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Questions and Answers
Which one of the following statements accurately describes a grid reference?
Which one of the following statements accurately describes a grid reference?
- A network of parallels of latitude and meridians of longitude
- A set of horizontal grid lines numbered from south to north
- A set of vertical grid lines numbered from west to east
- A set of lines used to identify locations on a map (correct)
What is the purpose of eastings on a topographical map?
What is the purpose of eastings on a topographical map?
- To draw vertical grid lines
- To identify locations on a map
- To number grid lines from west to east (correct)
- To locate large areas like lakes
What is the purpose of northings on a topographical map?
What is the purpose of northings on a topographical map?
- To draw horizontal grid lines (correct)
- To number grid lines from south to north
- To locate large areas like lakes
- To identify locations on a map
When would you use a four-figure grid reference?
When would you use a four-figure grid reference?
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What does a six-figure grid reference help you locate?
What does a six-figure grid reference help you locate?
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Study Notes
Grid References
- A grid reference is a precise method of identifying locations on a map using a coordinate system based on intersecting grid lines.
Eastings on Topographical Maps
- Eastings refer to the vertical grid lines on a topographical map that measure distance eastward from a defined origin, allowing users to pinpoint locations precisely.
Northings on Topographical Maps
- Northings are the horizontal grid lines that measure distance northward from the defined origin, aiding in accurate location identification on the map.
Four-Figure Grid Reference Usage
- A four-figure grid reference provides a general area location, typically used for rough navigation or when exact positioning is not critical.
Six-Figure Grid Reference Significance
- A six-figure grid reference allows for much more precise location identification, useful in detailed navigation and pinpointing specific features on a map.
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