Part 107 Sectional Chart Questions

Learn the clue, then try the question

A new chart excerpt can test a familiar rule. These free lessons show how to read the altitude reference, boundary or frequency before choosing an answer.

• 01 / ALTITUDE

  AGL or MSL?

  Read airport elevations and obstacle heights, then work through a local-ground example.

  Read the chart lesson →
• 02 / AIRSPACE

  Surface, 700 or 1,200 feet?

  Compare Class E chart symbols and identify the floor at your point.

  Compare the symbols →
• 03 / FREQUENCY

  Tower closed: find the CTAF

  Use the circled C instead of guessing from a nearby UNICOM or weather frequency.

  Read the frequency lesson →

Preparing for the new images? Read what changes on October 26, 2026. Our exercises are original study questions using FAA charts; they do not reproduce confidential exam questions.

Free sectional chart questions

1. 

   (Refer to the figure, area 1.) What is the elevation of Dallas-Fort Worth Intl (DFW)?

   1. 606 feet AGL
   2. 13,400 feet MSL
   3. 606 feet MSL
   Show answer and explanation

   Answer: C. 606 feet MSL

   606 feet MSL. In the airport data block, the line that starts with 606 gives the field elevation in feet above mean sea level, followed by the lighting code and the length of the longest runway. The 134 on that line is the length of the longest runway in hundreds of feet (about 13,400 feet), not an elevation. 606 feet AGL makes no sense for a field elevation: the airport is the ground, and the chart gives its height above mean sea level.

   Source

   • FAA NASR 28-day subscription effective 2026-09-03, APT_BASE.csv 606.4
   • Chart Users' Guide (complete), p. 15, Airports The elevation of an airport is the highest point on the usable portion of the landing areas.
   • Chart Users' Guide (complete), p. 15, Airports Length of longest runway in hundreds of feet; usable length may be less

2. 

   (Refer to the figure, area 1.) What class of airspace is at the surface over Abilene Rgnl (ABI)? Assume any control tower in the figure is operating.

   1. Class C
   2. Class D
   3. Class B
   Show answer and explanation

   Answer: A. Class C

   Class C. Abilene Rgnl sits inside solid magenta circles, the chart symbol for Class C airspace. The inner circle is labeled 58/SFC: the top number is the ceiling in hundreds of feet MSL (5,800 feet MSL) and SFC means this part begins at the surface. Class B would be drawn with solid blue lines, and Class D with a dashed blue line. Flying a small UA here requires prior ATC authorization under 14 CFR 107.41.

   Source

   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) CLASS_C
   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) SFC
   • Chart Users' Guide (complete), p. 16, Class C Airspace The MSL ceiling and floor altitudes of each sector are shown in solid magenta figures with the last two zeros eliminated.

3. 

   (Refer to the figure, area 1.) What is the ceiling of the Class D airspace at Lawton-Fort Sill Rgnl (LAW)?

   1. 3,700 feet AGL
   2. 2,600 feet MSL
   3. 3,700 feet MSL
   Show answer and explanation

   Answer: C. 3,700 feet MSL

   3,700 feet MSL. The Class D airspace is outlined by a dashed blue line, and the number in the dashed blue box, 37, is its ceiling in hundreds of feet MSL. Altitudes of charted airspace are MSL, so reading it as 3,700 feet AGL is wrong: that would put the top about 1,110 feet higher, the field elevation. 2,600 feet MSL is the ceiling minus the field elevation, which is roughly the height of the airspace above the airport, not an MSL altitude.

   Source

   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) 3700
   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) TI
   • Chart Users' Guide (complete), p. 27, Class D Airspace Class D Airspace Altitude in hundreds of feet MSL

4. 

   (Refer to the figure, area 1.) What class of airspace is at the surface over Ardmore Muni (ADM)? Assume any control tower in the figure is operating.

   1. Class C
   2. Class G
   3. Class D
   Show answer and explanation

   Answer: C. Class D

   Class D. Ardmore Muni is printed in blue, so it has a control tower, and it sits inside a dashed blue line, the chart symbol for Class D airspace, which starts at the surface. The number in the dashed box gives the Class D ceiling in hundreds of feet MSL. Class C would be drawn with solid magenta circles, not a dashed blue line. Class G is wrong while the tower is open because the dashed blue boundary makes the airspace controlled down to the ground. Before flying here a remote pilot needs ATC authorization under 14 CFR 107.41, normally through LAANC or FAA DroneZone.

   Source

   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) CLASS_D
   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) SFC
   • Chart Users' Guide (complete), p. 16, Class D Airspace Class D Airspace is identified with a blue dashed line.

5. 

   (Refer to the figure, area 1.) A remote pilot plans an early-morning flight near Infinity One Oklahoma Spaceport (CSM) before its control tower opens. Which frequency should be monitored as the CTAF?

   1. 119.6 MHz
   2. 118.45 MHz
   3. 122.95 MHz
   Show answer and explanation

   Answer: A. 119.6 MHz

   119.6 MHz. The airport is printed in blue, so it has a control tower, and 'CT - 119.6' gives the tower's primary frequency. The star after it means the tower operates part-time, and the circled C means the same frequency is the Common Traffic Advisory Frequency when the tower is closed. 118.45 is the ASOS automated weather frequency; 122.95 is UNICOM, used for services such as fuel requests, so neither is the CTAF.

   Source

   • FAA NASR 28-day subscription effective 2026-09-03, FRQ.csv 119.6
   • Chart Users' Guide (complete), p. 15, Airports Star indicates operation part-time.
   • Chart Users' Guide (complete), p. 15, Airports Follows the Common Traffic Advisory Frequency (CTAF)

6. 

   (Refer to the figure, area 2.) What is the floor of the Class E airspace at area 2?

   1. 700 feet AGL
   2. 1,200 feet AGL
   3. The surface
   Show answer and explanation

   Answer: A. 700 feet AGL

   700 feet AGL. Area 2 lies just inside the fuzzy magenta band (vignette) that rings Mineral Wells, on the side toward which the band fades. A magenta vignette marks a 700-foot floor: its sharp outer edge is the limit, and on the faded side Class E airspace begins at 700 feet AGL, with Class G below. Area 2 is outside the dashed magenta Class E surface-area line around the airport, so the floor is not the surface, and 1,200 feet AGL applies only beyond the vignette's sharp outer edge. A small UA flying below 400 feet AGL there stays in Class G airspace.

   Source

   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) 700
   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) SFC
   • Chart Users' Guide (complete), p. 17, Class E Airspace Controlled airspace floors of 700' above the ground are defined by a magenta vignette

7. 

   (Refer to the figure, area 1.) What is the ceiling of the Class B airspace above area 1?

   1. 11,000 feet MSL
   2. 11,000 feet AGL
   3. 5,000 feet MSL
   Show answer and explanation

   Answer: A. 11,000 feet MSL

   11,000 feet MSL. Area 1 lies in the Class B sector labeled 110 over 50. In these solid blue labels the top number is the ceiling and the bottom number the floor, both in hundreds of feet MSL with the last two zeros left off, so this sector spans 5,000 to 11,000 feet MSL. The ceiling is MSL, not AGL, and 5,000 feet MSL is the floor of this sector, where the Class B airspace begins.

   Source

   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) 11000
   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) MSL
   • Chart Users' Guide (complete), p. 16, Class B Airspace The MSL ceiling and floor altitudes of each sector are shown in solid blue figures with the last two zeros omitted.

8. 

   (Refer to the figure, area 1.) A remote pilot plans an early-morning flight near Portland-Troutdale (TTD) before its control tower opens. Which frequency should be monitored as the CTAF?

   1. 122.95 MHz
   2. 120.9 MHz
   3. 135.625 MHz
   Show answer and explanation

   Answer: B. 120.9 MHz

   120.9 MHz. The airport is printed in blue, so it has a control tower, and 'CT - 120.9' gives the tower's primary frequency. The star after it means the tower operates part-time, and the circled C means the same frequency is the Common Traffic Advisory Frequency when the tower is closed. 135.625 is the ATIS frequency (recorded airport information); 122.95 is UNICOM, used for services such as fuel requests, so neither is the CTAF.

   Source

   • FAA NASR 28-day subscription effective 2026-09-03, FRQ.csv 120.9
   • Chart Users' Guide (complete), p. 15, Airports Star indicates operation part-time.
   • Chart Users' Guide (complete), p. 15, Airports Follows the Common Traffic Advisory Frequency (CTAF)

9. 

   (Refer to the figure, area 1.) What is the ceiling of the Class D airspace at Yakima Air Trml/McAllister Fld (YKM)?

   1. 3,600 feet MSL
   2. 2,500 feet MSL
   3. 3,600 feet AGL
   Show answer and explanation

   Answer: A. 3,600 feet MSL

   3,600 feet MSL. The Class D airspace is outlined by a dashed blue line, and the number in the dashed blue box, 36, is its ceiling in hundreds of feet MSL. Altitudes of charted airspace are MSL, so reading it as 3,600 feet AGL is wrong: that would put the top about 1,099 feet higher, the field elevation. 2,500 feet MSL is the ceiling minus the field elevation, which is roughly the height of the airspace above the airport, not an MSL altitude.

   Source

   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) 3600
   • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) TI
   • Chart Users' Guide (complete), p. 27, Class D Airspace Class D Airspace Altitude in hundreds of feet MSL

10. 

    (Refer to the figure, area 1.) What is the ceiling of the Class C airspace above area 1?

    1. 4,000 feet AGL
    2. 1,300 feet MSL
    3. 4,000 feet MSL
    Show answer and explanation

    Answer: C. 4,000 feet MSL

    4,000 feet MSL. Area 1 lies in the Class C sector labeled 40 over 13. In these solid magenta labels the top number is the ceiling and the bottom number the floor, both in hundreds of feet MSL with the last two zeros left off, so this sector spans 1,300 to 4,000 feet MSL. The ceiling is MSL, not AGL, and 1,300 feet MSL is the floor of this sector, where the Class C airspace begins.

    Source

    • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) 4000
    • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) MSL
    • Chart Users' Guide (complete), p. 16, Class C Airspace The MSL ceiling and floor altitudes of each sector are shown in solid magenta figures with the last two zeros eliminated.

11. 

    (Refer to the figure, area 2.) A remote pilot plans an early-morning flight near Salina Rgnl (SLN) before its control tower opens. Which frequency should be monitored as the CTAF?

    1. 122.95 MHz
    2. 119.3 MHz
    3. 120.15 MHz
    Show answer and explanation

    Answer: B. 119.3 MHz

    119.3 MHz. The airport is printed in blue, so it has a control tower, and 'CT - 119.3' gives the tower's primary frequency. The star after it means the tower operates part-time, and the circled C means the same frequency is the Common Traffic Advisory Frequency when the tower is closed. 120.15 is the ATIS frequency (recorded airport information); 122.95 is UNICOM, used for services such as fuel requests, so neither is the CTAF.

    Source

    • FAA NASR 28-day subscription effective 2026-09-03, FRQ.csv 119.3
    • Chart Users' Guide (complete), p. 15, Airports Star indicates operation part-time.
    • Chart Users' Guide (complete), p. 15, Airports Follows the Common Traffic Advisory Frequency (CTAF)

12. 

    (Refer to the figure, area 1.) What is the ceiling of the Class D airspace at Hutchinson Rgnl (HUT)?

    1. 2,500 feet MSL
    2. 4,000 feet AGL
    3. 4,000 feet MSL
    Show answer and explanation

    Answer: C. 4,000 feet MSL

    4,000 feet MSL. The Class D airspace is outlined by a dashed blue line, and the number in the dashed blue box, 40, is its ceiling in hundreds of feet MSL. Altitudes of charted airspace are MSL, so reading it as 4,000 feet AGL is wrong: that would put the top about 1,543 feet higher, the field elevation. 2,500 feet MSL is the ceiling minus the field elevation, which is roughly the height of the airspace above the airport, not an MSL altitude.

    Source

    • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) 4000
    • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) TI
    • Chart Users' Guide (complete), p. 27, Class D Airspace Class D Airspace Altitude in hundreds of feet MSL

13. 

    (Refer to the figure, area 2.) What is the floor of the Class E airspace at area 2?

    1. The surface
    2. 700 feet AGL
    3. 1,200 feet AGL
    Show answer and explanation

    Answer: B. 700 feet AGL

    700 feet AGL. Area 2 lies inside the fuzzy magenta bands (vignettes) around Hutchinson: the nearest band, just south-west of area 2, has its sharp edge on the far side and fades toward area 2 and the airport. On the faded side of a magenta vignette, Class E airspace begins at 700 feet AGL, with Class G below. Area 2 is outside the dashed lines around the airport, so the floor is not the surface, and 1,200 feet AGL applies only beyond the vignette's sharp outer edge. A small UA flying below 400 feet AGL there stays in Class G airspace.

    Source

    • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) 700
    • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) SFC
    • Chart Users' Guide (complete), p. 17, Class E Airspace Controlled airspace floors of 700' above the ground are defined by a magenta vignette

14. 

    (Refer to the figure, area 1.) A remote pilot plans to fly a small UA at 200 feet AGL at area 1. Assume any control tower in the figure is operating. Is ATC authorization required?

    1. No; the dashed magenta line marks uncontrolled Class G airspace.
    2. Yes; area 1 is within the lateral boundaries of a Class E surface area (dashed magenta line).
    3. No; Class E airspace never requires ATC authorization for part 107 operations.
    Show answer and explanation

    Answer: B. Yes; area 1 is within the lateral boundaries of a Class E surface area (dashed magenta line).

    Yes. Area 1 is within the lateral boundaries of a Class E surface area (dashed magenta line). Under 14 CFR 107.41 a small UA may not operate in Class B, C, or D airspace or within the lateral boundaries of a Class E surface area without prior ATC authorization, which a remote pilot normally gets through LAANC or FAA DroneZone. The altitude does not matter: this airspace starts at the ground, so even a 200-foot flight is inside it, and the 400-foot limit of 107.51 does not replace the authorization requirement.

    Source

    • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) CLASS_E2
    • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) SFC
    • 14 CFR 107.41 No person may operate a small unmanned aircraft in Class B, Class C, or Class D airspace or within the lateral boundaries of the surface area of Class E airspace designated for an airport

15. 

    (Refer to the figure, area 1.) A remote pilot will fly near Pond Creek Muni (2K1) and wants to monitor local traffic. Which frequency is the CTAF for this airport?

    1. 123.0 MHz
    2. 122.9 MHz
    3. 122.7 MHz
    Show answer and explanation

    Answer: B. 122.9 MHz

    122.9 MHz. Pond Creek Muni is printed in magenta, so it has no control tower. In its data block the frequency followed by the circled C symbol is the Common Traffic Advisory Frequency, where pilots announce their positions. The Remote Pilot Study Guide advises monitoring the tower frequency or CTAF to get a good idea of what traffic to expect. Neither 122.7 nor 123.0 appears in this airport's data block, so neither is its CTAF.

    Source

    • FAA NASR 28-day subscription effective 2026-09-03, FRQ.csv 122.9
    • Chart Users' Guide (complete), p. 15, Airports Follows the Common Traffic Advisory Frequency (CTAF)
    • FAA-G-8082-22, p. 40, Chapter 7, Radio Communication Procedures A CTAF is a frequency designated for the purpose of carrying out airport advisory practices while operating to or from an airport without an operating control tower.

16. 

    (Refer to the figure, area 1.) A remote pilot plans to fly a small UA at 200 feet AGL at area 1. Assume any control tower in the figure is operating. Is ATC authorization required?

    1. No; area 1 is beneath the Class C shelf, which begins at 4,300 feet MSL there.
    2. Yes; any location beneath the solid magenta Class C lines requires ATC authorization.
    3. Yes; the location is inside the Mode C veil, which requires LAANC authorization.
    Show answer and explanation

    Answer: A. No; area 1 is beneath the Class C shelf, which begins at 4,300 feet MSL there.

    No. Area 1 is under the Class C sector labeled 58/43, which begins at 4,300 feet MSL. The ground there is about 2,310 feet MSL, so a flight at 200 feet AGL stays far below that floor, outside the Class C airspace, and no dashed Class D or Class E surface-area line surrounds the area. Under 14 CFR 107.41, ATC authorization is needed only in Class B, C, or D airspace or within the lateral boundaries of a Class E surface area. Being near an airport, under a shelf, or inside a Mode C veil does not by itself require authorization.

    Source

    • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) 4300
    • FAA Class Airspace shapefile (NASR subscription effective 2026-09-03) 700
    • 14 CFR 107.41 No person may operate a small unmanned aircraft in Class B, Class C, or Class D airspace or within the lateral boundaries of the surface area of Class E airspace designated for an airport

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