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Avionics Practice Test: Surveillance Systems, Mapping and Multimode Radars
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Surveillance Systems, Mapping and Multimode Radars topics include: Electronic scanned array radar, primary and secondary radar, modes s system, traffic alert, collision avoidance system and weather radar. Multi-mode radars are radars that can operate in multiple modes at the same time. They are typically used for military applications such as search and track operations or air defense missions. The Mode S system is a secondary surveillance and communication system that supports Air Traffic Control (ATC). It is a Secondary Surveillance Radar process that allows selective interrogation of... Show more
Avionics Practice Test: Surveillance Systems, Mapping and Multimode Radars
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25 Questions

1. Which of the following is false with respect to primary radar?
2. The transmitted and received power is the same in a primary radar.
3. What is the reflected pulse in primary radar called?
4. Both AESA and PESA are ________ radars?
5. Which mode is used for selective calling?
6. What does the threshold number for Tau depend on?
7. Which of the following are present in an ESA?
8. What is the fundamental limitation of the radar that is overcome by Electronic scanned array radars?
9. What is the frequency of operation of weather radar?
10. Which of the following cannot be measured in primary radar?
11. What is the number of transmitting modules in a common AESA?
12. How does mode S system differ from mode A and C?
13. The ESA radar beam can be repositioned in a few _______
14. The time between the collision of two aircraft on a collision course is called _____
15. Whisper shout is used to avoid garble in TCAS.
16. In an aircraft ESA the beam shape and direction is controlled by _______
17. What type of radar is the primary radar?
18. What is the minimum safe approach distance for a radar system operating in excess of 5kWhr?
19. How is the radar beam moved in the ESA?
20. Which of the following determines the direction of the antenna beam in ESA?
21. What is the gain required by a weather radar antenna?
22. What are the numbers of non-selective interrogations in mode S system?
23. What is one of the main objectives of a military aircraft design?
24. How does mode S identify each aircraft?
25. What is the range of typical weather radar?