agn 143 quiz questions for exam 2 Questions with complete solution 2024/2025
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AGN 143
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AGN 143
agn 143 quiz questions for exam 2 Questions with complete solution 2024/2025 agn 143 quiz questions for exam 2
T/F: A common device for measuring tree diameter at breast height (DBH) is a Biltmore stick. - correct answer true
Say you measure total height of a tree using a clinometer. You a...
agn 143 quiz questions for exam 2
T/F: A common device for measuring tree diameter at breast height (DBH) is a
Biltmore stick. - correct answer ✔true
Say you measure total height of a tree using a clinometer. You are 50 ft
horizontal distance from the tree and you get a top measure of 80% and a
bottom measure of −4%. What is the height of the tree? - correct answer
✔42ft
If you are measuring tree height with a clinometer and the bottom
measurement is a positive number, are you standing: - correct answer
✔downhill from the base of the tree
Say you are trying to take a diameter at breast height (DBH) measurement
from a tree and accidentally take the measurement at 6 ft off the ground rather
than 4.5 ft off the ground. The resulting DBH measurement will most likely be:
- correct answer ✔smaller than it should be
When taking a diameter at breast height (DBH) measurement with a Biltmore
stick, how far does the stick need to be held away from your eye? - correct
answer ✔25 in.
T/F: Basal area (BA) of a tree is calculated using both tree diameter at breast
height (DBH) and tree height. - correct answer ✔false
T/F: The value used for calculating individual tree basal area (BA) is called the
Logger's constant. - correct answer ✔false (foresters constant)
, You measure a shagbark hickory and get a diameter at breast height (DBH) of
7 in.. What is the basal area (BAt) of this tree? Be sure to round your answer
up to the nearest 10th (one decimal place) and choose the closest answer. -
correct answer ✔0.3ft2
T/F: When using point sampling, each tree in the forest stand has an equal
probability of being selected. - correct answer ✔false
You measure a northern red oak tree and get a diameter at breast height
(DBH) of 18 in.. What is the basal area (BAt) of this tree? Be sure to round
your answer up to the nearest 10th (one decimal place) and choose the
closest answer. - correct answer ✔1.8ft2
In the unlikely circumstance that you find a perfectly cylindrical log, which of
the log volume formulae will give you an absolutely accurate calculation of
volume? (huber, smalian, or newton?) - correct answer ✔all of them
Say you measure a log with the purpose of estimating cubic foot volume. The
log has a length (L) of 32 ft and cross-sectional areas of B = 2.5, B1/2 = 1.2,
and b = 0.9. What is the cubic volume of the log using Huber? - correct
answer ✔38.4ft3
Say you measure a log with the purpose of estimating cubic foot volume. The
log has a length (L) of 32 ft and cross-sectional areas of B = 2.5, B1/2 = 1.2,
and b = 0.9. What is the cubic volume of the log using Smalian? - correct
answer ✔54.4ft3
Say that you have measured a black oak during a forest inventory and get a
diameter at breast height (DBH) of 18 in. with 2 merchantable logs. Based on
Scribner (form class 78), what is the board foot merchantable volume of this
tree? - correct answer ✔209 bdft
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