MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Antennas knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Value of self complementary antenna when Zo=120 ? |
| A. | 120 |
| B. | 60 |
| C. | 240 |
| D. | 30 |
| Answer» C. 240 | |
| 2. |
Constant impedance of a self complementary antenna is Zo/4. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following does not belongs to frequency independent antenna? |
| A. | Spiral antenna |
| B. | Log periodic antenna |
| C. | Helical antenna |
| D. | Parabolic antenna |
| Answer» E. | |
| 4. |
Which of the following principle is mainly used in frequency independent antennas? |
| A. | Rumsey s principle |
| B. | Fabry perot |
| C. | Brewster law |
| D. | Archimedes principle |
| Answer» B. Fabry perot | |
| 5. |
Impedance of self-complementary antenna is ____ |
| A. | Z<sub>o</sub>/2 |
| B. | Z<sub>o</sub>/4 |
| C. | Z<sub>o</sub> |
| D. | 2Z<sub>o</sub> |
| Answer» B. Z<sub>o</sub>/4 | |
| 6. |
Which of the following property doesn t meet a true frequency independent antenna? |
| A. | Fixed physical size |
| B. | Constant impedance, pattern |
| C. | Operates over wide bandwidth |
| D. | Variable physical size |
| Answer» E. | |
| 7. |
The impedance and pattern are frequency independent if antenna shape is specified in terms of angle. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of the following is truefor a frequency independent antenna? |
| A. | Dimensions of antenna are specified in terms of angles |
| B. | Dimensions of antenna are specified in terms of varying wavelengths |
| C. | The antennas have variable impedance, pattern over operating wide band frequency |
| D. | It does not follow Rumsey s principle |
| Answer» B. Dimensions of antenna are specified in terms of varying wavelengths | |
| 9. |
Rumsey s principle is related to which type of antennas? |
| A. | Frequency independent antennas |
| B. | Frequency dependent antennas |
| C. | Reflector antennas |
| D. | Both Frequency independent and independent antennas |
| Answer» B. Frequency dependent antennas | |
| 10. |
Which of the following is Rumsey s principle? |
| A. | The impedance & pattern of antenna is frequency independent if antennasize is specified in terms of angle |
| B. | The impedance & pattern of antenna is frequency dependent if antennasize is specified in terms of angle |
| C. | The impedance & pattern of antenna is frequency dependent if antennasize is specified in terms of radiated power |
| D. | The impedance & pattern of antenna is frequency dependent if antennasize is variable |
| Answer» B. The impedance & pattern of antenna is frequency dependent if antennasize is specified in terms of angle | |