ADX Airspace Classification and NOTAMs 1 — Questions and Answers
Question 1: Which class of airspace requires an explicit ATC clearance before entry for VFR aircraft?
- Class B (Correct answer)
- Class C
- Class D
- Class E
Correct answer: Class B
Class B airspace requires an explicit ATC clearance for all aircraft, including VFR flights, before entry.
Question 2: Class A airspace in the contiguous United States extends from FL180 to what upper limit?
- FL240
- FL600 (Correct answer)
- FL450
- FL350
Correct answer: FL600
Class A airspace extends from 18,000 feet MSL (FL180) to FL600 in the contiguous United States.
Question 3: What is the floor of Class A airspace in the contiguous United States?
- 10,000 feet MSL
- 14,500 feet MSL
- 18,000 feet MSL (Correct answer)
- 24,000 feet MSL
Correct answer: 18,000 feet MSL
Class A airspace begins at 18,000 feet MSL (FL180), where all operations must be conducted under IFR.
Question 4: NOTAMs are primarily used to provide which type of information to pilots and dispatchers?
- Long-term climate and weather trends
- Time-critical aeronautical information affecting the safety of flight (Correct answer)
- Airline schedule changes and gate assignments
- Routine airport operating hours and fuel prices
Correct answer: Time-critical aeronautical information affecting the safety of flight
NOTAMs provide time-critical aeronautical information about temporary or short-notice changes to facilities, services, and procedures that affect flight safety.
Question 5: Which type of NOTAM contains regulatory information such as amendments to published instrument approach procedures?
- NOTAM (D)
- Pointer NOTAM
- FDC NOTAM (Correct answer)
- NOTAM (L)
Correct answer: FDC NOTAM
FDC (Flight Data Center) NOTAMs contain regulatory information including amendments to published instrument procedures, chart corrections, and TFRs with legal authority.
Question 6: Class D airspace typically extends from the surface to what altitude AGL?
- 700 feet AGL
- 1,200 feet AGL
- 2,500 feet AGL (Correct answer)
- 4,000 feet AGL
Correct answer: 2,500 feet AGL
Class D airspace typically extends from the surface to 2,500 feet AGL around airports with an operating control tower.
Question 7: Which class of airspace has no speed restriction imposed by the airspace classification itself?
- Class B
- Class C
- Class D
- Class A (Correct answer)
Correct answer: Class A
Class A airspace, which begins at FL180, has no airspace-class speed restriction; speed limits apply below 10,000 feet MSL and in other specific circumstances.
ADX Airspace Classification and NOTAMs 1
Which class of airspace requires an explicit ATC clearance before entry for VFR aircraft?