MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Avionics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
AESA can alter its transmitting and receiving patterns. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
AESA is more reliable than PESA. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which one of the following is common between AESA and PESA? |
| A. | Number of transmitting modules |
| B. | Number of frequencies that can be used |
| C. | Power required by each transmitter |
| D. | Electronic scanning capability |
| Answer» E. | |
| 4. |
WHICH_ONE_OF_THE_FOLLOWING_IS_COMMON_BETWEEN_AESA_AND_PESA??$ |
| A. | Number of transmitting modules |
| B. | Number of frequencies that can be used |
| C. | Power required by each transmitter |
| D. | Electronic scanning capability |
| Answer» E. | |
| 5. |
AESA can alter its transmitting and receiving patterns.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
AESA is more reliable than PESA.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
In an aircraft ESA the beam shape and direction is controlled by _______ |
| A. | Navigator |
| B. | Computer |
| C. | Ground controller |
| D. | Cannot be controlled |
| Answer» C. Ground controller | |
| 8. |
The possibility of one phased array radar to act as multiple radars is called as _______ |
| A. | ESA |
| B. | Multimode |
| C. | Digital |
| D. | interleaving radar modes |
| Answer» E. | |
| 9. |
Which of the following can track multiple targets with ease? |
| A. | AESA |
| B. | PESA |
| C. | ESA |
| D. | Conical radar antenna |
| Answer» B. PESA | |
| 10. |
What is the number of transmitting modules in a common AESA? |
| A. | 20 to 50 |
| B. | 1000 to 2000 |
| C. | 150 to 200 |
| D. | 1 |
| Answer» C. 150 to 200 | |
| 11. |
Which of the following is false with respect to PESA? |
| A. | PESA can only have one main beam and one transmit power source |
| B. | All elements combine to a single receiver. Each element steers the beam through phase shifters |
| C. | Because it uses a, multiple frequencies, it is less susceptible to enemy jammers |
| D. | PESA is more technically simple |
| Answer» D. PESA is more technically simple | |
| 12. |
Both AESA and PESA are ________ radars? |
| A. | Pulse |
| B. | Continuous wave |
| C. | Low frequency |
| D. | Analog |
| Answer» B. Continuous wave | |
| 13. |
Which of the following are present in an ESA? |
| A. | Gimbals |
| B. | Electronic motors |
| C. | Phase shifter |
| D. | Potentiometer |
| Answer» D. Potentiometer | |
| 14. |
The ESA is more _________ since it has no moving parts. |
| A. | Prone to failure |
| B. | Powerful |
| C. | Reliable |
| D. | Accurate |
| Answer» D. Accurate | |
| 15. |
The ESA radar beam can be repositioned in a few _______ |
| A. | Microseconds |
| B. | Nanoseconds |
| C. | Milliseconds |
| D. | Seconds |
| Answer» B. Nanoseconds | |
| 16. |
Which of the following determines the direction of the antenna beam in ESA? |
| A. | Physical direction of antenna |
| B. | Direction of aircraft nose |
| C. | Slope of the phase taper |
| D. | Mechanical gimbal |
| Answer» D. Mechanical gimbal | |
| 17. |
How is the radar beam moved in the ESA? |
| A. | Phase shift |
| B. | Mechanical gimbal |
| C. | Mechanical servos |
| D. | Hydraulics |
| Answer» B. Mechanical gimbal | |
| 18. |
What is the fundamental limitation of the radar that is overcome by Electronic scanned array radars? |
| A. | More clarity |
| B. | Situation awareness |
| C. | Better range |
| D. | Less noise |
| Answer» C. Better range | |