Question 1
Domain 3: FAA Part 107 AirspaceWhat is the vertical extent of Class C airspace?
Correct answer: C
Explanation
Class C airspace has a "core area" that extends from the surface to 4,000 feet above airport elevation, with an outer shelf surrounding it. This vertical structure is what distinguishes Class C from other controlled airspace and matches the answer given.
Why each option is right or wrong
A. From the surface to 4,000 feet AGL
B. From the surface to 10,000 feet MSL
C. Core area from surface to 4,000 feet AGL with outer shelf
Under 14 CFR § 71.71, Class C airspace is built around a primary airport area that extends from the surface up to 4,000 feet above the airport elevation, with a surrounding shelf area above that core. The question asks for the vertical extent, and the correct choice matches the regulatory ceiling for the inner portion of Class C rather than a generic controlled-airspace description.
D. From 700 feet AGL to 10,000 feet MSL