AAAE ACE Operations Module 2 Updated Clinical
Skills Quizzes 2025/26 | A+ Verified Answers
What are the two major categories of pavement? - Flexible and rigid
What are some types of flexible pavement? - Grass, dirt, gravel and asphalt
Why are paved surfaces necessary at airports? - To support the critical loads imposed on
them; to produce a smooth, skid-resistant and safe-riding surface
Airport surfaces are distinguished by operational control and FAA design standards into what
two areas? - Movement and non-movement
What constitutes the movement area on an airport? - Runways and taxiways. At ATCT
controlled airports, the surfaces under ATC control. These areas must meet Part 139 design
restrictions.
What constitutes the non-movement area of an airport? - Taxiways and aprons not under
ATCT control
How are movement and non-movement areas determined at an airport with an ATCT? -
By Letter of Agreement (LOA) between the airport and the ATCT.
What is the benefit of using a rigid pavement such as Portland Cement Concrete? - It is
about half the lifetime cost of asphalt, with a service life of 30+ years versus 5-15 years for
asphalt. Concrete is more expensive up front though, so asphalt is common at low revenue
airports such as GA.
What are two major elements that make pavements deteriorate? - weathering and
aircraft loads
For bearing strengths of 12,500lbs or greater, what method is used to express the effect of an
individual aircraft on different pavements? - Comparing ACN to PCN (Aircraft
Classification Number-Pavement Classification Number)
What does the Pavement Classification Number (PCN) represent to the operator/pilot? -
PCN is the maximum pavement bearing strength for unrestricted aircraft operations.
What is the Load Classification Number (LCN) used to describe? - Pavement bearing
strengths less than 12,500lbs
, What are the five major categories of pavement distress? - cracking, joint seal damage,
disintegration, distortion, loss of skid resistance
Edges of abutting pavement or pavement and other areas must be no more than how many
inches in elevation difference? - 3 inches
What are the maximum dimensions of a hole that are allowed by Part 139? - Any hole
with a diameter greater than 5 inches and either 3 inches deep or a slope of greater than 45
degrees
How far are landing distances increased on wet pavement? - By 15 percent or more
What are the three types of hydroplaning? - Dynamic, viscous, and rubber reversion
What are three pavement elements that help to mitigate hydroplaning? - pavement
grooving, porous friction course, wire combing
At what point should rubber removal occur on a runway? - Based on a friction evaluation,
frequency of turbo-jet landings, or when 40% of the grooves are 1/8'' or less in depth or width
for a distance of 1,500ft
What is the normal depth and spacing of pavement grooving? - 1/4'' deep, 1/4" wide,
1.5"apart
What are four rubber removal techniques? - high-pressure water, chemical solvents,
high-velocity abrasive, mechanical grinding
When using a mechanical or electronic decelerometer to spot check pavement friction, how
many values are required to survey a runway and the check is conducted at what speed? -
3 values in each third of the runway (9 total); 20mph
How much of the runway should be checked when using continuous friction measuring
equipment (CFME) to evaluate runway friction? - full runway length; up to 40 mph
Below what Mu value is corrective action typically required? - Below 60 Mu
What are some advantages to using artificial turf for unpaved areas? - mitigate soil
erosion; minimize maintenance; control wildlife; enhance visual aesthetics
What are the variations in width and length of runway safety areas? - width - 120ft to
500ft from the runway centerline; length - 240ft to 1,000ft from the runway or stopway end
How does an engineered material arresting system (EMAS) help reduce the runway safety area
(RSA) requirement? - The system is designed to stop the critical aircraft exiting the
Skills Quizzes 2025/26 | A+ Verified Answers
What are the two major categories of pavement? - Flexible and rigid
What are some types of flexible pavement? - Grass, dirt, gravel and asphalt
Why are paved surfaces necessary at airports? - To support the critical loads imposed on
them; to produce a smooth, skid-resistant and safe-riding surface
Airport surfaces are distinguished by operational control and FAA design standards into what
two areas? - Movement and non-movement
What constitutes the movement area on an airport? - Runways and taxiways. At ATCT
controlled airports, the surfaces under ATC control. These areas must meet Part 139 design
restrictions.
What constitutes the non-movement area of an airport? - Taxiways and aprons not under
ATCT control
How are movement and non-movement areas determined at an airport with an ATCT? -
By Letter of Agreement (LOA) between the airport and the ATCT.
What is the benefit of using a rigid pavement such as Portland Cement Concrete? - It is
about half the lifetime cost of asphalt, with a service life of 30+ years versus 5-15 years for
asphalt. Concrete is more expensive up front though, so asphalt is common at low revenue
airports such as GA.
What are two major elements that make pavements deteriorate? - weathering and
aircraft loads
For bearing strengths of 12,500lbs or greater, what method is used to express the effect of an
individual aircraft on different pavements? - Comparing ACN to PCN (Aircraft
Classification Number-Pavement Classification Number)
What does the Pavement Classification Number (PCN) represent to the operator/pilot? -
PCN is the maximum pavement bearing strength for unrestricted aircraft operations.
What is the Load Classification Number (LCN) used to describe? - Pavement bearing
strengths less than 12,500lbs
, What are the five major categories of pavement distress? - cracking, joint seal damage,
disintegration, distortion, loss of skid resistance
Edges of abutting pavement or pavement and other areas must be no more than how many
inches in elevation difference? - 3 inches
What are the maximum dimensions of a hole that are allowed by Part 139? - Any hole
with a diameter greater than 5 inches and either 3 inches deep or a slope of greater than 45
degrees
How far are landing distances increased on wet pavement? - By 15 percent or more
What are the three types of hydroplaning? - Dynamic, viscous, and rubber reversion
What are three pavement elements that help to mitigate hydroplaning? - pavement
grooving, porous friction course, wire combing
At what point should rubber removal occur on a runway? - Based on a friction evaluation,
frequency of turbo-jet landings, or when 40% of the grooves are 1/8'' or less in depth or width
for a distance of 1,500ft
What is the normal depth and spacing of pavement grooving? - 1/4'' deep, 1/4" wide,
1.5"apart
What are four rubber removal techniques? - high-pressure water, chemical solvents,
high-velocity abrasive, mechanical grinding
When using a mechanical or electronic decelerometer to spot check pavement friction, how
many values are required to survey a runway and the check is conducted at what speed? -
3 values in each third of the runway (9 total); 20mph
How much of the runway should be checked when using continuous friction measuring
equipment (CFME) to evaluate runway friction? - full runway length; up to 40 mph
Below what Mu value is corrective action typically required? - Below 60 Mu
What are some advantages to using artificial turf for unpaved areas? - mitigate soil
erosion; minimize maintenance; control wildlife; enhance visual aesthetics
What are the variations in width and length of runway safety areas? - width - 120ft to
500ft from the runway centerline; length - 240ft to 1,000ft from the runway or stopway end
How does an engineered material arresting system (EMAS) help reduce the runway safety area
(RSA) requirement? - The system is designed to stop the critical aircraft exiting the
