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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. A power of 5 kW to 50 kW is required even when using narrow beams.
2. The undesirable responses from buildings and clouds for the radar pulse are called as __________
3. Which of the following determines the direction of the antenna beam in ESA?
4. What are the numbers of non-selective interrogations in mode S system?
5. What is one of the main objectives of a military aircraft design?
6. What does the threshold number for Tau depend on?
7. What is the time separation for P1 and P3 for mode A secondary radar?
8. What is the fundamental limitation of the radar that is overcome by Electronic scanned array radars?
9. What is the range of typical weather radar?
10. Both ATCRBS and mode S have the same range.
11. How does mode S system differ from mode A and C?
12. The strength of a secondary radar varies inversely with distance to the ______ power.
13. What is the minimum safe approach distance for a radar system operating in excess of 5kWhr?
14. How does mode S identify each aircraft?
15. The ESA is more _________ since it has no moving parts.
16. Whisper shout is used to avoid garble in TCAS.
17. Which one of the following is common between AESA and PESA?
18. Which of the following can track multiple targets with ease?
19. Which of the following are present in an ESA?
20. Which of the following is false with respect to secondary radar?
21. Which of the following is false with respect to primary radar?
22. AESA is more reliable than PESA.
23. A mode S transponder is silent when it is not interrogated.
24. In an aircraft ESA the beam shape and direction is controlled by _______
25. What is the reflected pulse in primary radar called?