Final Exam

Question 1

One acre =

Answer 1

10 square chains, 43560 square feet

Question 2

One section =

Answer 2

640 acres, 80 chains

Question 3

One chain =

Answer 3

66 feet

Question 4

My pace count =

Answer 4

12.9 paces per chain

Question 5

Mensuration

Answer 5

Measuring of Areas, Lengths, Volumes.

Question 6

Declination

Answer 6

Angular difference between true north and magnetic north.

Question 7

How to convert dbh to basal area.

Answer 7

dbh2 x .005454

Question 8

Name 3 intstruments for measuring tree diameter.

Answer 8

biltmore stick, diameter tape, calipers

Question 9

Name 3 instruments for measuring tree height.

Answer 9

Merrit Hypsometer, abbey level, clinometer.

Question 10

What are key measurements taken in Forest Surveying?

Answer 10

Distance and Direction

Question 11

Define 3 forest stand parameters.

Answer 11

stand density, volume, species compisition, slope

Question 12

ID 3 of the timed range signals used for GPS

Answer 12

P-code - military
Carrier phase - High accuracy level surveying
Coarse acquisition - ordinary location and mapping

Question 13

ID 3 factors that will affect tree grade

Answer 13

Species, Height, # of Defects

Question 14

ID 4 wood product classes

Answer 14

Veneer – No defects,
Construction – Minimal defects, used for RR ties and building
Local use – Lots of Defects, can be used for Firewood, pallets

Question 15

What is PDOP

Answer 15

Position dilution of precision -

Defines a small ellipse that includes the actual point. Called Expected probable Error or EPE on our GPS systems

Question 16

Types of Forest Inventory

Answer 16

Land acquisition - Assess condition of timber on new property for moderate level valuation
Timber Sale - Primary OBJ is to calculate the net volume or value of merchantable trees
Management plan or continuous forest –
Specific Condition Inventory –

Question 17

How to find variance and standard deviation

Answer 17

1. Find the mean
2. find the difference of the #s from the mean
3. square differences and add them up
4. divide the result of the addition by the # of variables
5. That # is your variance, square root that, and then it is your standard deviation.

Question 18

How to find the SEM

Answer 18

STDEV/ square root of the population size or # of variables

Question 19

Simple Statistics Definitions

Answer 19

Mode - most freq occurred value
Median - middle value of series when arranged in order of magnitude
Mean - Avg of set of observations
Range - Diff b/w largest and smallest value

Question 20

How to construct a Confidence Interval

Answer 20

Avg +/- t(SEM)