Geology Lab Quiz 1 - Maps
To show topography in a flat coastal area, the most appropriate contour interval would be either 5, 10, 20, or 100 feet. Which one?
5
how many feet in a mile
5280
The Public Land Survey System is used in all of the following states except ...
Massachusetts (northeast)
Do contour lines ever cross?
No
What does a map scale of 1:24000 indicate?
One (anything) on the map equals 24000 (the same thing) on the ground.
Which shows topography of a landscape?
a contour map
What does a map scale of 1:24,000 describe?
a map where 1 inch corresponds to 2000 feet on the ground (24000 inches is 2000 feet)
Contour lines on a map connect points of ...
equal elevation
The latitude of a location is based on the ...
equator
The zero contour line is also known as ...
sea level
Contour lines on a topographic map cannot be ...
drawn below sea level
Why is vertical exaggeration often used on maps and map profiles?
to make topographic features like hills and valleys more visible
On a map with a scale of 1:48000, a distance of 1 mile would be represented by how many inches?
1 mi RL x (5280 ft RL/1 mi RL) x (12 in RL/1 ft RL) x (1 in map/48000 in RL) = 1.32 in map
To show topography in a rugged, mountainous area, the most appropriate contour interval would be either 5, 10, 20, or 100 feet. Which one?
100
2 maps have been drafted so that each fills a sheet of 8.5x11 paper, one at a scale of 1:24000 and the other at 1:62500. Which covers more area?
The map w/ the scale of 1:62500 covers more area than the map of 1:24000
Base lines and principal meridians are reference lines in the ___ system
latitude/longitude system
Information on the borders of a topographic map includes what 3 things?
the year the map was made, the map scale, the latitude/longitude of the 4 corners of the map
A vertical exaggeration of 1.00 x on a topographic profile means ...
the vertical scale of the profile is the same as the map scale
Small tick marks (hachures) on contour lines indicate ...
depressions
A benchmark is ...
a permanent marker on the ground that indicates location and elevation
Which elements are and are not shown on an aerial photograph?
are: lakes, roads, buildings not: elevations and slope steepness
Meridians of longitude meet where?
at the North and South poles
What are the latitude/longitude and UTM systems used to describe?
the location of points on a globe
What is true of map projections?
They are needed to portray the nearly sphere shape of Earth on a flat page. They can significantly distort shapes of continents/oceans. They can be chosen so they show particular parts of a landmass most accurately.
You're drawing a map and the paper is not large enough for the scale, do you make your scale (the # after the 1:) bigger or smaller?
bigger ... instead of 1:1000 use 1:5000 eg
A good map contains ways to determine ...
distance, direction, and location between/of points
Isotherms on weather maps differ from contour lines on topographic maps in that they ...
do not show changes in elevation
A direction of 315 degrees in the azimuth system corresponds to what direction ...
northwest (out of 360 degrees)
The longitude of a location is based on the ...
prime meridian
