Chapter 14- Map Reading And Area Calculation Flashcards
When did congress set up a land inventory system?
1785
How many states utilize the Public Land Survey System?
31
What year was Florida purchased from Spain?
1819
Where is the monument marking the base point for all Florida surveys located?
Tallahassee
How far apart are township lines?
6 miles
How many acres is a regular Township?
23,040 acres
How many sections are there in a “standard” township?
36
How many acres are there in a section?
640
Where are Spanish land grants found?
Along the Gulf coast
Along major rivers
Along the Atlantic coast
On older GPS units, the U.S. National Grid format can be accessed by selecting what?
MGRS
The Grid Zone Designator square forms an area of what?
6 degrees of longitude by 8 degrees of latitude
In a USNG location description, the number you read to the right is known as what?
The Easting
A one kilometer square is relative to a square mile how?
It is 40% of a sq mile
When locating a USNG coordinate, how are the numbers read?
Left to right, then down to up
How accurate is a USNG coordinate with 8 digits?
Within 10 meters
what is the area of a rectangle?
Length X width
What is the compass azimuth direction of West?
270 degrees
How many sq feet are in one acre?
43,560 sq feet
How many feet are in one mile?
5280
How many feet are in one chain?
66 feet
If you have a fire that is 44 chains wide by 30 chains long, how many acres are involved?
132
What is the average pace count of an adult?
10-14 paces per chain
When determining latitude and longitude, the FFS uses which format with GPS devices?
Degrees, Minutes, Decimal Seconds
When obtaining a latitude/longitude for the FFS, which map datum should be selected when using a GPS?
NAD83
How long was the original measure of length used for land inventory (the cubit)?
18 inches
