PPL - Basics of Air Navigation and Direction DONE

Earth is best described as ...

• An oval

• A spheroid

• An oblate oval

• An oblate spheroid

What direction does Earth spin when looking from below (South Pole)?

• anticlockwise

• clockwise

Which of these statements is incorrect

• A great circles plane passes through the centre of the Earth

• A great circle must pass through the north and south poles

• The Equator is a great circle

• A great circle bisects Earth into two equal parts

Compared to any other circle a great circle has..

• The greatest radius and greatest curvature

• The smallest radius and least curvature

• The greatest radius and least curvature

• The smallest radius and greatest curvature

The shortest distance between two points on Earth is found with a ..

• Great circle

• Small circle

• Rhumb Line

Radio waves follow ... paths

• Great circle

• Small circle

• Rhumb Line

Which of these are correct

• Every parallel of latitude is a small circle

• Every meridian of longitude is a small circle

• A small circles plane does not pass through the Earths centre

• A small circle cuts all meridians at the same angle

Choose all that are correct: A rhumb line ..

• Cuts all meridians at the same angle

• Cuts all parallels at the same angle

• Is the shortest distance between 2 points

• is used for navigation simplicity

The datum for latitude is ... and reaches a maximum of ...

• the equator, 180 degrees

• the prime meridian, 180 degrees

• the equator, 90 degrees

• the prime meridian, 90 degrees

1nm is defined as a ... arc on a great circle

• 1 second

• 1 minute

• 1 degree

• 60 degrees