ATC ATC Radar and Technology 2

Question 1

What is the function of NEXRAD in ATC operations?

Accepted Answer

It is a network of Doppler weather radar systems used by controllers

Answer

It provides next-generation radar for aircraft tracking

Answer

It replaces primary surveillance radar at en route centers

Answer

It manages radio frequency assignments

Question 2

What does a squawk of 7700 indicate?

Accepted Answer

General emergency

Answer

Radio communication failure

Answer

Unlawful interference (hijacking)

Answer

VFR flight in uncontrolled airspace

Question 3

What transponder code is assigned to indicate a suspected hijacking?

Accepted Answer

7500

Answer

7600

Answer

7700

Answer

1200

Question 4

What is the purpose of the Conflict Alert (CA) function in ATC automation systems?

Accepted Answer

To warn controllers of predicted loss of separation between two aircraft

Answer

To alert controllers when an aircraft deviates from its filed flight plan

Answer

To notify supervisors of controller workload issues

Answer

To flag aircraft that have entered restricted airspace

Question 5

What does ATIS stand for and what is its primary purpose?

Accepted Answer

Automated Terminal Information Service; to broadcast continuous airport weather and NOTAMs

Answer

Air Traffic Identification System; to track aircraft identities

Answer

Automated Tracking and Integration Service; to link radar systems

Answer

Airport Traffic Information Signal; to sequence landing aircraft

Question 6

What is the difference between primary and secondary surveillance radar (SSR)?

Accepted Answer

Primary reflects radio energy off aircraft; secondary interrogates transponders

Answer

Primary uses transponder replies; secondary uses reflected radio energy

Answer

Primary is used at en route centers; secondary is only at airports

Answer

Primary displays weather; secondary displays aircraft