CTO Airspace Structure & Regulations 2 — Questions and Answers
Question 1: What is the upper limit of Class G airspace when Class E airspace begins at 1,200 feet AGL in the continental US?
- 700 feet AGL
- 1,200 feet AGL (Correct answer)
- 1,500 feet AGL
- 3,000 feet AGL
Correct answer: 1,200 feet AGL
Class G airspace extends from the surface up to, but not including, the base of overlying Class E airspace, which in this case is 1,200 feet AGL.
Question 2: Which FAR part governs the general operating and flight rules that pilots must follow in controlled airspace?
- FAR Part 61
- FAR Part 71
- FAR Part 91 (Correct answer)
- FAR Part 121
Correct answer: FAR Part 91
FAR Part 91 contains the general operating and flight rules applicable to all aircraft operating in US national airspace.
Question 3: A NOTAM establishes a Temporary Flight Restriction (TFR). What type of NOTAM is typically used for TFRs?
- FDC NOTAM (Correct answer)
- NOTAM (D)
- Pointer NOTAM
- Military NOTAM
Correct answer: FDC NOTAM
Flight Data Center (FDC) NOTAMs are used to disseminate regulatory information including TFRs, chart amendments, and IFR procedure changes.
Question 4: What minimum weather conditions are required for VFR flight in Class B airspace?
- 3 SM visibility, 500-1000-2000 cloud clearance
- Clear of clouds, 3 SM visibility (Correct answer)
- 5 SM visibility, 1,000 ft below clouds
- 3 SM visibility, 1,000 ft above clouds
Correct answer: Clear of clouds, 3 SM visibility
Class B airspace VFR requirements are simply 3 statute miles visibility and clear of clouds, reflecting the positive control environment.
Question 5: An aircraft is operating in Class D airspace. What is the maximum speed allowed below 2,500 feet AGL within 4 nautical miles of a Class D airport?
- 156 knots
- 200 knots (Correct answer)
- 250 knots
- No speed restriction applies
Correct answer: 200 knots
FAR 91.117 limits aircraft to 200 knots indicated airspeed when within 4 NM of the primary airport and below 2,500 feet AGL in Class D airspace.
Question 6: Which airspace classification surrounds most of the nation's busiest airports and requires an ATC clearance to enter?
- Class C
- Class D
- Class B (Correct answer)
- Class E
Correct answer: Class B
Class B airspace surrounds the nation's busiest airports and requires an explicit ATC clearance to enter, unlike Class C which only requires two-way communication.
Question 7: Special Use Airspace (SUA) designated as 'Prohibited' means:
- Flight is discouraged but permitted with ATC approval
- Flight is not permitted under any circumstances (Correct answer)
- Flight requires a waiver from the FAA
- VFR flight is prohibited but IFR is allowed
Correct answer: Flight is not permitted under any circumstances
Prohibited areas are established for security or national welfare reasons and no aircraft may operate within them without explicit authorization from the controlling agency.
CTO Airspace Structure & Regulations 2
What is the upper limit of Class G airspace when Class E airspace begins at 1,200 feet AGL in the continental US?