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