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WorksheetsCapacity Building Measure on Integrated Urban Planning Using GIS
Total questions: 55
Worksheet time: 28mins
When joining a CSV file to a shapefile in QGIS, why is it important to create a sidecar file with a .csvt extension before importing the CSV file?
To import the CSV file as a vector layer with geometry
To specify the data types for each column in the CSV file
To convert the CSV file into a shapefile
To create unique IDs for each feature in the shapefile
When importing a text file into QGIS, which of the following coordinates represent the X-coordinate?
Latitude
Longitude
Elevation
Population
Which Coordinate Reference System (CRS) should be selected when working with latitude and longitude data in QGIS?
NAD 83
UTM Zone 33N
WGS 84
EPSG 4326
In QGIS, after loading a delimited text file, which option should be selected in the Geometry definition section if the import chooses incorrect fields for X and Y coordinates?
Modify the file format
Manually select the correct fields
Re-import the file
Change the projection
What is the purpose of the GEOID field in a shapefile when joining it with a CSV file?
To store latitude values
To provide unique identification for each feature
To track population data
To format the file for mapping
Why is it necessary to create a .csvt file for a CSV file in QGIS?
To enable spatial queries
To specify data types for each column
To calculate distances
To convert it to a shapefile
Which option should you select when importing a CSV file as a table without geometry into QGIS?
Import as vector layer
Import as raster layer
No geometry (attribute only table)
Assign default geometry
When adding a join between a shapefile and a CSV file in QGIS, what must be selected in the 'Join field' and 'Target field' to link the tables?
Population and Latitude
X and Y coordinates
Unique ID fields from both files
File names
What is the purpose of selecting the 'Graduated' style in QGIS when visualizing a shapefile with joined population data?
To symbolize data based on geometry
To assign colors based on population ranges
To calculate area and perimeter
To display text labels
In the 'Graduated' style dialog, what does the 'Quantile (Equal Count)' mode do?
Divides data into equal population groups
Adjusts the color ramp according to geometry
Assigns symbols to specific attributes
Randomly distributes values
What tool should be used in QGIS to zoom in on a specific area of the map for closer inspection?
Pan
Identify Features
Zoom in
Measure
Which of the following band combinations in SCP (Semi-Automatic Classification Plugin) is used to highlight vegetation in red for Landsat imagery?
RGB = 4-3-2
RGB = 3-2-1
RGB = 5-4-3
RGB = 6-5-4
In SCP, what is the purpose of creating ROIs (Regions of Interest) during the classification process?
To change the projection of the raster
To collect spectral signatures for land cover classes
To calculate surface temperatures
To adjust image brightness
Which of the following is the correct Class ID for 'Built-up' in this classification process?
1
2
3
4
When manually drawing an ROI in SCP, which of the following actions closes the polygon?
Double-clicking the starting point
Left-clicking twice
Right-clicking after defining vertices
Pressing the Enter key
What does the 'Dist' value control when using the automatic region-growing algorithm to create an ROI in SCP?
The color of the ROI
The accuracy of the classification
The size of the ROI
The shape of the ROI
In SCP, after defining the Class ID and Macroclass ID, what happens when you save the ROI?
The spectral signature is calculated and saved
The image is cropped
The band order is changed
The entire raster is reclassified
Which class of land cover is typically highlighted in red in the color composite RGB = 4-3-2?
Water
Built-up
Vegetation
Bare soil
What type of error is displayed when 'Bare soil' is classified as 'Built-up' in SCP?
Spectral overlap
Misclassification
Unbalanced Dist value
Incorrect Band set
What is the key step before creating ROIs to prevent data loss in SCP?
Creating the Training input file
Selecting the RGB band composite
Changing the file format
Adjusting the Dist value
What is the significance of calculating the spectral signature in SCP after saving an ROI?
It improves the image resolution
It allows accurate classification of land cover
It changes the coordinate system
It applies color correction to the image
Which plugin is installed for accessing the OpenStreetMap (OSM) standard in QGIS for flood vulnerability analysis?
QGIS2threejs
SCP
QMS (Quick Map Service)
SAGA
What type of projection should your project be set to before starting the flood vulnerability analysis?
Geographic Coordinate System (GCS)
Projected Coordinate System (PCS)
Universal Transverse Mercator (UTM)
Web Mercator
After loading the SRTM DEM, which option in the layer properties allows you to classify elevation values using a color ramp?
Single Band Grayscale
Single Band Pseudo Colour
Multiband Color
Hillshade
What expression is used in the Raster Calculator to identify flood-prone areas below 1 meter of elevation?
"DEM" > 5
"DEM" < 1
"DEM" = 0
"DEM" + 1
Which transparency setting allows you to visualize underlying layers after classifying flood-prone areas?
Additional no data value = 0
Adjust contrast enhancement
Color blend mode
Layer opacity 50%
In the Quick OSM plugin, which key-value pair is used to extract buildings in a specific area?
Key: Landuse; Value: Urban
Key: Water; Value: Yes
Key: Building; Value: Yes
Key: Elevation; Value: Low
What is the final step to convert the classified raster flood map into a vector layer?
Vectorize
Clip
Polygonise
Merge
Which filter value should you apply to delete non-flooded areas from the polygonized flood layer?
1
0
2
-1
In QGIS2threejs, which DEM-related property is adjusted to visualize terrain in 3D with exaggerated vertical height?
Building height
Vertical exaggeration
Horizontal scaling
Resolution
What determines the flood height in the 3D visualization created using QGIS2threejs?
Z-coordinates
DN (Digital Number) values
Color ramp values
Elevation ranges
Which menu should you access to open the print canvas in QGIS?
Layer
File
Raster
Vector
What is the main purpose of the Manage Layers Bar in QGIS?
Zoom in and out of the map
Add shapefiles and raster layers
Access layer settings
Open the attribute table
How do you add a shapefile to QGIS from your local machine?
Layer → Add Raster Layer
Layer → Add Vector Layer
File → Open Shapefile
File → Import Shapefile
When importing a raster file, which menu option is used to add the layer?
Layer → Add Raster Layer
File → Import Raster
Raster → Add Layer
Layer → Add Vector Layer
When importing a CSV file into QGIS, what geometry definition should you choose if the file contains x, y coordinates?
No Geometry
Latitude/Longitude Geometry
Point Coordinates
UTM Geometry
What CRS should be used for unprojected latitude/longitude coordinates in QGIS?
EPSG:3857 (Web Mercator)
EPSG:32646 (UTM 46N)
EPSG:4326 (WGS 84)
EPSG:900913
Which symbology option is used for data broken into categories, such as hair color or political party?
Graduated
Quantile
Equal Interval
Categorized
When symbolizing numerical data, what symbology option should you choose in the layer properties?
Single Symbol
Categorized
Graduated
Rule-Based
What is the correct sequence to symbolize data using the Style tab in layer properties?
Right-click layer → Open Attribute Table → Style tab
Double-click layer → Properties → Style tab
Layer → Add Style → Select Properties
File → Open Style → Categorize
Which button in QGIS allows you to classify different categories for visualization after selecting categorized data in the Style tab?
Generate
Populate
Classify
Visualize
How is a globe more accurate than a map?
a globe is a 3 dimensional model of the Earth, but a map is flat
a globe can show streets and roads, but a map cannot
a globe can show all of the continents at once, but a map cannot
a globe can be used to navigate from one town to another, but a map cannot
Which of the following is not a hardware component of GIS?
A computer screen
GPS coordinates
A plotter
A scanner
By ‘spatial data’ we mean data that has:
Complex values
Location/coordinate values
Graphic values
Decimal values
Which of the following is used to extract features and their attributes from one layer using a polygon from another as the boundary of the output?
Join
Merge
Union
Clip
What is ‘Attribute data’?
Specifies characteristics at that location, natural or human-created
Can be stored in a database table
Both A and B
None of the above
Numerous employees in your organization need access to the streets data that your team is responsible for maintaining in an enterprise database. From the options given below, what is the best way to handle access to these data? (Choose the best response)
Set the streets layer’s permissions to allow everyone in your enterprise full control
Set the streets layer’s permission to allow full control only to your team
Set the streets layer’s permission to allow full control only to your team and read-only access to the remainder of your enterprise
No action needed
The _______ tool extracts lines of constant value (isolines) from a raster surface
Contours
TIN
DTM
DSM
