Chapter 14- Map Reading And Area Calculation Flashcards Preview

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Flashcards in Chapter 14- Map Reading And Area Calculation Deck (25)
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1
Q

When did congress set up a land inventory system?

A

1785

2
Q

How many states utilize the Public Land Survey System?

A

31

3
Q

What year was Florida purchased from Spain?

A

1819

4
Q

Where is the monument marking the base point for all Florida surveys located?

A

Tallahassee

5
Q

How far apart are township lines?

A

6 miles

6
Q

How many acres is a regular Township?

A

23,040 acres

7
Q

How many sections are there in a “standard” township?

A

36

8
Q

How many acres are there in a section?

A

640

9
Q

Where are Spanish land grants found?

A

Along the Gulf coast

Along major rivers

Along the Atlantic coast

10
Q

On older GPS units, the U.S. National Grid format can be accessed by selecting what?

A

MGRS

11
Q

The Grid Zone Designator square forms an area of what?

A

6 degrees of longitude by 8 degrees of latitude

12
Q

In a USNG location description, the number you read to the right is known as what?

A

The Easting

13
Q

A one kilometer square is relative to a square mile how?

A

It is 40% of a sq mile

14
Q

When locating a USNG coordinate, how are the numbers read?

A

Left to right, then down to up

15
Q

How accurate is a USNG coordinate with 8 digits?

A

Within 10 meters

16
Q

what is the area of a rectangle?

A

Length X width

17
Q

What is the compass azimuth direction of West?

A

270 degrees

18
Q

How many sq feet are in one acre?

A

43,560 sq feet

19
Q

How many feet are in one mile?

A

5280

20
Q

How many feet are in one chain?

A

66 feet

21
Q

If you have a fire that is 44 chains wide by 30 chains long, how many acres are involved?

A

132

22
Q

What is the average pace count of an adult?

A

10-14 paces per chain

23
Q

When determining latitude and longitude, the FFS uses which format with GPS devices?

A

Degrees, Minutes, Decimal Seconds

24
Q

When obtaining a latitude/longitude for the FFS, which map datum should be selected when using a GPS?

A

NAD83

25
Q

How long was the original measure of length used for land inventory (the cubit)?

A

18 inches