MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Software Defined Radio knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Lower gain antenna reduces link margin and decreases the outage probability proportionally. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following are frequency independent antennas? |
| A. | Dielectric rod and Yagi |
| B. | Log-periodic and Equiangular Spiral |
| C. | Half-wave dipole and Half-wave slot |
| D. | Axial mode helix and Pyramidal horn |
| Answer» C. Half-wave dipole and Half-wave slot | |
| 3. |
What was the frequency range achieved by SPEAKeasy – 1? |
| A. | 20 – 300 MHz |
| B. | 5 – 300 MHz |
| C. | 30 – 3000 MHz |
| D. | 30 – 400 MHz |
| Answer» E. | |
| 4. |
SPEAK easy aimed to developed a full band antenna that operated over the range ______ |
| A. | 2 MHz to 2000 MHz |
| B. | 2 Hz to 2 MHz |
| C. | 20 Hz to 2 MHz |
| D. | 20 MHz to 2000 MHz |
| Answer» B. 2 Hz to 2 MHz | |
| 5. |
Which of the following is not a concern for antenna tradeoff? |
| A. | RF access |
| B. | Calibration |
| C. | Phase noise |
| D. | RF MEMS |
| Answer» E. | |
| 6. |
Human body interaction causes distortions in antenna pattern and health risk in human beings. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which of the following gives permissible levels of exposure to radiation in terms of whole body average SAR as per US FCC? |
| A. | 0.02 |
| B. | 0.04 |
| C. | 0.06 |
| D. | 0.08 |
| Answer» E. | |
| 8. |
Antenna separation effectively controls _________ |
| A. | directivity |
| B. | external noise |
| C. | self-generated interference |
| D. | external interference |
| Answer» D. external interference | |
| 9. |
Both TDOA and CDMA continuously compute ______ |
| A. | time difference of arrival |
| B. | time of arrival |
| C. | angle of arrival |
| D. | time delay of arrival |
| Answer» C. angle of arrival | |
| 10. |
Which method is used to estimate time-difference of arrival and angle of arrival? |
| A. | Optical interferometry |
| B. | Interferometric dynamic measurement |
| C. | Frequency scanning interferometry |
| D. | Phase interferometry |
| Answer» E. | |
| 11. |
The increase in the bandwidth of the antenna causes the thermal noise power to ______ |
| A. | decrease linearly |
| B. | increase linearly |
| C. | increase exponentially |
| D. | decrease exponentially |
| Answer» C. increase exponentially | |
| 12. |
What is the operating range of a pyramidal horn antenna? |
| A. | 1 – 6 GHz |
| B. | 1 – 5 GHz |
| C. | 300 MHz – 70 GHz |
| D. | 100 MHz – 35 GHz |
| Answer» D. 100 MHz – 35 GHz | |
| 13. |
What type of antenna is the Yagi antenna? |
| A. | Surface-wave |
| B. | Resonant |
| C. | Traveling wave |
| D. | Aperture |
| Answer» B. Resonant | |
| 14. |
How is bandwidth expressed in a Software Defined Radio? |
| A. | Ratio of highest RF to lowest RF |
| B. | Ratio of median RF to lowest RF |
| C. | Ratio of lowest RF to highest RF |
| D. | Ratio of lowest RF to median RF |
| Answer» D. Ratio of lowest RF to median RF | |
| 15. |
The parameters of the antenna considered for RF access are ______ |
| A. | RF band and bandwidth |
| B. | RF band and resonant frequency |
| C. | noise constraints and bandwidth |
| D. | directivity and RF band |
| Answer» B. RF band and resonant frequency | |