AQT Navigation & Air Traffic Control

Question 1

What are the classes of airspace in the US National Airspace System?

Accepted Answer

Class A, B, C, D, E (controlled) and Class G (uncontrolled)

Answer

US airspace is classified alphabetically: A (18,000'+, IFR only), B (major airports), C (medium airports), D (smaller towered airports), E (controlled but less restrictive), and G (uncontrolled).

Question 2

What is a VOR and how is it used in navigation?

Accepted Answer

A ground-based radio navigation aid that provides bearing information to or from the station, used for en route and approach navigation

Answer

VHF Omnidirectional Range (VOR) stations transmit radio signals that allow aircraft receivers to determine their magnetic bearing (radial) from the station, forming the backbone of traditional airway navigation.

Question 3

What is IFR and when is it required?

Accepted Answer

Instrument Flight Rules: required when weather conditions are below VFR minimums, and always required in Class A airspace

Answer

IFR requires pilots to navigate using instruments and follow ATC instructions. It is mandatory in Class A airspace (above 18,000') and when visibility or cloud clearance falls below VFR minimums.

Question 4

What is RNAV (Area Navigation)?

Accepted Answer

A navigation method allowing aircraft to fly any desired flight path using onboard navigation systems rather than following ground-based radio aids

Answer

RNAV uses GPS, inertial reference systems, or DME/DME to allow direct routing between any two points, not limited to flying from one VOR to another, increasing efficiency and airspace capacity.

Question 5

What is a NOTAM?

Accepted Answer

A Notice to Air Missions providing time-critical information about hazards, restrictions, or changes affecting flight operations

Answer

NOTAMs alert pilots to temporary or permanent hazards, airspace restrictions, navigation aid outages, runway closures, and other changes that could affect flight safety, and must be checked during preflight planning.

AQT - Aviation Qualification Test Practice Test

AQT - Aviation Qualification Test Practice Test

AQT Navigation & Air Traffic Control