Examination and Study Questions for Map Projections and Coordinate Systems

  1. Essay Questions
  2. Short Answer
  3. Multiple-choice

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1. Essay Questions

Limit each essay to two double-spaced typewritten pages plus references.

  1. What special problems arise from attempts to create a seamless or continous digital map from conventional map sources?

  2. In what ways does the long and widespread use of SPC, UTM, COGO, and USPLS reference systems limit the possibility of building regional and state-wide GIS?
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2. Short Answer

Limit your answers to no more than 100 words.

  1. List three ways in which scale can be indicated on a map. Give examples.

  2. Township and range surveying was used in Texas, but the surveys are unaligned with USPLS meridians. Why?

  3. What is metes and bounds surveying and how is it used to measure and record land records?

  4. In preparing map projections, what is the difference between the terms "case" and "aspect?"

  5. The US Public Land Survey is a method of cadastral partitioning. How has it influenced the appearance of the American landscape and why?

  6. What is the rationale behind both the State Plane Coordinate and Universal Transverse Mercator coordinate systems?

  7. From the standpoint of locational reference systems (SPC and UTM) and methods of cadastral partitioning (USPLS, metes and bounds, etc.), why is Texas such an unusual state?

  8. What four sorts of distortion may be produced when geographic positions are projected onto two-dimensional maps? Which of these factors does a UTM projection retain?

  9. Describe the Township and Range land surveying system. Use a diagram.

  10. What is a false origin? In practice, why are they always placed outside of the map zone being used?

  11. How is land surveyed in the metes and bounds system? Use a diagram.

  12. You have two maps of the University of Texas campus, one of 1:1000 scale and the other of 1:200,000 scale. Which is the larger scale map? Which map would be more useful for planning bicycle routes on campus?

  13. What four types of information can be distorted by map projection?

  14. Which land surveying system uses principal meridians and baselines?

  15. On any projected map, where is the map the most accurate? Why?

  16. In a state of Texas's size, why can't SPC or UTM coordinates be used for mapping and GIS projects that span the entire state?

  17. Why are conformal projections preferred for most GIS applications?

  18. Why was the State Plane Coordinate System such an important advance for mapping in the US?

  19. How have different land surveying systems affected the cultural landscape of Texas?
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3. Multiple-choice questions

Choose the best or most appropriate answer(s) to the question.

  1. An automated multi-purpose cadastre can be used to:

    1. maintain county tax records
    2. produce zoning maps
    3. dispatch ambulances
    4. plan new subdivisions
    5. allocate municipal resources
    6. prepare architectural plans for government buildings

  2. Which of the following statements are true of both SPC and UTM coordinate systems?

    1. both SPC and UTM are for mapping in the US
    2. both SPC and UTM employ conformal, equidistant projections
    3. within the US both systems yield horizontal coordinates of equal precision
    4. UTM zones correspond to state boundaries, whereas SPC zone are aligned with county boundaries

  3. Which system incorporate a false origin to measure position within a Cartesian grid?

    1. metes and bounds
    2. State Plane Coordinate System (SPC)
    3. Universal Transverse Mercator (UTM)
    4. Township and Range
    5. long lots

  4. Which of the following are true about the SPC?

    1. accuracy is 1 part in 10000
    2. the system is best used in regional and statewide GIS projects
    3. city governments resist using the SPC because of cost
    4. both A and B
    5. none of the above

  5. Which of the following land surveying systems were employed in the State of Texas?

    1. metes and bounds
    2. township and range
    3. Spanish riparian systems
    4. UTM zones
    5. SPC zones
    6. all of the above
    7. 1, 2, 3
    8. None of the above
    9. 4, 5

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Created on 22 Dec 95. Revised on 5 February 2000. LNC