GEOG 1113L LAB 7 EXAM PREPARATION
TEST BANK WITH CORRECT ANSWERS
●● Assuming a contour interval of 50 feet, what is the elevation of the
centermost contour line in this figure? Please observe that the first
contour line has an elevation of 100 feet above sea level.
Answer: 300 feet
●● Use the Public Land Survey System to locate the X out to three
quarters. Assume that it is located in Township 1N and Range 3E.
Answer: NE 1/4, NE 1/4, NW 1/4, Sec. 32, T1N, R3E
●● What information do contour lines provide?
Answer: elevation above sea level
●● Using the topographic map in the figure, follow along line X-X' and
determine what the topographic profile would look like. Choose the
appropriate profile below.
Answer: Answer: B
●● On this map, what is the change in elevation between two adjacent
index contour lines? (Answer to the nearest foot.)
Answer: 200 feet
,●● What is the change in elevation across each contour interval (i.e.,
between successive "regular" contours) on this map?
Answer: 40 feet
●● Which of the following statements best describes the topography
around placemark A and the resulting appearance of the spacing of the
contour lines on the map?
Answer: The land surface is relatively flat, and the contours are widely
spaced.
●● In which direction do the Vs formed by the contour lines point as a
stream crosses them?
Answer: Upstream
●● What are the elevations of placemarks G and H respectively?
Answer: 5540 feet; 5930 feet, respectively
●● Using the change in elevation from Part D, calculate the straight-line
gradient between placemarks G and H. Calculating the slope here is
exactly the same as in geometry, divide rise over run.
Answer: 0.795
,●● Which answer most correctly describes the landform at placemark I
and the appearance of the contour lines in the area?
Answer: The landform is a ridge, and the contour lines form Vs that
point downslope.
●● Which answer most correctly describes the landform at placemark J
and the appearance of the contour lines in the area?
Answer: The landform is a flat-topped hill, or peak, called a butte. The
contour lines form concentric closed loops around the high point.
●● Which was updated more recently, the topographic map or the
satellite imagery? How can you tell?
Answer: The satellite imagery was updated more recently. This is
evidenced by roads and buildings that appear in the satellite imagery but
not on the topographic map.
●● The latitude-longitude coordinate system provides reference lines
from which to measure the location of a point on Earth's surface. For
example, Point A is located at 20° north latitude and 120° west
longitude.
Now determine the latitude and longitude of Point B.
Answer: 40 degrees south; 20 degrees west
●● A common size of U.S. Geological Survey map is a 15-minute
quadrangle map, which measures 15 minutes of latitude by 15 minutes
, of longitude. Below you will use the latitude and longitude of one corner
of a 15-minute quadrangle map to determine the latitude and longitude
of another corner.
Point B is located at 40° south latitude and 20° west longitude.
Assuming that Point B is at the northwest corner of a 15-minute
quadrangle map, what is the latitude and longitude of the southeast
corner of the map?
Answer: 40 degrees 15' south latitude, 19 degrees 45' west longitude
●● Launch Google Earth™ by clicking on this link to locate the Starved
Rock Lodge at Starved Rock State Park, Illinois. If you do not have
Google Earth installed, download it at
http:/www.google.com/earth/index.html and install it on your computer
before you begin.
In the Layers Panel on the lower right, make sure the Borders and Labels
and Places boxes are checked.
Using Placemark A, which of the following is the best estimate of the
latitude and longitude of the park in degrees, minutes and seconds?
Answer: 41 degrees 18' 20 N, 88 degrees 58' 29 W
●● What is the elevation of the Starved Rock State Park, Illinois? Use
Placemark A as reference point. If your elevation in Google Earth™ is
any unit besides feet, go to "Tools" > "Options" and change the "Unit of
Measurement" unit to "Feet, Miles".
Answer: 635 feet
TEST BANK WITH CORRECT ANSWERS
●● Assuming a contour interval of 50 feet, what is the elevation of the
centermost contour line in this figure? Please observe that the first
contour line has an elevation of 100 feet above sea level.
Answer: 300 feet
●● Use the Public Land Survey System to locate the X out to three
quarters. Assume that it is located in Township 1N and Range 3E.
Answer: NE 1/4, NE 1/4, NW 1/4, Sec. 32, T1N, R3E
●● What information do contour lines provide?
Answer: elevation above sea level
●● Using the topographic map in the figure, follow along line X-X' and
determine what the topographic profile would look like. Choose the
appropriate profile below.
Answer: Answer: B
●● On this map, what is the change in elevation between two adjacent
index contour lines? (Answer to the nearest foot.)
Answer: 200 feet
,●● What is the change in elevation across each contour interval (i.e.,
between successive "regular" contours) on this map?
Answer: 40 feet
●● Which of the following statements best describes the topography
around placemark A and the resulting appearance of the spacing of the
contour lines on the map?
Answer: The land surface is relatively flat, and the contours are widely
spaced.
●● In which direction do the Vs formed by the contour lines point as a
stream crosses them?
Answer: Upstream
●● What are the elevations of placemarks G and H respectively?
Answer: 5540 feet; 5930 feet, respectively
●● Using the change in elevation from Part D, calculate the straight-line
gradient between placemarks G and H. Calculating the slope here is
exactly the same as in geometry, divide rise over run.
Answer: 0.795
,●● Which answer most correctly describes the landform at placemark I
and the appearance of the contour lines in the area?
Answer: The landform is a ridge, and the contour lines form Vs that
point downslope.
●● Which answer most correctly describes the landform at placemark J
and the appearance of the contour lines in the area?
Answer: The landform is a flat-topped hill, or peak, called a butte. The
contour lines form concentric closed loops around the high point.
●● Which was updated more recently, the topographic map or the
satellite imagery? How can you tell?
Answer: The satellite imagery was updated more recently. This is
evidenced by roads and buildings that appear in the satellite imagery but
not on the topographic map.
●● The latitude-longitude coordinate system provides reference lines
from which to measure the location of a point on Earth's surface. For
example, Point A is located at 20° north latitude and 120° west
longitude.
Now determine the latitude and longitude of Point B.
Answer: 40 degrees south; 20 degrees west
●● A common size of U.S. Geological Survey map is a 15-minute
quadrangle map, which measures 15 minutes of latitude by 15 minutes
, of longitude. Below you will use the latitude and longitude of one corner
of a 15-minute quadrangle map to determine the latitude and longitude
of another corner.
Point B is located at 40° south latitude and 20° west longitude.
Assuming that Point B is at the northwest corner of a 15-minute
quadrangle map, what is the latitude and longitude of the southeast
corner of the map?
Answer: 40 degrees 15' south latitude, 19 degrees 45' west longitude
●● Launch Google Earth™ by clicking on this link to locate the Starved
Rock Lodge at Starved Rock State Park, Illinois. If you do not have
Google Earth installed, download it at
http:/www.google.com/earth/index.html and install it on your computer
before you begin.
In the Layers Panel on the lower right, make sure the Borders and Labels
and Places boxes are checked.
Using Placemark A, which of the following is the best estimate of the
latitude and longitude of the park in degrees, minutes and seconds?
Answer: 41 degrees 18' 20 N, 88 degrees 58' 29 W
●● What is the elevation of the Starved Rock State Park, Illinois? Use
Placemark A as reference point. If your elevation in Google Earth™ is
any unit besides feet, go to "Tools" > "Options" and change the "Unit of
Measurement" unit to "Feet, Miles".
Answer: 635 feet
