Radar

What does the acronym RADAR stand for?

• • Radio Direction and Ranging

• Radio Detection and Ranging

• Remote Detection and Response

• Rapid Altitude and Radar

What is the main purpose of primary radar in aviation?

• To send aircraft identification codes

• To detect objects using reflected radio waves

• To display weather data

• To track satellites

What additional feature does secondary surveillance radar (SSR) provide that primary radar does not?

• Range measurement

• Aircraft transponder data (e.g., altitude and identity)

• Weather mapping

• Ground movement detection

What type of radar is used to detect and map weather conditions around aircraft?

• Primary radar

• Ground control radar

• Weather radar

• Doppler radar

How does Doppler radar enhance aviation safety?

• It displays cockpit alerts

• It detects the aircraft's speed and movement of weather systems

• It monitors fuel flow

• • It measures engine temperature

What is the main limitation of primary radar?

• It only works during daytime

• It cannot detect aircraft altitude or identity

• It interferes with communication systems

• It requires a GPS signal to function

Which system is used to help prevent mid-air collisions between aircraft?

• ASDE-X

• Ground surveillance radar

• Traffic Collision Avoidance System (TCAS)

• Weather radar

What type of radar is often used at airports to monitor surface traffic (aircraft and vehicles)?

• Primary radar

• Secondary radar

• Surface Movement Radar (SMR)

• Doppler radar

What is a key benefit of Active Electronically Scanned Array (AESA) radar in aviation?

• Requires no transponder to function

• Provides electronic beam steering without moving parts

• Only works during clear weather

• Has fewer maintenance requirements but limited range

In which phase of flight is radar communication most critical for avoiding traffic and terrain?

• • Cruising over the ocean

• Approach and landing

• Boarding at the gate

• • In-flight meal service