WorksheetsUnit 1 CIS158 Review
Total questions: 80
Worksheet time: 41mins
Numerous types of geospatial datasets can be downloaded using the resources at...
The National Map
Emergency Preparedness Online
National Geospatial Program
Geospatial Unlimited Servers
What do Foursquare, Swarm, Tinder, Yelp, and other popular apps rely on to know the position of the user?
Google Earth Pro
crowdsourcing
GLOBE
geolocation
The concept of individuals contributing spatial data and knowledge to a database best describes ...
wiki spatial data
volunteered geographic information
geo-sponsored information
open geospatial consortiums
Computer-based mapping and analysis of location-based data best describes...
global positioning system
remote sensing
aerial photography
geographic information systems
Environmental conditions for the planet Earth can be monitored by which of these?
tabular databases
global positioning systems
global satellite program
remote sensing
Which job field uses geospatial technology for national security and defense applications?
geospatial intelligence
health and human services
environmental monitoring
city planning
A KML or KMZ file contains user-created content for use in...
Google Earth
View Ranger
Yelp
OpenStreetMap
Which of these is NOT an example of VGI?
updating an online road map with information about a closed road
geotagging a photo and adding it to Google Earth
adding information about the location of dead birds to a Centers for Disease Control and Prevention online map
obtaining a satellite image provided from a commercial provider
Google Earth is an example of a...
virtual globe
GPS
social map
satellite map
In what format must user content be in order to work with it in Google Earth?
W3C or Geotag
VGI or Wiki
API or AML
KML or KMZ
Which of these apps allows users to look at maps and information about homes for sale?
Zillow
3D Geo Globe
ViewRanger
Foursquare City Guide
In addition to a single snapshot in time of an area, Google Earth Pro also provides the ability to...
view past imagery
edit and update imagery
download imagery
increase imagery resolution
Imagery that you can see in Google Earth...
represents the current satellite image from when you start Google Earth
represents one "snapshot" in time from when the image was acquired
is not updated; you must use the Keyhole Viewer program to see current imagery
is updated using a live link to a Google satellite in orbit around the Earth
Acquiring real-time location information from a series of satellites in orbit best describes...
satellite imagery
remote sensing
geographic information systems
global positioning systems
What online application do volunteers all over the world frequently use to map area that have suffered a humanitarian crisis?
The National Map
GLOBE
OpenStreetMap
An example of a homeland security application of geospatial technology is...
monitoring the movement of military equipment
determining places vulnerable to flooding
tracking the source of a deadly disease
analyzing crime patterns in a region
A set of commands and techniques used by programmers to obtain the location information of your phone or computer is...
W3C Geolocation API
Geotag API
Google API
Location Science API
Which of these is an example of how geospatial technology might be perceived as an invasion of personal privacy?
using GPS to monitor locations of migrating animals
using an online GIS or mapping website to locate a residential address
using Google Earth to view satellite imagery of the entire Earth
using the National Map to download the hydrography of a selected watershed
What makes geospatial data unique?
It is connected to a real-world location
It does not contain any location information
It contains a unique name for every potential location
It contains a unique name for every location
Which of these is NOT an example of geospatial data?
the size and shape of the continent of North America
the measurement made between two road intersections
the length of a piece of wood
the dimensions of a lake
What marks the difference between north and south latitude?
compass rose line
equator
international date line
prime meridian
What is the only accurate representation of the world?
a cylindrical surface
a globe
a projection
a rectangular grid system
Which of these map projections is best suited for east-west trending areas like the continental United States?
Azimuthal Equidistant projection
Lambert Conformal Conic projection
Mercator projection
Transverse Mercator projection
A dataset of roads and a dataset of parcel boundaries of the same area do not line up. What is the most likely reason for this offset?
One dataset was crowdsourced and the other was not
One dataset is a KML file and the other is a KMZ file
The datasets are based on two different datums
The datasets are used by different industries
Why are the SPCS baselines and principal meridians positioned differently in some states?
Some states cover a greater geographic extent than other states
Some states are more densely populated than other states
Some states are oriented north-south and others are oriented east-west
Some states have extensive ocean coastlines
What does the location of the line or lines of tangency indicate about a map projection?
where all measurements are accurate
where all properties are preserved
where distortion is at its least
where great circle routes can be calculated
What projections does the SPCS use?
Azimuthal Equidistant projection
Lambert Conformal Conic projection
Mercator projection
Transverse Mercator projection
A model of the Earth based on mean sea level is a(n)...
geoid
great circle
ellipsoid
spheroid
Why is it important to determine whether the NAD27 or NAD83 version of the SPCS is used to map an area?
There may be a different number of zones used
There may be different projections used for each zone
There may be different values for each zone's origin
There may be different zone designations for each state
The UTM system is the basis for the United States National Grid, which is also known as the ...
Federal Emergency Management Areas
Geographic Coordinate System Grid
Military Grid Reference System
State Plane Coordinate System
Which of these is equal to 2.5 decimal degrees of latitude?
2 degrees, 5 minutes, 0 seconds of latitude
2 degrees, 30 minutes, 0 seconds of latitude
2 minutes, 5 seconds of latitude
250 minutes, 0 seconds of latitude
What pieces of information are required to locate a position using the UTM and SPCS systems?
the easting
the northing
the projection
the zone
What marks the change between east and west longitude?
antimeridian
equator
international date line
prime meridian
What is the value given to each UTM zone's central meridian?
500,000 feet
500,000 meters
10,000,000 feet
10,000,000 meters
What is an unavoidable consequence of translating a 3D object to a 2D surface?
classification
distortion
generalization
selection
A datum represents...
a reference surface used in computing coordinates
a zero point form which to calculate elevations
the curvature of the Earth used in computing latitude and longitude
the origin point for longitude measurements
A map projection is a...
model of the Earth based on the size and shape of objects on the Earth's surface
representation of how time zones are distributed with respect to geographic boundaries
system used in translating decimal degrees to other forms of measurement
translation of locations on the Earth's surface to their corresponding locations on a flat surface
One minute of latitude is equivalent to ...
1 degree of longitude
60 degrees of latitude
60 meters
60 seconds of latitude
What is the extent of the UTM grid system?
80° N to 90° S
84° N to 80° S
84° N to 84° S
90° N to 90° S
Latitude and longitude are used as the measurement system for which of these?
GCS
SPCS
USNG
UTM
A detailed map of a state park is downloaded as a PDF but won't ine up with the existing spatially referenced data. Why not?
It has not been georeferenced yet
PDF is not a standard file format
The zone designation is missing
The coordinate values are reversed.
A county planner is trying to add a scanned historical map in a GIS. Why doesn't it line up with the existing road network and parcel layers?
The map was skewed during the scanning process
The scanned map was "projected on the fly"
The scanned map did not have a spatial reference
There were no coordinates on the scanned map
Why might a city engineer be unable to reproject a scanned map of an old water distribution network?
The scanned map cannot be reprojected without a spatial reference
The map was already reprojected during the scanning process
The scanned map does not have any good control points
The scanned map was based on an older datum
When might a spatial dataset need to be reprojected?
If it does not align with existing layers of spatial data
If there are no control points in the dataset
If the dataset covers a large geographic extent
If it does not have a spatial reference
The MapTiler app can align any type of unreferenced map or image that...
has a RMSE
is drawn to scale
has been reprojected
uses real-world coordinates
Which transformation alters one geospatial dataset to align it with another?
spatial
control
affine
geographic
What is computed as part of the transformation process to indicate how well the newly referenced data aligns with the source data?
root mean square error
affine error index
skewness error
transformation error metric
A high RSME value generally indicates that the transformation of the unreferenced dataset to the spatially referenced data is...
statistically insignificant
statistically significant
accurate
inaccurate
The David Rumsey Historical Map Collection is available as a layer in...
The National Map
Zillow
Wikimapia
Google Earth Pro
Which one of these is a good source for viewing georeferenced historic maps online?
Google Map Maker
Geomapia
David Rumsey Map Collection
United States National Archive
Which one of these best describes what the free MapTiler app does?
temporarily aligns images with different coordinates
selects the most appropriate datum for an area
reprojects images to new spatial references
georeferences a graphic or PDF map of an area
Although two spatial datasets may be in different datums, many GIS packages will display both without having to reproject the data. This is known as...
automatic rotation
blind translation
air transformation
projecting on the fly
Control points are best described as...
points on the map that do not have a spatial reference
common locations used to align different datasets
area on the map where the projection can easily change
points on the map that share the same datum
Which one of these would be the best location for a control point?
a location on a shoreline at low tide
a location on a riverbank
a car on the roof of a parking garage
the corner of a building
Calculating new locations and new pixel values for an image is...
translating
geotagging
resampling
scaling
Which one of these unreferenced datasets is resampled as a part of the georeferencing process?
soil type polygons
a network of sewer lines
utility pole points
a scanned aerial photograph
Before making measurements from a geospatial dataset, what must be checked?
if the dataset has control points
whether the dataset was resampled
the dataset's datum and projection
what the dataset's RMSE is
Of the following, which would be the least desirable location for a control point?
a road intersection
a cleared area in a construction zone
the location where a driveway meets a street
where two streams intersect
What does "project on the fly" mean?
reprojecting a dataset without altering the original dataset
skewing, scaling, and translating an image
assigning a spatial reference to a non-spatial dataset
identifying the control points needed for georeferencing
If a scanned 1933 aerial photograph of a rural area in western New York has been "rectified," it has been...
analyzed for permanent control point locations
edited to account for changes to the North American Datum
transformed to math up with an existing spatial dataset
geotagged to align with a world coordinate system
What type of error occurs when a satellite is out of position?
multipath
ephemeris
ionospheric
selective availabilty
The overall term for the technologies that use signals from satellites to find locations on Earth's surface is...
NAVSTAR 3D
GNSS
GPS
3D TriLat
Using WAAS can reduce the positional error to within...
3 meters
10 meters
5 meters
1 meter
GPS is part of the larger constellation of satellites known as...
EGNOS
PDOP
SBAS
GNSS
Why did the United States use selective availability?
to relay signals to Coast Guard beacons for better accuracy
to create dead zones where GPS would not function
to intentionally introduce errors or timing and position
to minimize atmospheric interference with signal speed
Of the following choices, what is necessary to receive a GPS satellite signal?
a protected indoor location
a dual frequency GPS receiver
a Y code enabled GPS receiver
a direct line of sight to satellites
Who has access to the P code?
military personnel
civilians
municipal governments
businesses
What type of GPS receiver can access the military P code?
dual frequency
channelized frequency
single frequency
linear feedback frequency
The European Union's version of GPS is...
GLONASS
EGNOS
Galileo
Newton
How is a person's unknown location determined using the locations of three known points?
by calculating the ephemeris
by using the 2D trilateration process
by determining the pseudorange
by implementing 3D equilateration
What was a drawback of the Transit satellite navigation system?
It was limited to tracking vessels in U.S. territorial waters
It required locations be transmitted to land-based receivers.
It provided only accurate clock timing information
It did not provide continuous location information
What component of GPS includes the series of ground stations that help maintain GPS?
range segment
control segment
space segment
user segment
The use of a base station or other earth-bound source to transmit a correction signal to a GPS receiver is known as...
PDOP
DGPS
C/A
SA
What is the official name of the U.S. global positioning system?
USAF GPS
NASA GPS
LANDSAT GPS
NAVSTAR GPS
What is China's equivalent of GPS?
WeiXing
COMPASS
QZSS
Eisei
How much can a position be off due to ephemeris errors?
about 10 meters
about 3 centimeters
about 2 meters
about 5 millimeters
Of the following, what methods can be used to improve the accuracy of GPS positional measurements?
DGPS
GPX
FAA
CORS
How was the satellite navigation system called Transit used in the late 1960s?
to determine locations from orbit using accurate clocks
to determine locations of seagoing vessels
to track domestic oil tankers in foreign territorial waters
to track foreign naval ships in U.S. territorial waters
What is the encrypted version of the P code?
Y code
SA code
L code
C/A code
Which of these is designed to operate in Japan?
Eisei
BeiDou-2
QZSS
IRNSS
