AAAE ACE Modules 1-4 exam 2023 with 100% correct answers

What are the two major categories of pavement? correct answersFlexible and rigid What are some types of flexible pavement? correct answersGrass, dirt, gravel and asphalt Why are paved surfaces necessary at airports? correct answersTo support the critical loads imposed on them; to produce a smooth, skid-resistant and safe-riding surface What is the benefit of using a rigid pavement such as Portland Cement Concrete? correct answersIt 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? correct answersweathering 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? correct answersComparing ACN to PCN (Aircraft Classification Number-Pavement Classification Number) ACN less than or equal to PCN