GIS Cartography and Visualization 3

Question 1

What is a 'datum shift' in GIS cartography?

Accepted Answer

A positional offset between features referenced to different geodetic datums

Answer

A datum shift occurs when coordinates are transformed between two datums (e.g., NAD27 to NAD83), causing positional offsets of meters to hundreds of meters.

Question 2

Which type of map is most appropriate for showing the movement of goods between cities?

Accepted Answer

Flow map

Answer

Flow maps use lines of varying width or direction to represent the volume and direction of movement between geographic locations.

Question 3

What does CMYK stand for in map printing?

Accepted Answer

Cyan, Magenta, Yellow, Black

Answer

CMYK (Cyan, Magenta, Yellow, Key/Black) is the subtractive color model used in professional map printing.

Question 4

A cartogram distorts geographic space to be proportional to:

Accepted Answer

Population or another thematic variable

Answer

A cartogram replaces true geographic area with a statistical variable such as population, GDP, or disease cases.

Question 5

Which contour line connects points of equal elevation on a topographic map?

Accepted Answer

Isohypse

Answer

An isohypse (topographic contour line) connects all points at the same elevation above a reference datum.

GIS - Geographic Information System Practice Test

GIS - Geographic Information System Practice Test

GIS Cartography and Visualization 3