Geospatial Technologies
Practice Questions
Course Introduction
Geospatial Technologies covers the principles and applications of geographic information systems (GIS), remote sensing, global positioning systems (GPS), and related tools used to collect, analyze, and visualize spatial data. Students learn how to use these technologies to solve real-world problems across diverse fields such as urban planning, environmental management, disaster response, and transportation. The course provides hands-on experience with industry-standard software and introduces methods for data collection, mapping, spatial analysis, and interpretation, preparing students to effectively leverage geospatial tools in interdisciplinary contexts.
Recommended Textbook
Introduction to Geospatial Technologies 1st Edition by Bradley Shellito
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228 Verified Questions
228 Flashcards
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Chapter 1: Its A Geospatial World Out There
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Sample Questions
Q1) Describe three applications of geospatial technology in the private sector.
Answer: There are numerous answers to this question,as geospatial technologies are used in a wide variety of settings.From information presented in the chapter,geospatial technologies can be used for the following three examples;1)mapping the locations of homes for sale so that users can spatially compare home values and selling prices; 2)determining the best new site for a new restaurant or retail business; and 3)tracking the location of new housing developments over time.
Q2) Google Earth is an example of a A)social map.
B)satellite map.
C)virtual globe.
D)GPS.
Answer: C
Q3) What makes geospatial data unique?
A)It does not contain any location information.
B)It contains descriptive information for all locations.
C)It contains a unique name for every potential location.
D)It is connected to a real-world location.
Answer: D
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Page 3
Chapter
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Sample Questions
Q1) The 180th meridian refers to the A)compass rose line.
B)equator.
C)prime meridian.
D)international date line.
Answer: D
Q2) A datum represents
A)a reference surface used in computing coordinates.
B)a zero point from which to calculate elevations.
C)the origin point for longitude measurements.
D)the curvature of the Earth,used in computing latitude and longitude.
Answer: A
Q3) What is used to ensure that UTM measurements of the southern hemisphere have a positive value?
A)A false northing value
B)A false easting value
C)A false southing value
D)A false polar value
Answer: A
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Chapter 3: Getting Your Data to Match the Map
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Sample Questions
Q1) Why would georeferencing be with real-world data (and give an example of this)?
Answer: Georeferencing can be used to take datasets that do not have spatial reference and apply this spatial reference to them by aligning the data with referenced datasets.If data does not have a spatial reference (such as a set of plans or a hand-drawn scale diagram),it cannot be used in conjunction with other data layers in other forms of geospatial technology (for instance,it will not match with other data in a GIS,or will not properly align with a remotely sensed image).An example of this would be to take historic maps of an area and georeference them with current maps to see how areas have altered or changed over time.
Q2) Which of the following indicates the best transformation of the data has taken place?
A)A negative value for RMSE
B)The lowest possible value for RMSE
C)The highest possible value for RMSE
D)An RMSE value of exactly (or as close as possible)to 1
Answer: B
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Chapter 4: Finding Your Location With the Global Positioning System
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Sample Questions
Q1) The Russian equivalent of GPS is
A)Comrade.
B)Glonass.
C)Rodina.
D)Compass.
Q2) Which of the following systems is designed to operate in Japan?
A)Gagan
B)Beidou
C)IRNSS
D)QZSS
Q3) Explain why a minimum of three satellites is necessary to determine a receiver's position using GPS.Also,describe why a fourth satellite is used in position determination.
Q4) When the GPS signals bounce off objects to arrive later than anticipated,which of the following types of errors is occurring?
A)Almanac
B)PDOP
C)Multipath
D)Tropospheric
Page 6
Q5) Describe the basic operation of an SBAS in increasing the accuracy of GPS.
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Chapter 5: Working With Digital Spatial Data and GIS
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Sample Questions
Q1) When modeling the world in GIS,when all features are treated as objects with definite locations and boundaries,what is being described?
A)Continuous field view of the world
B)Discrete object view of the world
C)Ellipsoid component view of the world
D)Geographic view of the world
Q2) In the vector data model,all items are represented as
A)equally spaced and sized grid cells.
B)points,lines,and polygons.
C)directional lines.
D)digitizing sketches.
Q3) Metadata refers to
A)descriptive information about the data.
B)data automatically created by the GIS during the digitizing process.
C)the "meta" or "control" points used in digitizing.
D)data manually imported into the GIS.
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Chapter
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Sample Questions
Q1) Which of the following boolean operators would be used to determine which parcels of land in a database have an assessed value of more than $100,000 and are also zoned as "residential" areas,but not parcels that meet both of these criteria?
A)Negation
B)Intersection
C)Exclusive Or
D)Union
Q2) Which geoprocessing operation will select all areas from the first dataset and all areas from the second dataset,except those areas they have in common?
A)Symmetrical difference
B)Identity
C)Union
D)Intersect
Q3) An area of spatial proximity around a point refers to which GIS operation?
A)Spatial join
B)Buffer
C)Closed circle
D)Union
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8
Chapter 7: Using GIS to Make a Map
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Sample Questions
Q1) Which of the following data classification methods attempts to place an equal number of data values in each class?
A)Quantiles
B)Standard deviation
C)Equal interval
D)Natural breaks
Q2) Which of the following data formats will result in the least loss of data of a map graphic?
A)TIFF
B)JPEG
C)DPI
D)CMYK
Q3) A small-scale map would show
A)a larger geographic area than a large-scale map.
B)a smaller geographic area than a large-scale map.
C)the same geographic area as a large-scale map,just at a smaller resolution.
D)the same geographic area as a large-scale map,just at a larger resolution.
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Chapter 8: Getting There Quicker With Geospatial Technology
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Sample Questions
Q1) What are two ways of finding a shortest path between stops in a GIS?
Q2) Describe two reasons why an address may be geocoded in an incorrect location.
Q3) TIGER files typically contain all of the following data except
A)number of houses per street.
B)address ranges on streets.
C)zip code information for streets.
D)names of streets.
Q4) Linear interpolation is used in geocoding to
A)find the exact point where an address is matched to.
B)place a point an approximate distance along a line.
C)count the number of houses on the street.
D)separate the component parts of an address.
Q5) Address parsing is done to
A)separate the parts of an address.
B)make sure that all parts of an address have the same format.
C)remove incorrect addresses prior to geocoding.
D)align each address with a zip code.
Q6) Describe a real-world application of using geocoding in a business or service.
Page 10
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Chapter 9: Remotely Sensed Images From Above
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Q1) Photogrammetry describes
A)the method of changing an orthophoto to a non-ortho photo.
B)the process of obtaining measurements from an aerial photo.
C)the scale of an aerial photo.
D)the interpretation of items in an aerial photo.
Q2) The first aerial photograph was taken in
A)1826,from a kite.
B)1858,from a balloon.
C)1903,from the Wright Brothers glider.
D)1914,from a German plane in WWI.
Q3) The U-2 aircraft's remote sensing capabilities were especially proven during which of the following?
A)The San Francisco earthquake
B)World War I
C)World War II
D)The Cuban Missile Crisis
Q4) Explain how the height of a flagpole (falling on level terrain)can be calculated by measuring the length of its shadow in an aerial photo.
Q5) What is the difference between an orthophoto and a regular aerial photo?
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Chapter 10: How Remote Sensing Works
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Sample Questions
Q1) Placing the green band in the blue color gun,the red band in the green color gun,and the near-infrared band in the red color gun will create which type of composite image?
A)True color
B)Spectral color
C)False color
D)Standard false color
Q2) We see the sky as blue in the middle of the day because of A)nonselective scattering.
B)atmospheric transmittance.
C)Rayleigh scattering.
D)atmospheric absorption.
Q3) Our eyes are sensitive to viewing which wavelengths of light?
A)0.3\(\mu\)m-0.9\(\mu\)m
B)0.4\(\mu\)m-0.7\(\mu\)m
C)0.1\(\mu\)m-1.0\(\mu\)m
D)0.7\(\mu\)m-0.9\(\mu\)m
Q4) Describe the steps in the remote sensing process,starting with the sun as a source of energy and ending with the energy being received at a sensor (so it can be converted into an image).
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Chapter 11: Images From Space
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Sample Questions
Q1) Pan-sharpening is used to
A)sense multiple small bands simultaneously in the panchromatic portion of the EM spectrum.
B)fuse panchromatic imagery with multispectral imagery to get a finer image.
C)take the pixels of an existing image and transform them into finer resolution pixels.
D)narrow down the sensor's swath width and obtain finer spatial resolution for a sensor.
Q2) Which of the following satellites' panchromatic sensors has the coarsest spatial resolution sensor?
A)IKONOS
B)Quickbird
C)WorldView-1
D)WorldView-2
Q3) Landsat 7 carries which of the following sensors?
A)HRG
B)MSS
C)TM
D)ETM+
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Chapter 12: Studying the Environment From Space
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Q1) AMSR-E can be used for measuring many environmental conditions,including
A)health of ocean vegetation and ocean pollutant levels.
B)temperature of sea ice and color of the oceans.
C)active fires and volcanoes.
D)sea-surface temperature and amount of rainfall.
Q2) Which of the Aqua instruments are frequently used together as a sounding system?
A)CERES,MODIS,and AMSR-E
B)AMSU-A,HSB,and AIRS
C)AIRS,CERES,and AMSR-E
D)HSB,MODIS,and AMSU-A
Q3) The current version of the "A-Train" consists of
A)Aqua, Aura, Calipso, and Cloudsat.
B)Terra,Aqua,and Aura.
C)Aqua,Aura,Astra-1,Aurora,and Aquarius.
D)Terra,Landsat 7,EO-1,and SAC-C.
Q4) Which instrument measures pollution levels in the lower atmosphere?
A)MOPITT
B)ASTER
C)MISR
D)CERES
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Chapter 13: Digital Landscaping
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Sample Questions
Q1) A commonly used vertical datum is
A)the core of the Earth.
B)the north pole.
C)high tide.
D)mean sea level.
Q2) The accuracy of a LIDAR model of terrain is about
A)30 meters.
B)15 meters.
C)1 meter.
D)15 centimeters.
Q3) Small-scale maps would use
A)a wider contour interval than a large scale map.
B)a narrower contour interval than a large scale map.
C)the same contour interval as a large scale map.
D)no contour intervals due to the small scale of the map.
Q4) A 1:24000 scale topographic map will show how much geographic area?
A)7.5 minutes of latitude by 7.5 minutes of longitude
B)24,000 feet by 24,000 feet
C)15 miles by 15 miles
D)8000 meters by 8000 meters
Page 15
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Chapter 14: See the World in 3D
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Q1) KMZ files are the native file format used to work with 3D objects in A)Google SketchUp.
B)Google Earth.
C)ArcScene.
D)ArcGlobe.
Q2) Pre-made 3D objects in Google SketchUp refer to A)components.
B)prisms.
C)georeferences.
D)faces.
Q3) Which of the following operations would best allow you to place 3D buildings at their proper height on the terrain (e.g. ,the terrain is 900 ft above sea level,you want the building to sit on the terrain,not float above or below it)?
A)Extrusion
B)Offsetting
C)Applying base heights
D)Vertical exaggeration
Q4) Describe the steps involved with designing a 3D structure in Google SketchUp and then placing it into its correct location in Google Earth.
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Chapter 15: Whats Next for Geospatial Technology
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Q1) Describe the basics of how a GeoWall system enables the user to see images in stereoscopic 3D.
Q2) Viewing an image that is offset in both the color red and the color blue that enables a "3D" style effect is an example of
A)Anaglyph.
B)GeoWall.
C)Stereovision.
D)SOS.
Q3) GLOBE is a(n)
A)professional organization dedicated to satellite imaging.
B)free geospatial software program that allows real-time environmental tracking.
C)AmericaView program dedicated to studying global climate change.
D)NASA program with worldwide student participants that studies the Earth's environment.
Q4) Numerous types of geospatial datasets can be downloaded via the resources at A)the National Map.
B)SATELLITES.
C)SDTS.
D)Geospatial Unlimited Servers.
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