MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Microwave Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A radio receiver operating at microwave frequencies must have very high selectivity. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
One of the most important requirements of a radio receiver is high gain. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Link margin that is used to account for fading effects is called fade margin. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
The power received by a receiving antenna given that Pt is the transmitted power is: |
| A. | GrGtλ2pt/ (4πR)2 |
| B. | Gtλ2pt/ (4πR)2 |
| C. | Grλ2pt/ (4πR)2 |
| D. | None of the mentioned |
| Answer» B. Gtλ2pt/ (4πR)2 | |
| 5. |
ONE_OF_THE_MOST_IMPORTANT_REQUIREMENTS_OF_A_RADIO_RECEIVER_IS_HIGH_GAIN.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
A_radio_receiver_operating_at_microwave_frequencies_must_have_very_high_selectivity.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Link margin that is used to account for fading effects is called fade margin? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
The amount of power by which the received power must be greater than the threshold level required to maintain a minimum quality of service is called _______ |
| A. | Line loss |
| B. | Link budget |
| C. | Link margin |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 9. |
If the distance between a transmitting station and receiving station is 1 Km and if the antennas are operating at a wavelength of 5 cm, then the path loss is: |
| A. | 108 dB |
| B. | 12 dB |
| C. | 45 dB |
| D. | 48 dB |
| Answer» B. 12 dB | |
| 10. |
The power received by a receiving antenna given that Pt is the transmitted power is: |
| A. | G<sub>r</sub>G<sub>t</sub>λ<sup>2</sup>p<sub>t</sub>/ (4πR)<sup>2</sup> |
| B. | G<sub>t</sub>λ<sup>2</sup>p<sub>t</sub>/ (4πR)<sup>2</sup> |
| C. | G<sub>r</sub>λ<sup>2</sup>p<sub>t</sub>/ (4πR)<sup>2</sup> |
| D. | None of the mentioned |
| Answer» B. G<sub>t</sub>‚âà√≠¬¨‚Ñ¢<sup>2</sup>p<sub>t</sub>/ (4‚âà√¨‚àö√ëR)<sup>2</sup> | |
| 11. |
The power density radiated by an isotropic antenna is given by the relation: |
| A. | P<sub>t</sub>/4πR<sup>2</sup> |
| B. | P<sub>t</sub>/4R<sup>2</sup> |
| C. | P<sub>t</sub>/R<sup>2</sup> |
| D. | None of the mentioned |
| Answer» B. P<sub>t</sub>/4R<sup>2</sup> | |
| 12. |
In this method of wireless communication, communication happens only in one direction: |
| A. | Simplex |
| B. | Duplex |
| C. | Half duplex |
| D. | None of the mentioned |
| Answer» B. Duplex | |
| 13. |
Point to point communication systems use low gain antennas for communication. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
Most of the wireless systems today operate at a frequency of about: |
| A. | 800 MHz |
| B. | 100 MHz |
| C. | 80 MHz |
| D. | None of the mentioned |
| Answer» B. 100 MHz | |