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Quiz about Topographic Maps
Quiz about Topographic Maps

Topographic Maps Trivia Quiz


A mapping revolution ! From hand-drawn to computer-generated...how much do you know about this indispensable tool ??

A multiple-choice quiz by catnippin. Estimated time: 6 mins.
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Author
catnippin
Time
6 mins
Type
Multiple Choice
Quiz #
46,102
Updated
Jan 12 23
# Qns
10
Difficulty
Difficult
Avg Score
4 / 10
Plays
3084
Last 3 plays: Guest 112 (5/10), Damrhein (5/10), RioRiver (4/10).
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Question 1 of 10
1. In what year was the U.S. Geological Survey (USGS) topographic map created? Hint


Question 2 of 10
2. What feature most distinguishes topographic maps from other types of maps? Hint


Question 3 of 10
3. The most common scale for a USGS topographic map is 1:24,000. What would one inch on the map represent on the earth's surface? Hint


Question 4 of 10
4. We can't forget Alaska ! What is the primary topographic mapping scale here? Hint


Question 5 of 10
5. What led to a revolution in mapmaking in the 1940s? Hint


Question 6 of 10
6. Aerial photography used by the USGS's topographic mapping program is obtained through NAPP. What does NAPP stand for?

Answer: (Four Words (three of the words, or form of the words, are found within the question!))
Question 7 of 10
7. Topographic map features use different colors - green areas are woodlands, brown is for contour lines....what color shows features that are added from aerial photographs and other sources, but are not field checked? Hint


Question 8 of 10
8. Contours lines can cross over each other. True or False?


Question 9 of 10
9. What is the name for contours which are generally offshore and show the shape and slope of the ocean bottom? Hint


Question 10 of 10
10. Enter the computer age ! What is the format for the USGS's digital representation of information typically found on a topographic map (point locations, lines, and area outlines)? Hint



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Most Recent Scores
Mar 01 2024 : Guest 112: 5/10
Feb 06 2024 : Damrhein: 5/10
Feb 04 2024 : RioRiver: 4/10
Jan 23 2024 : Guest 163: 4/10
Jan 05 2024 : Guest 207: 3/10

Score Distribution

quiz
Quiz Answer Key and Fun Facts
1. In what year was the U.S. Geological Survey (USGS) topographic map created?

Answer: 1879

The first map was produced in 1882.
2. What feature most distinguishes topographic maps from other types of maps?

Answer: they show contour lines to portray the shape and elevation of the land

Topographic maps render the 3-dimensional ups and downs of the terrain on a 2-dimensional surface....how elevating !
3. The most common scale for a USGS topographic map is 1:24,000. What would one inch on the map represent on the earth's surface?

Answer: 2,000 feet

These are also known as 7.5-minute quadrangles. There are more than 54,000 maps in this series covering the 48 contiguous States and Hawaii...who wants to join them end to end with me ??
4. We can't forget Alaska ! What is the primary topographic mapping scale here?

Answer: 1:63,360

Each of the 2,700 Alaska quadrangles covers 15 minutes of latitude, and varies from 20 to 36 minutes of longitude, depending on location. Our largest state is at a smaller scale!...one inch represents one mile.
5. What led to a revolution in mapmaking in the 1940s?

Answer: aerial photography and photogrammetry

Photogrammetry is the science of obtaining reliable information by measuring and interpreting photographs...better than carrying around a portable drawing board on a tripod with a sighting device !
6. Aerial photography used by the USGS's topographic mapping program is obtained through NAPP. What does NAPP stand for?

Answer: National Aerial Photography Program

NAPP (National Aerial Photography Program) flights are flown in a north-south direction along carefully determined flight lines. It takes ten precisely positioned NAPP aerial photographs to provide the stereoscopic coverage needed for each 7.5-minute quadrangle map !
7. Topographic map features use different colors - green areas are woodlands, brown is for contour lines....what color shows features that are added from aerial photographs and other sources, but are not field checked?

Answer: purple

Working over a light table, scribers use engraving instruments to etch the map's lines and symbols. All features to be printed in the same color on the map are etched onto separate scribed sheets. A map can have 10 or more different layers !
8. Contours lines can cross over each other. True or False?

Answer: True

Contour lines can cross if there is an overhang."
9. What is the name for contours which are generally offshore and show the shape and slope of the ocean bottom?

Answer: bathymetric

Bathymetric contours are shown in meters at intervals appropriate to map scale and coastal profile.
10. Enter the computer age ! What is the format for the USGS's digital representation of information typically found on a topographic map (point locations, lines, and area outlines)?

Answer: DLG

Digital line graphs ! DEM's (digital elevation models) are matrices of elevations for ground points spaced at regular distances. GIS (geographical information systems) makes it possible to combine layers of digital data from different sources. DRG (digital raster graphics) are scanned USGS quadrangle maps. Remember...a map is your friend!
Source: Author catnippin

This quiz was reviewed by FunTrivia editor minch before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.
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