FEAST Dynamic Radar Conflict Management 2

Question 1

Two aircraft are converging at FL290 with a projected closest point of approach (CPA) of 3 NM lateral and 0 ft vertical in 4 minutes.
The ICAO minimum radar separation standard in European airspace is 5 NM.
The controller should:

Accepted Answer

Issue an immediate heading change or level change to one or both aircraft to restore 5 NM separation before the CPA

Answer

Wait until the aircraft reach 5 NM to see if they maintain own separation

Answer

Instruct both aircraft to increase speed to pass each other more quickly

Answer

Accept 3 NM if TCAS resolution advisory has not been issued yet

Question 2

Aircraft Alpha is at FL350 heading 090, speed 480 kts. Aircraft Bravo is at FL350 heading 270, speed 460 kts. They are on reciprocal headings 30 NM apart. The closure rate is approximately:

Accepted Answer

940 kts — because reciprocal heading aircraft add their speeds together

Answer

480 kts — only the faster aircraft's speed counts for closure

Answer

20 kts — only the speed difference between the two aircraft matters

Answer

460 kts — both aircraft are moving so only relative speed above the slower one matters

Question 3

An STCA alert activates for two aircraft at FL280 and FL290 converging from the left and right. The controller's first action should be to:

Accepted Answer

Assess the geometry on the radar display to determine which resolution (heading or level) will be most effective

Answer

Immediately issue an instruction to one aircraft before fully assessing the situation

Answer

Acknowledge the STCA and wait to see if the aircraft diverge on their own

Answer

Transfer both aircraft to the next sector to avoid responsibility for the conflict

Question 4

A level-bust occurs when an aircraft climbs 400 ft above its cleared FL310 to FL314. In the same vicinity, another aircraft is cleared to FL320. The vertical separation is now:

Accepted Answer

600 ft — insufficient; ICAO minimum is 1,000 ft vertical separation

Answer

1,400 ft — sufficient because FL320 is 1,000 ft above the original FL310

Answer

400 ft — only the deviation amount matters for separation calculation

Answer

900 ft — halfway between the deviation and the cleared level difference

Question 5

Two aircraft are in conflict and the controller issues a heading change to Aircraft 1. Aircraft 1 does not respond. The controller should:

Accepted Answer

Immediately re-issue the instruction, confirm read-back, and if no response, consider instructing Aircraft 2 to resolve the conflict

Answer

Wait for Aircraft 2 to take TCAS avoiding action before issuing further instructions

Answer

Transfer the conflict responsibility to the military controller

Answer

Issue a MAYDAY for both aircraft and hand off to the emergency frequency

Question 6

A controller detects a conflict between two aircraft where a heading change for Aircraft A would resolve the conflict but would take it into a third aircraft's path. The most appropriate action is to:

Accepted Answer

Resolve the original conflict using a level change or a coordinated combination of instructions to all three aircraft

Answer

Issue the heading change to Aircraft A and deal with the resulting new conflict when it develops

Answer

Declare an emergency and hand all three aircraft to the supervisor

Answer

Instruct Aircraft B to change heading to remove it from Aircraft A's path first