| A. | 2D2/λ |
| B. | 2D/λ |
| C. | D/λ |
| D. | 2D/λ2 |
| Answer» B. 2D/‚âà√≠¬¨‚Ñ¢ | |
| 13. |
Far field region is also known as _________ |
| A. | Near field region |
| B. | Fraunhofer region |
| C. | Erlang region |
| D. | Fresnel region |
| Answer» C. Erlang region | |
| 14. |
Path_loss_in_free_space_model_is_defined_as_difference_of_________ |
| A. | Effective transmitted power and gain |
| B. | Effective received power and distance between T-R |
| C. | Gain and received power |
| D. | Effective transmitter power and receiver power |
| Answer» E. | |
| 15. |
Relation between gain and effective aperture is given by _____? |
| A. | G=(4πAe)/λ2 |
| B. | G=(4π λ2)/ Ae |
| C. | G=4πAe |
| D. | G=Ae/λ2 |
| Answer» B. G=(4‚âà√¨‚àö√ë ‚âà√≠¬¨‚Ñ¢2)/ Ae | |
| 16. |
The free space model predicts that received signal decays as a function of _____ |
| A. | Gain of transmitter antenna |
| B. | T-R separation |
| C. | Power of transmitter antenna |
| D. | Effective aperture of the antenna |
| Answer» C. Power of transmitter antenna | |
| 17. |
Which of the following do not undergo free space propagation? |
| A. | Satellite communication system |
| B. | Microwave line of sight radio links |
| C. | Wireless line of sight radio links |
| D. | Wired telephone systems |
| Answer» E. | |
| 18. |
Free space propagation model is to predict ______ |
| A. | Received signal strength |
| B. | Transmitted power |
| C. | Gain of transmitter |
| D. | Gain of receiver |
| Answer» B. Transmitted power | |
| 19. |
Small scale propagation model is also known as _______ |
| A. | Fading model |
| B. | Micro scale propagation model |
| C. | Okumura model |
| D. | Hata model |
| Answer» B. Micro scale propagation model | |
| 20. |
Propagation model that characterize rapid fluctuation is called _________ |
| A. | Hata model |
| B. | Fading model |
| C. | Large scale propagation model |
| D. | Okumura model |
| Answer» C. Large scale propagation model | |
| 21. |
The propagation model that estimates radio coverage of a transmitter is called ___________ |
| A. | Large scale propagation model |
| B. | Small scale propagation model |
| C. | Fading model |
| D. | Okumura model |
| Answer» B. Small scale propagation model | |
| 22. |
The mechanism behind electromagnetic wave propagation cannot be attributed to _____ |
| A. | Reflection |
| B. | Diffraction |
| C. | Scattering |
| D. | Sectoring |
| Answer» E. | |