AAAE ACE OPERATIONS MODULE 2 EXAM 2026
LATEST UPDATE QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED A+
When are runway centerline lights required? - ANS-CAT II and III; CAT I landing below 2,400ft
RVR; takeoffs below 1,600ft RVR; recommended for CAT I when runway width is >170ft or
approach speeds are >140kts
What color are runway centerline lights? - ANS-white until 3,000ft remaining and then
white/red alternating until 1,000ft remaining, then red to the end of runway
What spacing requirements exist for centerline runway lights? - ANS-uniformly centered within
2.5ft of the runway centerline at 50ft intervals
How are touchdown zone lights arranged? - ANS-two rows of light bars with 3 unidirectional
lights each, facing the threshold; start 100 feet from the threshold and continue to 3,000ft
down the runway or one-half the runway length for runways <6,000ft
What color are taxiway centerline lights? - ANS-green; when used as a runway lead-in or lead-
off line, green/yellow alternating; for lead-off lights, the last yellow is one light position
beyond the runway or ILS hold line
What color are runway guard lights? - ANS-yellow; can be alternately illuminated in-pavement
or two alternately illuminated elevated lights (wigwags)
What are stop bars and when are they needed? - ANS-a row of in-pavement red lights and a
single red light on either side of the taxiway; used to control runway access during low
visibility conditions (<600ft RVR)
, When are clearance bars used? - ANS-a line of three in-pavement lights indicating a hold point
for low visibility operations or to indicate an upcoming taxiway intersection
What is indicated by a row of 6 or 7 in-pavement pulsating white lights on the runway? - ANS-a
hold position for land and hold short operations (LAHSO)
How is an airport beacon configured? - ANS-two lights 180 degrees apart; white/green for civil
airports; green flashes 24-30 times per minute; mounted higher than the surrounding
obstacles
Where are wind cones located? - ANS-at least one on the airport, lighted if night carrier
operations occur; additional cones placed so that every takeoff and landing runway has a
cone visible to pilots
When is an obstruction light required? - ANS-at night or during limited visibility when the
obstruction is deemed to present a potential hazard to air traffic
How many sequenced flashing lights (rabbit lights) are there? - ANS-five lights that extend past
the 1,000ft mark of the approach lights
What type of approach lighting system is required for ILS CAT II and III approaches? - ANS-ALSF-
1 or 2 (approach lighting system with sequenced flashers)
What approach lighting system consists of five runway alignment white strobes beginning 300ft
from the threshold and 300ft apart with two additional white strobes used to indicate the
runway threshold? - ANS-ODALS (omni-directional approach lighting system)
LATEST UPDATE QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED A+
When are runway centerline lights required? - ANS-CAT II and III; CAT I landing below 2,400ft
RVR; takeoffs below 1,600ft RVR; recommended for CAT I when runway width is >170ft or
approach speeds are >140kts
What color are runway centerline lights? - ANS-white until 3,000ft remaining and then
white/red alternating until 1,000ft remaining, then red to the end of runway
What spacing requirements exist for centerline runway lights? - ANS-uniformly centered within
2.5ft of the runway centerline at 50ft intervals
How are touchdown zone lights arranged? - ANS-two rows of light bars with 3 unidirectional
lights each, facing the threshold; start 100 feet from the threshold and continue to 3,000ft
down the runway or one-half the runway length for runways <6,000ft
What color are taxiway centerline lights? - ANS-green; when used as a runway lead-in or lead-
off line, green/yellow alternating; for lead-off lights, the last yellow is one light position
beyond the runway or ILS hold line
What color are runway guard lights? - ANS-yellow; can be alternately illuminated in-pavement
or two alternately illuminated elevated lights (wigwags)
What are stop bars and when are they needed? - ANS-a row of in-pavement red lights and a
single red light on either side of the taxiway; used to control runway access during low
visibility conditions (<600ft RVR)
, When are clearance bars used? - ANS-a line of three in-pavement lights indicating a hold point
for low visibility operations or to indicate an upcoming taxiway intersection
What is indicated by a row of 6 or 7 in-pavement pulsating white lights on the runway? - ANS-a
hold position for land and hold short operations (LAHSO)
How is an airport beacon configured? - ANS-two lights 180 degrees apart; white/green for civil
airports; green flashes 24-30 times per minute; mounted higher than the surrounding
obstacles
Where are wind cones located? - ANS-at least one on the airport, lighted if night carrier
operations occur; additional cones placed so that every takeoff and landing runway has a
cone visible to pilots
When is an obstruction light required? - ANS-at night or during limited visibility when the
obstruction is deemed to present a potential hazard to air traffic
How many sequenced flashing lights (rabbit lights) are there? - ANS-five lights that extend past
the 1,000ft mark of the approach lights
What type of approach lighting system is required for ILS CAT II and III approaches? - ANS-ALSF-
1 or 2 (approach lighting system with sequenced flashers)
What approach lighting system consists of five runway alignment white strobes beginning 300ft
from the threshold and 300ft apart with two additional white strobes used to indicate the
runway threshold? - ANS-ODALS (omni-directional approach lighting system)
