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GIS RNR 2102 Exam 1 and 3
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GIS RNR 2102 Exam 1 and 3
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GIS RNR 2102 Exam 1 and 31. Why do we need to inventory forest stands? - CORRECT ANSWER-to ensure
equal forest harvesting by determining age. Forest stands break down a forest
into STANDS by the type of trees, diameter, basal area.
management, money, policy, and research
2. What is the main difference between sampling forest stands and sampling
wildlife or fisheries population? - CORRECT ANSWER-fish and wildlife move
making it more difficult to sample than trees
1. I just bought a new 100-ft logger's tape. What do I need to do before using it? -
CORRECT ANSWER-Check to see if it is in inches or decimals and where 0 is
5. I paced a distance and calculate it in chains. How many decimals should I
present the result? Explain. - CORRECT ANSWER-2 decimals to the nearest link
because pacing is an estimation
7. Why is chain a preferred unit to measure length, as compared to feet? -
CORRECT ANSWER-The chain is the preferred unit for measuring due to the
fact it is easy to convert from
chains^2 to acres and it is good for measuring long distances.
8. An observation is recorded as 7.600 inches, which implies a measurement that
is precise to the nearest ______ inch. - CORRECT ANSWER-
13. Suppose you want to measure direction, what are the first few things you
have to do when you pick up a new compass? - CORRECT ANSWER-You first
check the Azimuth or bearing and then check the declination
16. What is the total interior angle of an n-sided polygon? - CORRECT
ANSWER-180* is the total interior angle of a n- sided polygon
18. What is the name of the device used to measure map area? - CORRECT
ANSWER-Dot Grids, Palminometer
, 19. What are the drawbacks of "metes and bounds" surveys? - CORRECT
ANSWER-Meters and bounds use a description based system and these
descriptions can move
over time. (tree get chopped down, boulder moved)
20. What is the name of the survey system that replaced the metes and bounds
surveys? - CORRECT ANSWER-US Public Land Survey
21. What are the dimensions of a tract, township, and section? - CORRECT
ANSWER-
24. What does GPS stand for? What does GIS stand for? - CORRECT
ANSWER-Global Positioning System
Global Information System
1. What is dbh? Where do we measure dbh? Why at that point? - CORRECT
ANSWER-DBH= Dimeter at Breast Height. Measured at 4.5 feet this is the
standard height that is
often free of buttswells.
5. What does D-tape really measure? - CORRECT ANSWER-D- Tape measures
circumference
C = πD ==> every 3.14" on D-Tape = 1 inch of diameter
overestimate: always positively biased.
6. For D-tapes: Is a 1-inch interval between 7 and 8 inches of the same distance
as another 1- inch interval between 12 and 13 inches? Explain why. - CORRECT
ANSWER-
7. For Biltmore sticks: Is a 1-inch interval between 7 and 8 inches of the same
distance as another 1-inch interval between 12 and 13 inches? Explain why. -
CORRECT ANSWER-
8. I measured diameter of a tree using two different instruments and obtained
readings of 12.3" and 12.5". Which reading belonged to the D-tape and which
belonged to the calipers? Why? - CORRECT ANSWER-The 12.5 belongs to the
D- Tape because there is almost always overestimating unless
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