Airspace & ChartsCâu 44 / 100
Near a busy airport a sectional chart shows a solid magenta circle marking the outer shelf of Class C airspace, with a small boxed notation reading 45 above a line and 12 below it. How should a remote pilot interpret those two numbers?
a.The ceiling is 4,500 ft AGL and the floor is 1,200 ft AGL above the reporting point
b.The ceiling is 4,500 ft MSL and the floor of that airspace segment is 1,200 ft MSL
c.The ceiling is 45,000 ft MSL and the floor of that airspace segment is 12,000 ft MSL
d.The ceiling is 4,500 ft MSL and the airspace segment extends down to the surface
Giải thích
Numbers in an airspace box on a sectional are expressed in hundreds of feet MSL, so 45 over 12 means a ceiling of 4,500 ft MSL over a floor of 1,200 ft MSL for that outer shelf. The values are MSL, not AGL, so a pilot must add field or terrain elevation reasoning when comparing them to altitude above the ground. A floor reaching the ground would be printed as SFC rather than a number, and 45,000 ft would appear as 450.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A remote pilot applicant is reviewing the vertical structure of the National Airspace System. Which statement correctly describes the vertical limits of Class A airspace?
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- A remote pilot checks the UAS Facility Map for a job site inside Class C airspace and finds that the grid square covering the site is marked 0, while the neighboring squares show 100, 200, and 400. What does the 0 mean for this operation?
- A sectional chart shows a towered airport ringed by a segmented blue line, with a boxed bracketed notation printed as 25 next to the ring. What does that notation tell the remote pilot?
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- While comparing two airports on the same sectional chart, a remote pilot notices that one airport symbol is printed in blue and the other in magenta. What does the color difference indicate?
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