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Intro to Land Surveying > For Test 1 > Flashcards

Flashcards in For Test 1 Deck (31):
1

1 rod=1 pole=1 perch=_____ft

16.5

2

1 mile=_____ft

5280

3

1 acre=_____(with chains)

10ch^2
(10(66x66))

4

1 acre=____m^2

4046.9

5

1 acre=____ft^2

43,560

6

1 mile=_____chains

80

7

1 chain=____ft

66

8

When computing coordinates, the sine of a line's azimuth multiplied by the line's length produces the line's _____.

Departure

9

When computing coordinates, the cosine of a line's azimuth multiplied by the line's length produces the line's _____.

Latitude

10

Azimuths are always measured in a _____ direction.

Clockwise

11

A bearing can not be greater than ____ degrees.

90

12

There are ____ minutes in a degree.

60

13

The close agreement or consistency of a group of measurements is _____.

Precision

14

The most often or commonly occurring measurement in a group is called the ____.

Mode

15

The most important quality of field notes is _____.

Accuracy

16

How many square chains are in a 1 acre tract?

10

17

1 Square Mile =______acres

640

18

1 acre tract=______ square perches

160

19

A measured value that is as close to the true or theoretical value as possible is _____.

Accurate

20

Setting the instrument over the wrong station is a ______.

Mistake

21

A series of consecutive line's directly measured by angle and distance on the ground is a ______.

Traverse

22

The distance formula

√((N₁-N₂)²+(E₁-E₂)²)

23

Standard Deviation Formula

σ=√(Σv²)/(N-1)

24

First Quadrant Bearing to Azimuth Conversion:

Drop letters

Ex. N 27° E
27°

25

First Quadrant Azimuth to Bearing Conversion:

Add letters N E

Ex. 45°
N 45° E

26

Second Quadrant Bearing to Azimuth Conversion:

Drop Letters
Subtract from 180° (180°-bearing)

Ex. S 25° E
(180°-25°=155°) 155°

27

Second Quadrant Azimuth to Bearing Conversion:

Subtract from 180° (180°-azimuth)
Add letters S E

Ex. 110°
(180°-110°=70°) S 70° E

28

Third Quadrant Bearing to Azimuth Conversion:

Drop letters
Add to 180° (180°+Bearing)

Ex. S 65° W
(180°+65°=245°) 245°

30

Third Quadrant Azimuth to Bearing Conversion:

Subtract 180° (azimuth-180°)
Add the letters S W

Ex. 260°
(260°-180°=80°) S 80° W

30

Fourth Quadrant Bearing to Azimuth Conversion:

Drop Letters
Subtract from 360° (360°-bearing)

Ex. N 35° W
(360°-35°=325°) 325°

31

Fourth Quadrant Azimuth to Bearing Conversion:

Subtract from 360° (360°-azimuth)
Add letters N W

Ex. 295°
(360°-295°=65°) N 65° W