NR 322 Exam 1 Questions and Answers 2025
what is GIS? -Correct Answers ✔-abstraction of real world
vector -Correct Answers ✔-series of x, y, and z coordinates that form points, lines,
and polygons
raster -Correct Answers ✔-grid of cells that represent continuous or discrete data
weaknesses of GIS -Correct Answers ✔--expensive to create databases
-errors can magnify
-representing time is hard
why use GIS? -Correct Answers ✔--store large amounts of data
-maintain consistency
-use seamless spatial data
-use diverse types of data
scale -Correct Answers ✔-reduction in size of features to represent on maps
is 1:5,000,000 or 1:250,000 a smaller scale? -Correct Answers ✔-1:5,000,000
questions to ask before making a map -Correct Answers ✔--why?
-who is going to use map?
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-what are some issues map will address?
-how can map be used in short and long term?
-what is most important purpose of map?
participatory community mapping -Correct Answers ✔-working with community
to help position info in space for areas of interest
types of contact with community for participatory community mapping -Correct
Answers ✔-1. no interaction
2. researcher has answer and delivers at end
3. initial consultation but no follow up
4. communities and researchers consult initially and deliver end result together
5. frequent interactions
geodesy -Correct Answers ✔-study of measuring shape of earth
latitude -Correct Answers ✔-+N/-S
longitude -Correct Answers ✔--W/+E
prime meridian -Correct Answers ✔-0, 180, -180
why don't we measure distances using geographic coordinates? -Correct Answers
✔-measurement would be biased due to distortion
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