Conic and Azimuthal Map Projections Quiz

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Questions and Answers

What is the main characteristic of a tangent conic projection?

It preserves directions from a central point

It touches the Earth at a single latitude (correct)

It touches the Earth at two points

It projects the Earth onto a flat plane that is tangent at the Equator

Which of the following is not a type of azimuthal or planar projection?

Equatorial

Cylindrical (correct)

Polar

Oblique

What does a representative fraction map scale, such as 1:24,000, indicate?

The map shows 1 unit for every 24,000 units on the Earth's surface

The map shows 1 inch for every 24,000 inches on the Earth's surface

The map shows 1 kilometer for every 24,000 kilometers on the Earth's surface

The map reduces everything on the Earth to one 24,000th of its real size (correct)

Which type of map scale shows more detail but less area?

Large-scale map Signup and view all the answers

What is the purpose of a graphical scale on a map?

To provide a visual indication of the actual distance between two points Signup and view all the answers

Which type of map projection preserves directions from a central point?

Azimuthal projection Signup and view all the answers

Which of the following is NOT a reason for projecting the Earth's surface onto a plane?

It's easier to measure distance on a curved surface Signup and view all the answers

Which property of map projections ensures the correct representation of shapes?

Conformality Signup and view all the answers

What is the relationship between conformality (shape) and equivalence (size) in map projections?

A cartographer has to decide which one to sacrifice Signup and view all the answers

What is the primary purpose of map projections?

To translate latitude and longitude on the Earth's surface to x and y coordinates on a plane Signup and view all the answers

Which of the following is NOT a property of map projections?

Orthogonality Signup and view all the answers

What is the primary reason that map projections involve distortion?

Converting from a 3D surface to a 2D plane is not straightforward Signup and view all the answers

Which of the following is considered a large-scale map compared to a map with an RF of 1:1,000,000?

A map with an RF of 1:1,000 Signup and view all the answers

What is the primary purpose of a reference map?

To deliver location information to the map user Signup and view all the answers

Which of the following statements about reference maps is true?

Reference maps are used primarily for teaching and display Signup and view all the answers

Which type of map is used to illustrate the physical features of land and water within an area?

Physical map Signup and view all the answers

How do thematic maps differ from reference maps?

Thematic maps are concerned with a particular theme or topic of interest, while reference maps emphasize the location of geographic features Signup and view all the answers

How can GIS technology be used with road maps?

GIS technology can present maps that change as the user drives, with a voice telling the user which direction to turn Signup and view all the answers

Study Notes

Tangent Conic Projection

Tangent conic projections are characterized by their contact with the globe at one or two standard parallels.

Azimuthal Projections

Conic is not a type of azimuthal or planar projection.

Map Scale

A representative fraction (RF) map scale, such as 1:24,000, indicates that one unit on the map represents 24,000 units in the real world.
A larger map scale (e.g., 1:10,000) shows more detail but less area compared to a smaller scale map (e.g., 1:100,000).

Graphical Scale

A graphical scale provides a visual representation of the map scale, allowing for direct measurement of distances on the map.

Azimuthal Projection

An azimuthal projection preserves directions from a central point.

Reasons for Map Projections

Conic is NOT a reason for projecting the Earth's surface onto a plane.

Map Projection Properties

Conformality ensures the correct representation of shapes on a map.
A map projection can be either conformal (preserving shape) or equivalent (preserving area), but not both.
The primary purpose of map projections is to represent the three-dimensional Earth on a two-dimensional surface.
Equidistance is NOT a property of map projections.

Distortion

Distortion in map projections is unavoidable because the Earth is a sphere and a map is a flat surface.
A map with an RF of 1:10,000 is considered a large-scale map compared to a map with an RF of 1:1,000,000.

Reference Maps

The purpose of reference maps is to provide general information about the geographic features of an area.
Reference maps focus on location and generalized features, while thematic maps emphasize a specific theme.

Thematic Maps

Reference maps illustrate physical features of land and water, while thematic maps focus on specific data or themes, such as population density, rainfall patterns, or geological formations.
GIS technology can be used with road maps to create interactive map applications that provide real-time traffic information, directions, and other navigation services.

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Description

Test your knowledge on conic and azimuthal map projections. Learn about the types of map projections, properties, and their characteristics in this quiz.