CPC Airspace Classification & Structure 2 — Questions and Answers
Question 1: A Special Use Airspace (SUA) that is active and published in NOTAMs but not continuously staffed is known as what?
- Prohibited Area
- Restricted Area (Correct answer)
- Warning Area
- Alert Area
Correct answer: Restricted Area
Restricted Areas contain hazardous operations and may be activated per NOTAM, requiring ATC coordination for transit.
Question 2: Which Special Use Airspace type cannot be transited by civil aircraft under any circumstances?
- Military Operations Area
- Alert Area
- Prohibited Area (Correct answer)
- Warning Area
Correct answer: Prohibited Area
Prohibited Areas are established for national security or welfare, and civil flight within them is not permitted.
Question 3: Military Operations Areas (MOAs) require civil pilots to exercise extreme caution but do NOT require ATC clearance. What must ATC do when providing services in or near an active MOA?
- Prohibit all IFR traffic
- Issue traffic advisories and suggest avoidance (Correct answer)
- Automatically re-route all flights
- Declare the area prohibited
Correct answer: Issue traffic advisories and suggest avoidance
Controllers must issue traffic advisories and suggest avoidance when MOAs are active, though IFR flights may be cleared through with separation.
Question 4: What does the designation 'P-40' on an aeronautical chart indicate?
- Warning Area 40 nm offshore
- Prohibited Area #40 (Correct answer)
- Parachute Area at 40,000 ft
- Positive Control Area zone 40
Correct answer: Prohibited Area #40
The 'P' prefix in airspace designations stands for Prohibited Area, with the number identifying the specific area.
Question 5: Class C airspace requires all aircraft to have which equipment when operating within the outer ring?
- Only radio communication
- Transponder with Mode C and two-way radio (Correct answer)
- ADF receiver and transponder
- DME and VHF radio
Correct answer: Transponder with Mode C and two-way radio
Class C airspace requires a Mode C transponder and two-way radio communication capability for all aircraft.
Question 6: What is the standard horizontal radius of the outer area of Class C airspace?
- 5 nautical miles
- 10 nautical miles
- 20 nautical miles (Correct answer)
- 30 nautical miles
Correct answer: 20 nautical miles
The outer area of Class C airspace extends to approximately 20 nautical miles from the primary airport, though participation in services is recommended but not required.
CPC Airspace Classification & Structure 2
A Special Use Airspace (SUA) that is active and published in NOTAMs but not continuously staffed is known as what?