Introduction to GIS Practice Exam Questions PDF

Preview

Summary

Practice exam questions EV5505 2019 SP2...

Description

1.

Compare and contrast raster and vector data models suggesting an application that each data model would be best suited to

2.

What is a spectral index? Give an example of a commonly used index and describe how it is calculated. Discuss how it is used, and the information it provides.

3.

What is the difference between the accuracy and precision of data? Use diagrams to help illustrate your answer. Give an example relevant to spatial data collection.

4.

Match the following datasets with the most appropriate description of their spatial autocorrelation. a) Positive spatial correlation b) No spatial correlation c) Negative spatial correlation

5.

Which statistic could you compute to measure the spatial autocorrelation of a dataset in ArcGIS? Describe the output of the statistic and how it would be interpreted.

6.

The local Council wants you to determine if there is any spatial relationship between graffiti and the location of skate parks. They have given you 3 shapefiles: - Locations of graffiti (points) - Locations of skate parks (polygons) - Roads (lines) What spatial analyses would you perform to answer their question? Would you require any additional data?

7.

You have been given the following two polygon shapefile layers. Draw the output of the following operations and describe the content of the output layer’s attributes table. a. Intersect b. Merge c. Union

8.

Draw the output of an intersect operation performed on the three layers below (green polygon, black lines, red points). Comment on which layer’s properties will appear in the output layer’s attributes table.

9.

List the three most critical map elements. What are three other elements that are also important to include on a map?

10.

11.

What is a datum?

Which ArcGIS geoprocessing tool(s) would you use in the following situations a. You are given a large shapefile with 1 m contour lines for the entire state of Queensland but your study area is the inner suburb of Townsville. You want to reduce the contour file to the only the area of interest to you.

b. You are given two shapefiles of point data collected in neighbouring suburbs. Both shapefiles are in the same co-ordinate system and you want to combine them into one shapefile to perform analysis.

c. You have a shapefile of points and a shapefile of road lines. You want to create a new shapefile containing only points that are within 200 m of a road.

12.

Draw two examples of bad topology in vector data and explain how they would hinder spatial analysis.

13.

List three advantages that Geographic Information Systems have over traditional paper maps.

14.

Which geoprocessing tool has been used below? (1 mark)

15.

Describe a method for measuring spatial arrangement of points in GIS. Include the name of the method, a brief summary of how it works, a description of the output and how it would be interpreted.

16.

How is spatial resolution defined in raster and vector?

17.

Define the four dimensions of remotely sensed imagery and explain the tradeoffs between them.

18.

What features make good or not so good ground control points for georeferencing?

19.

What are the different ways in which light interacts with a surface?...