Test your basic knowledge |

GIS: Geographic Information Systems

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The 5 __________: TTCETH - 1. Triangle table 2. Triangle-Node table 3. Coordinate table 4. Triangle-Edge table 5. Hull-Edge table.






2. The ability to link files together.






3. Title - legend or key - grid system - distance scale - direction and compass rose






4. The 4 types of ___________:SADD. 1. S - Shape: Conformal. 2. A - Area: Variant. 3. D - Direction: Preserved. 4. D - Distance: Variant.






5. Preserve Shape






6. Accuracy - reliability - responsibility.






7. 2 ______: 1. Files/records. 2. Database/collection of files.






8. Triangulated Irregular Network.






9. Preserve Direction






10. Real Things (trees - forests - cities etc).






11. Connectivity: ___________. 3 elements 1. Nodes & vertices define the shape of the arc. 2. Arcs have a from-node (or starting node) & a to-node (or ending-node). 3. Arcs only join at nodes.






12. GIS is not a ______






13. Consists of F & E: 1. Features. 2. Entities.






14. A tabular file containing rows and columns; descriptive attributes about some object such as a geographic feature are contained in each row






15. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






16. The acquisition of data about Earth's surface from a satellite orbiting the planet or other long-distance methods.






17. To avoid corrupt data!






18. HAL - H-Human nature. A-Arbitrary/socially constructed. L-Loss of info (hiding variance within a class or group).






19. A map containing information on only one topic or theme.






20. Points - Polygons - Lines






21. Uses coordinates (X -Y) to represent spatial features. Scale matters involve what Polygons<>points. Polygons<>lines.






22. When parallels & meridians intersect at right angles.






23. 2 common _______: 1. Vector. 2. Raster.






24. Townships were six miles square - and were subdivided into 36 sections - each section consisting of one square mile. One section of each township was set aside to support public education - and the remaining sections were to be sold at public auction






25. Where 2 lines/arcs intersect - an endpoint - or a point along a line.






26. The reverse of each other.






27. Symbol on a map used to show direction






28. Geographic Coordinate System.






29. Description by name: ex London






30. Defined by NOIR NOIR N-Nominal - qualitive data. O-Ordinal - order or ranking. I-Interval - numeric scale - arbitrary units. R - Ratio - fixed origin - continuous scale.






31. Understand spatial relations between landmarks>shortcuts.






32. A 3-D frame of reference (model of the earth) used to determine surface locations.






33. A data classification method that divides a set of attribute values into groups that contain an equal range of values






34. GIS is ________






35. Representative fraction






36. Precision of a measurement with respect to time






37. Assigning location information to text & discourse.






38. Blue - Green - Red - NIR....






39. The 2 _____ in data modelling: 1. Database. 2. Data Storage.






40. Area of the Earth that is displayed in each image






41. Arcs only ___ at Nodes






42. 3 topological concepts: 1. Connectivity - arcs connect to each other at nodes. 2._______ - arcs that connect to surround an area define a polygon. 3. Contiguity - arcs have direction & left & right sides.






43. LN 1. L - Level Surfaces. 2. N - NAVD88.






44. DBMS used for: _______ - access - organize & edit.






45. Smoothing & Shape abstraction.






46. Identify unique points - patterns or features in space.






47. Global Positioning System.






48. Lines that connect points of equal value.






49. Contour lines never _______






50. An assignment of geographic coordinates to locations.