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WorksheetsGeographic Information System
Total questions: 50
Worksheet time: 39mins
What is datum?
A mathematical model
The mathematical model related to real-world features
A system of coordinates.
Real-world features are projected with minimum distortion from the round earth to a flat map
Which among the following is not related to GIS software’s?
Tally
ArcGIS
Surfer
QGIS
Which one of the following is a Open Source GIS Software?
ArcGIS
AutoCAD MAP
ILWIS
SURFER
The term define angular distance from equator to poles ?
Latitude
Longitude
Coordinate System
none of the above
What does 'WGS' in WGS84 stands for?
World Geodetic System
World Geographic System
World Geocoordinate System
World Grid System
The equipotential surface of the Earth’s gravity field which best fits, in a least squares sense, global mean sea level is called
Equator
Datum
Geoid
World Coordinate System
When converting Degrees/Minutes/Seconds of latitude in the Northern Hemisphere to decimal degrees
Add the three values together and divide the sum by 3600, i.e., (Deg+Min+Sec)/3600
Subtract the seconds from the minutes, then the minutes from the degrees i.e. (Deg-(Min-Sec))
Divide the Seconds by 3600, divide the Minutes by 60, then add those values to the degrees, i.e. (Deg+(Min/60)+(Sec/3600))
Multiply the Minutes by 60, multiply the seconds by 3600 and then add all to the degrees, i.e., (Deg+(Min*60)+(Sec*3600))
What is located at (5,3)?
The park
Nothing
Point A
Point B
What is the ordered pair of point E?
(2,5)
(-5,2)
(5,2)
(5,-2)
The entire earth surface is divided into zones in which type of map projection?
Polyconic projection system
Cylindrical projection
Lambert- Azimuthal equal area projection
UTM projection
A value applied to the origin of a coordinate system to change the y-coordinate readings.
False Easting
False Nothing
Datum
None of the above
A coordinate system that specifies each point uniquely by a pair of numerical coordinates, which are the signed distances to the point from two fixed perpendicular oriented lines, measured in the same unit of length.
Cartesian coordinate system
Geographic Coordinate system
A World Coordinate system
none of the above
Which of the following statements is true about the capabilities of GIS?
Data capture and preparation
Data management, including storage and maintenance
Data manipulation and analysis
Data presentation
All of the above
By ‘spatial data’ we mean data that has
Positional values
Complex values
Decimal values
Graphic values
Statement 1: A Geographic Coordinate System defines where the data is located on the earth’s surface.
Statement 2: A Projected Coordinates System tells the data how to draw on a flat surface, like on a paper map or a computer screen.
Which of the statements are true?
Only Statement 2 is true
Only Statement 1 is True
Both the Statements are true
None of the statements are true
A data set is characterized by the use of sequential points or vertices to define a linear segment.
Vector Data
Raster Data
Numerical Data
Attribute data
A data model that incorporates the use of a grid-cell data structure where the geographic area is divided into cells identified by row and column
Attribute Data
Vector Data
Raster Data
Numerical Data
Which model is used to represent the earth’s surface and where that model is positioned relative to the surface?
Map Projections
Universal Traverse Mercator
Geodetics
Datum
Which of the following is true about ‘Discrete fields’?
Discrete fields divide the study space in mutually exclusive, bounded parts, with all locations in one part having the same field value
‘Land classification’ is an example of discrete fields
Discrete fields make use of ‘bounded’ features
All of the above
Interpolation is made possible by a principle called
Spatial auto-correction
Spatial Autocorrelation
Thematic Autocorrelation
Thematic auto-correction
The fundamental principle which refers to the fact that locations that are closer together are more likely to have similar values than locations that are far apart, is commonly referred to as
Tobler’s first low of Geography
Anthony’s first law of Geography
Kepler’s first law of Geography
Thompson’s first law of Geography
TIN stands for
Traffic Internet Network
Temporal Interest Network
Triangulated Irregular Network
Temperature Interface Node
The ‘boundary model’ is sometimes also called
Temporal data model
Temporal discrete model
Topological discrete model
Topological data model
Which of the following statements are NOT true about the ‘temporal dimension’?
Valid time (or world time) is the time when an event really happened, or a string of events took place.
Time can be represented as ‘absolute’ or ‘relative’
Time can be considered to be ‘linear’ extending from past to the present (‘now’), & into the future
Time cannot be measured along a ‘discrete’ or ‘continuous’ scale.
When measuring time, we speak of granularity as the precision of a time value in a GIS or database.
Which of the following is true about DBMS?
A DBMS provides a high-level, ‘declaration query language’
A DBMS supports the use of a ‘data model’
A DBMS includes ‘data backup’ and ‘recovery’ functions to ensure data availability at all times
A DBMS allows the control of ‘data redundancy’
All of the above
Which of the following belong to the eight spatial relationships?
Disjoint, meets, equals
Inside, covered by
Contains, covers, overlaps
All of the above
Sliver polygons are formed due to
Small areas resulting from spatial overlays
Small areas resulting from Grid based analysis methods
Small areas resulting from Non-Spatial and spatial data intersection
Interpolation of contour lines while DEM generation
Which of the satellite are used for land use land cover mapping?
Resourcesat
LISS III
LISS IV
All of the above
Satellite images, scanned data and photographs are examples of what type of data?
Image Data
Vector Data
Feature Data
Theme
The various models that are used to approximate the shape of the Earth are called
Ellipsoids
Spheres
Datums
Coordinates
To create a new data layer from selected records in an existing data layer, what ArcMap option must you use?
Rectify Data
Add Data
Import Data
Export Data
A component of an ArcMap project that contains layers that form interactive maps is called a
Data Frame
View
Attribute Table
Chart
What ArcGIS function allows you to navigate more quickly to data storage locations?
Add Data
Windows folder explorer
Connect to folder
Add New data frame
The ArcGIS program that allows you to view and analyze geographic data is called
ArcMap
ArcCatalog
ArcToolBox
None of the above
The process of creating map features from a table of addresses is called
Geocoding
Georeferencing
Geomonitoring
Geofencing
Data represented as points, lines, and polygons are of what type of data?
Continuous data
Raster data
Feature data
Image data
The act of using computer drawing tools to draw feature data using remotely sensed image data is called
Dissolving
Clipping
Georeferencing
Heads-up digitizing
What is the data file extension of an ArcMap project file?
.doc
.prj
.mxd
.shp
A shapefile differs from a geodatabase because
A shapefile cannot be created in ArcCatalog but a geodatabase can.
A shapefile can contain only point, line or polygon feature types but a geodatabase can use other geometric types.
A shapefile is the only data format that can be viewed in ArcCatalog.
A shapefile can contain a single feature class and a geodatabase can contain multiple feature classes.
Which of the following is an example of a quantitative attribute?
Name
Telephone Number
Population
Address
Measurements taken in GIS analysis may differ based on the coordinate system and map projection used because
Locations on the face of the Earth are constantly changing making accurate measurement impossible.
The units of measurement would be different.
Different map projections have different degrees of distortion.
The features being measured would probably differ
A powerful type of spatial interpolation that uses complex mathematical formulas to estimate values at unknown points based on the values at known points.
Intersection
Krigging
Geoprocessing
Spline Interpolation
Model based on the notion of real-world entities and relationships among them
interstellar Model
Topology Model
Entity Relationship Model
Spaghetti models
Statement 1: Inverse Distance Weighted interpolation is a deterministic spatial interpolation approach to estimate an unknown value at a location using some known values with corresponding weighted values.
Statement 2: Inverse distance weighted (IDW) interpolation explicitly makes the assumption that things that are close to one another are more alike than those that are farther apart. To predict a value for any unmeasured location, IDW uses the measured values surrounding the prediction location.
Statement 1 is Correct and 2 is Wrong
Statement 2 is Correct and 1 is Wrong
Both Statements are correct
Both Statements are wrong
Which one is not a DEM data?
ASTER
SRTM
Landsat
Alos Pulsar
Using degrees for distance measurement in GIS analysis is not recommended because
Degrees differ based on the elevation of a region.
Degrees of longitude differ because they do not have constant distance between them as you move from equator to pole.
Degrees differ based on the temperature of a region.
Degrees are not used for identifying locations for data generated since 1957.
The display that is used to show the distribution of pixel values in a data layer is called a
Attribute table
Layer Properties
Histogram
Data Frame Properties
What would be the best legend type to use on an ArcMap map layout to plot world cities with varying populations?
Graduated symbol
Unique value
Graduated color
Single symbol
A component of an ArcGIS project that displays data frames, charts, reports and other graphic elements that may be printed is called a
Layout
Table
Extension
Script
A component of an ArcGIS project that displays data about map features in tabular form is called a
ArcCatalog
Attribute Data
Layout
Feature Class
