CPC Navigation Systems & Radar Operations

Question 1

What is the primary function of radar in air traffic control?

Accepted Answer

Track aircraft positions

Answer

The primary function of radar in air traffic control is to track aircraft positions. Radar systems emit radio waves that bounce off aircraft, allowing controllers to determine their location, altitude, and speed. This real-time positional data is crucial for maintaining safe separation between aircraft and guiding them along their intended flight paths.

Question 2

Which type of radar is commonly used for terminal area control?

Accepted Answer

Airport Surveillance Radar (ASR)

Answer

The Airport Surveillance Radar (ASR) is commonly used for terminal area control. This type of radar provides controllers with a detailed view of aircraft within a 50-60 nautical mile radius of an airport, typically up to 25,000 feet. ASR helps controllers manage arriving and departing traffic, vector aircraft for approaches, and maintain separation in the busy airspace around an airport.

Question 3

What does ADS-B stand for?

Accepted Answer

Automatic Dependent Surveillance–Broadcast

Answer

ADS-B stands for Automatic Dependent Surveillance–Broadcast. It is a surveillance technology in which an aircraft determines its position via satellite navigation and periodically broadcasts it, enabling it to be tracked. This system provides more accurate and frequent position updates than traditional radar, enhancing safety and efficiency in air traffic management.

Question 4

Which system provides lateral and vertical guidance to aircraft?

Accepted Answer

Instrument Landing System (ILS)

Answer

The Instrument Landing System (ILS) provides precise lateral and vertical guidance to aircraft during approach and landing, especially in low visibility conditions. It consists of a localizer for horizontal guidance to the runway centerline and a glideslope for vertical guidance to maintain the correct descent path. ILS is a critical navigation aid for instrument approaches.

Question 5

Which navigation system uses satellite signals to determine aircraft position?

Accepted Answer

GPS

Answer

The Global Positioning System (GPS) is a satellite-based navigation system that uses signals from orbiting satellites to determine an aircraft's precise position, velocity, and time anywhere on Earth. GPS has revolutionized aviation navigation, providing highly accurate and reliable positional data for all phases of flight. It is a fundamental component of modern air traffic management and aircraft navigation systems.

(CPC) Certified Professional Controller Practice Test

(CPC) Certified Professional Controller Practice Test

CPC Navigation Systems & Radar Operations