4A0 CDC - URE Volume 1 Part 2 Questions and Answers 100% Pass

4A0 CDC - URE Volume 1 Part 2 Questions and Answers 100% Pass What is the primary function of the radar system in air traffic control? To detect and track the position of aircraft in the airspace. How does a weather radar system assist in aviation? It provides real-time information about weather patterns and helps avoid hazardous weather conditions. What is the role of the radar operator in maintaining airspace safety? The operator monitors radar screens to identify potential collisions and ensures safe distances between aircraft. What is the function of an aircraft transponder in air traffic control? The transponder sends information about the aircraft's identity, position, and altitude to air traffic controllers. How does a radar altimeter work in an aircraft? 2 It measures the aircraft’s height above the ground by bouncing radio waves off the terrain below. What is the primary difference between primary radar and secondary radar? Primary radar detects objects by bouncing radio waves off them, while secondary radar relies on a signal sent by a transponder from the aircraft. What does the term "range" refer to in radar systems? The distance from the radar to the object being detected. What is the significance of "sweep time" in radar systems? Sweep time refers to the amount of time it takes for the radar beam to complete a full rotation. What is the main purpose of an IFF (Identification Friend or Foe) system? To identify and differentiate between friendly and potentially hostile aircraft. Why is the use of radar essential for air traffic controllers during low visibility conditions? 3 Radar allows controllers to track aircraft positions accurately, even when visibility is poor due to weather or night-time conditions. What is the principle of operation behind weather radar? Weather radar sends out radio waves that bounce back after hitting precipitation or other atmospheric objects, helping to detect weather conditions. How does a radar system help in collision avoidance between aircraft? Radar systems provide real-time positional data, enabling air traffic controllers to instruct pilots on course changes to maintain safe distances. What is the function of a radar beacon in air navigation? A radar beacon sends out signals that are used by radar systems to determine the location of an aircraft. What does "radar clutter" refer to? Radar clutter is unwanted reflections from objects such as terrain or weather conditions that may interfere with the detection of aircraft.