WorksheetsGIS Unit - 3 Scanners
Total questions: 15
Worksheet time: 8mins
Data Encoding means
process of getting from computer
process of moving data into the scanner
process of getting data into the computer
All the above
Problems in Data Encoding
re-projection of data
generalization of complex data
matching and joining of adjacent map sheets
All the above
Data Capture includes
Scanning
Digitizing
Data Transfer
All the above
Scanning coverts paper maps into
(a)
Scanning automatically captures
overlay
map features
sensors
All the above
Keyboard entry is no longer used in GIS projects.
True
False
The scanner is a heavy device that cannot be moved from one place to another.
True
False
The scanner cannot be used to renew and retouch old photographs digitally.
True
False
The scanner head contains
charged-couple device
couple charged device
Contact lens sensor
All the above
flatbed scanner is also known as
Handheld scanner
Light weight scanner
Desktop scanner
Portable scanner
How the raster data are made of
Images
Maps
Grid cells
None of the above
Digitizing in GIS is the process of converting geographic data either from a hardcopy or a scanned image into
Simple image
Raster data
vector data
Complex data
How many stages are followed when digitizing a paper map
3
5
7
4
Manual digitizers may be used in
Line mode
Area mode
Square mode
Either point or stream mode
Is adding attribute data in digitized data is possible?
True
False
Need Conversion
