GPS/GIS Test 2 10/19/21

Question 1

Something that predicts spatial relationships and portrays objects form the perspective of space.

Answer 1

Map

Question 2

These individual map themes originally drawn on thin sheets of glass can be placed atop one another on a basemap to depict locations of different things.

Answer 2

Layers

Question 3

This physician often credited as the creator of the first GIS was able to pinpoint the source of a cholera outbreak in London using a basemap along with plotted points of fatalities.

Answer 3

John Snow

Question 4

This component of a spatial database is shown in the form of a table to list one or many different trait belonging to a single feature.

Answer 4

Attributes

Question 5

This feature type is formed from a sequence of at least two coordinates.

Answer 5

Line

Question 6

Feature type formed by a sequence of paired coordinates where the starting point is also the ending point.

Answer 6

Polygon

Question 7

Feature type that only has one set of coordinates.

Answer 7

Point

Question 8

These lines stretch from East to West and are parallel to each other.

Answer 8

Latitude

Question 9

The agency responsible for handling Mississippi GIS needs including imaging, etc.

Answer 9

MARIS

Question 10

The building blocks of a raster data model.

Answer 10

Pixels

Question 11

This dataset uses discreet point-line segments to identify the locations of Earth’s features.

Answer 11

Vector

Question 12

This dataset is displayed as a matrix of rows and columns and represents the Earth’s features with small consistently sized squares.

Answer 12

Raster

Question 13

The spatial relationship among features.

Answer 13

Topology

Question 14

The grid that encompasses the Earth.

Answer 14

Gradicule

Question 15

The ______ is the line of 0 degrees longitude.

Answer 15

Prime Meridian

Question 16

If the geographic extent of your project is small you can assume that the Earth is flat and use no projection. This is referred to as a ______ surface.

Answer 16

Planar

Question 17

These enable the reshaping of Earth by mathematically transforming the spherical coordinates into a 2-D space.

Answer 17

Projection

Question 18

These are referencing systems used to describe specific locations by providing XY locations for features and within the GPS.

Answer 18

Coordinates

Question 19

This coordinate system was developed by the US Army Corps of Engineers and is made up of 60 North/South oriented zones that are 6 degrees longitude wide.

Answer 19

Universal Transverse Mecator (UTM)

Question 20

This coordinate system is consistent across the entire US and is utilized after natural disasters.

Answer 20

The US National Grid

Question 21

This coordinate system divides the US into over 120 zones.

Answer 21

State Plane Coordinate

Question 22

This defines the size and shape of the Earth and the origin and orientation of coordinate systems designed to map the Earth.

Answer 22

Datum

Question 23

This topological problem describes a small polygon that occurs when either shared boundaries are entered separately for continuous polygons or when the features of two layers are overlaid but do not match exactly.

Answer 23

Sliver

Question 24

GIS is defined as a system of computer _________, ________, and _______ that support the capture, management, analysis, and display of data management of spacial data.

Answer 24

Hardware, Software, and People

Question 25

All features have a _____ component and a ______ component.

Answer 25

Spatial/Attribute

Question 26

The four GIS subsystems.

Answer 26

1. Input
2. Preprocessing
3. Analysis
4. Output

Question 27

The 3 projection services.

Answer 27

1. Planar
2. Cone
3. Cylindrical

Question 28

Explain the difference between projections, coordinate systems, and datums.

Answer 28

Projections take 3-D Earth and project it to a 2-D surface. Coordinate systems describe the location of a feature and is usually set to a specific projections. Datums describe the shape of the Earth.