Sectional Charts & Chart Supplement

Correct

The answer is C: Class E begins at 700 feet AGL

A magenta vignette marks Class E transition airspace whose floor is 700 feet AGL; below that floor the airspace is Class G. Class E that starts at the surface is drawn with a dashed magenta line, not a vignette, and a 1,200-foot floor is shown by a blue vignette.

Source: AIM 3-2-6 · Chart Users' Guide p. 17 · ACS UA.II.A.K1d

Correct

The answer is B: 1,800 feet AGL

Class B figures are MSL, so the shelf floor is 3,000 feet MSL. Height above the ground is the MSL altitude minus the ground elevation: 3,000 ft MSL − 1,200 ft ground = 1,800 ft AGL. Reading the floor as 3,000 feet AGL ignores the chart's MSL reference, and adding the elevation (4,200) applies the conversion backwards.

Source: Chart Users' Guide p. 16 · FAA-G-8082-22 p. 5 · ACS UA.II.A.K1a

Correct

The answer is A: AGL heights are often omitted in very congested areas

Obstructions normally show the top's MSL elevation with the AGL height in parentheses below, but in extremely congested areas the FAA typically leaves out the AGL value to avoid confusion. The single figure is still the MSL top, so subtract the ground elevation to estimate the height; unverified obstacles are marked UC instead.

Source: Chart Users' Guide p. 11 · ACS UA.V.B.K6a

Correct

The answer is A: The tower operates part-time

A star after the CT frequency means the tower operates part-time; its hours are in the chart's tower frequency tabulation and the Chart Supplement. A rotating beacon is shown by a separate star at the airport symbol itself, and ATIS has its own labeled frequency.

Source: Chart Users' Guide p. 24 · AIM 3-2-5 · ACS UA.V.B.K6a

Correct

The answer is B: No segment of the route is above 1,500 feet AGL

MTRs with no segment above 1,500 feet AGL carry four-digit numbers, while routes with one or more segments above 1,500 feet AGL carry three or fewer digits. Four-digit routes are therefore the low ones, used by military aircraft that often fly faster than 250 knots, and they are military, not civil, routes.

Source: Chart Users' Guide p. 18 · FAA-G-8082-22 p. 10 · ACS UA.II.A.K3

Correct

The answer is A: The E: U.S. longitudes are west

The 48 conterminous states lie between 25° and 49° north latitude and between 67° and 125° west longitude, so a site in the lower 48 always reads N and W. An E longitude would put the site on the other side of the prime meridian.

Source: FAA-G-8082-22 p. 68 · FAA-G-8082-22 p. 69 · ACS UA.V.B.K6a

Correct

The answer is C: No; use the current edition instead

Pilots are urged to use only the latest issue of aeronautical charts, because superseded charts may contain obsolete or incomplete information, such as missing new towers or airspace changes. There is no six-month grace period, and a TAC is on the same 56-day cycle, so it cannot make an expired sectional current.

Source: AIM 5-1-1 · ACS UA.V.B.K6