FAA Part 107 Drone Practice Test

What does the line of latitude primarily measure?

1. The degrees of latitude east and west of the Prime Meridian

2. The degrees of latitude north and south from the equator

3. The degrees of latitude east and west of Greenwich, England

4. The degrees of longitude north and south from the equator

The correct answer is: The degrees of latitude north and south from the equator

The line of latitude primarily measures the degrees of latitude north and south from the equator. Latitude lines are horizontal and run parallel to the equator, which is designated as 0 degrees latitude. As you move towards the poles, the latitude increases up to 90 degrees north and 90 degrees south. This measurement is essential in navigation and cartography as it helps in locating positions on the Earth's surface relative to the equator. Understanding latitude is crucial for drone operations, especially when considering aspects such as flight planning, airspace regulations, and geographic restrictions. By knowing how latitude works, pilots can effectively navigate and ensure compliance with applicable regulations based on geographic constraints. The other options reference measurements that do not pertain to latitude. For example, the concepts of longitude and the Prime Meridian, while relevant in geographic measurements, are not measurements of latitude itself.