Measurements 1 (2/29/21) Flashcards

1
Q

The cost of a timber cruise should be kept to a minimum of ___ percent of the total timber value.

A

5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Pacing is the most rudimentary of all techniques in determining what in the field?

A

Distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

A professional forester’s pacing accuracy is expected to be what?

A

1 in 8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Pace distances should be field recorded in what?

A

Paces/Chains

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

_______ are horizontal angles that are references to one of the quadrants of the compass namely northeast, southeast, southwest, or northwest.

A

Bearing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

_____ are comparable angles measured clockwise from due north this the readings from 0 to 360 degrees.

A

Azimuth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The direction in which the compass needle points.

A

Magnetic North

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the angle formed between magnetic north and true north?

A

Declination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the line of zero declination passing through the eastern part of the US?

A

Agonic Line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Consists of a magnetized steel needle mounted on a pivot at the center of a graduated circle.

A

Compass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A field survey of an area or tract of land where all boundary lines and corner angles are measured and the acres are determined.

A

Closed Traverse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A compass reading from a point on a traverse to the previous point. This reading should measure 180 degrees.

A

Backsight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Topographic maps have contour lines that indicate what?

A

Elevation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When using a topographic map representative fractions are converted to feet per inch by what?

A

Divide by 12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A survey method used to describe a legal description of property using references to bearings, distances, and permanent monuments.

A

Metes and Bounds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A survey method that uses a rectangular system of sections, townships, and ranges.

A

Public Land Survey

17
Q

The origin of a survey system established by astronomical observation.

A

Initial Point

18
Q

The longitude true north and south line that intersects the base line at the initial point.

A

Principal Meridian

19
Q

The latitude true east and west line that intersects the principal meridian at the initial point.

A

Base Line

20
Q

What do you call a division of territories 6 miles long at the south east and west boundaries and slightly less than 6 miles on the north which accounts for the correction lines located every 6 miles on a standard parallel?

A

Township

21
Q

Lines established as true meridians at 6-mile intervals along each standard parallel and run due north of the next standard parallel.

A

Range Lines

22
Q

A section is composed of how many acres?

A

640

23
Q

A section measures approximately how many square miles?

A

1

24
Q

Consists of approximately 160 acres and is designated as the northeast, southeast, northwest, or southwest.

A

Quarter Section

25
Q

The map showing the magnetic declination for a specific interval of time.

A

Isogonic Chart

26
Q

The survey record of parceling of land according to a prescribed method by law, the deed description of property.

A

Legal Description

27
Q

The GPS consists of ____ satellites, each satellite completely circles at ____ hour intervals.

A

24 12

28
Q

How many satellites are required for accurate measurement with a GPS?

A

4

29
Q

What is the technical term referring to the method GPS receivers use to calculate position?

A

Trilateration (Triangulation)

30
Q

When moving from one geographic region to another you compass __________ must be adjusted to point true north.

A

Declination

31
Q

A dot grid is used on a map or aerial photo determine what?

A

Acres

32
Q

A surveyor’s or Gunner’s chain is ___ feet long and is divided into ____ equal parts that are known as ______.

A

66 100 Links

33
Q

How many sections are in a township?

A

36

34
Q

Which section is designated as school property?

A

16th