SIFT SIFT Aviation Regulations and Airspace Questions and Answers 1 — Questions and Answers
Question 1: What does the term 'Class D airspace' refer to in US aviation regulations?
- Airspace surrounding small general aviation airports with no control tower
- Airspace around airports with an operating control tower that serves commercial flights
- Airspace around airports with an operating control tower, typically extending to 2,500 feet AGL (Correct answer)
- Airspace reserved exclusively for military operations
Correct answer: Airspace around airports with an operating control tower, typically extending to 2,500 feet AGL
Class D airspace surrounds airports with an operating control tower and typically extends from the surface to 2,500 feet AGL within a 4-nautical-mile radius.
Question 2: What is the primary purpose of a NOTAM (Notice to Air Missions)?
- To provide weather forecasts to pilots before flight
- To alert pilots to temporary changes or hazards affecting airspace, facilities, or procedures (Correct answer)
- To assign transponder codes for IFR flights
- To authorize military aircraft to enter restricted airspace
Correct answer: To alert pilots to temporary changes or hazards affecting airspace, facilities, or procedures
A NOTAM alerts pilots and flight crew to temporary changes, hazards, or information critical to safe flight operations that may not appear on standard charts.
Question 3: What minimum altitude must Army helicopters maintain when flying over a congested area?
- 500 feet AGL
- 1,000 feet above the highest obstacle within 2,000 feet horizontally (Correct answer)
- 300 feet AGL
- 2,000 feet MSL
Correct answer: 1,000 feet above the highest obstacle within 2,000 feet horizontally
FAA regulations require aircraft over congested areas to maintain at least 1,000 feet above the highest obstacle within a 2,000-foot horizontal radius.
Question 4: Which type of airspace requires a clearance from ATC before entry under all conditions?
- Class G airspace
- Class E airspace
- Class B airspace (Correct answer)
- Class D airspace
Correct answer: Class B airspace
Class B airspace surrounds the nation's busiest airports and requires an ATC clearance before entry regardless of weather conditions.
Question 5: What is a Temporary Flight Restriction (TFR) most commonly used for?
- Permanently closing airspace around military bases
- Protecting airspace during special events, disasters, or VIP movement (Correct answer)
- Assigning permanent altitude blocks to commercial airlines
- Restricting general aviation to daylight hours only
Correct answer: Protecting airspace during special events, disasters, or VIP movement
TFRs are issued to protect airspace temporarily during events such as natural disasters, VIP movements, airshows, or national security situations.
Question 6: What does 'VFR on top' mean in aviation operations?
- Flying at the highest available altitude
- An IFR clearance allowing the pilot to fly in VFR conditions above clouds at a VFR altitude (Correct answer)
- A clearance for helicopters to fly above Class B airspace
- Flying without any ATC communication
Correct answer: An IFR clearance allowing the pilot to fly in VFR conditions above clouds at a VFR altitude
'VFR on top' is an IFR clearance that allows the pilot to fly at a VFR altitude while still on an IFR flight plan, maintaining VFR cloud clearance above a cloud layer.
SIFT SIFT Aviation Regulations and Airspace Questions and Answers 1
What does the term 'Class D airspace' refer to in US aviation regulations?