RNR 2102 EVALUATION EXAM 2026/2027 QUESTIONS
AND SOLUTIONS RATED A+
✔✔why are plots in biomass sampling square rather than circular? - ✔✔it is easier to
construct
✔✔why are plots used in overstay sampling circular rather than square or rectangle? -
✔✔use circular plots in the woods because sharp corners are difficult to find and turn in
the woods
✔✔why is dry weight often deemed more desirable than green weight? - ✔✔so that the
weight is not over estimated from the water content
✔✔can a vegetation board give you an estimate of density of understory vegetation? -
✔✔no, measures index
✔✔give examples of wildlife indices - ✔✔track count
deer carcasses
age ratio
sex ratio
electro fishing
catch effort
✔✔give an example of an index that needs to be standardized - ✔✔bird call counts
✔✔why do we need inventory forest stands? - ✔✔1. financial
2. management planning
3. policy making
4. research
✔✔what is the main difference between sampling forest stands and sampling wildlife or
fisheries population? - ✔✔trees are located at same place at all times when wildlife and
fisheries are constantly moving
✔✔i just bought a new 100-ft loggers tape. what do i need to do before using it? - ✔✔1.
check what unit its in
2. where is zero on tape
3. check calibration: inches, decimals, foot?
✔✔i paced a distance and calculate it in chains. how many decimals should I present
the results? explain - ✔✔2 decimals to be accurate to the nearest link
✔✔why is chain a preferred unit to measure length, as compared to feet? - ✔✔chain is
used inland distances and it is easy to convert from chains to acres
, ✔✔an observation is recorded as 7.600 inches, which implies a measurement that is
precise to the nearest ____ inch - ✔✔thousandth
✔✔suppose you want to measure direction, what are the first few things you have to do
when you pick up a new compass? - ✔✔1. checkin bearing or azimuth
2. 1 tick mark is how many degrees?
3. check and set declination
✔✔what is the total interior angle of an n-sided polygon? - ✔✔(n-2)180
✔✔compute error of closure from a given closed traverse - ✔✔100x error of closing gap
(ch)/ total distance traveled (ch)
✔✔what is the name of the device used to measure map area? - ✔✔planimeter
✔✔what are the drawbacks of "metes and bounds" surveys? - ✔✔it is a description
rather than actual measurements
✔✔what is the name of the survey system that replaced the metes and bounds
surveys? - ✔✔US public land survey
✔✔what are the dimensions of a tract, township, and section? - ✔✔section =1x1
township=6x6
quadrangle=24x24
✔✔identify on diagrams: township ( T2S R3W) section, sub section (E1/2 NW1/4) - ✔✔
✔✔what is dbh? where do we measure dbh? why are that point? - ✔✔diameter great
height; measure it at 4.5' because it is a standard and usually free from buttswell
✔✔one inch diameter classes: the 10 class spans from ____ inches to ___ inches -
✔✔9.51"-10.5"
✔✔two inches diameter classes the 10 inch class sans from ____ inches to ____ inches
- ✔✔9.01"-11.0"
✔✔a forester measured a tree duh as 12 inches. can you guess whether he was using
1- inch or 2- inch duh classes? explain - ✔✔it can be in either 1" or 2" class because 1"
classes contain any number and 2" classes contain even numbers
✔✔what does D-tape really measure? - ✔✔measures circumference, not diameter
AND SOLUTIONS RATED A+
✔✔why are plots in biomass sampling square rather than circular? - ✔✔it is easier to
construct
✔✔why are plots used in overstay sampling circular rather than square or rectangle? -
✔✔use circular plots in the woods because sharp corners are difficult to find and turn in
the woods
✔✔why is dry weight often deemed more desirable than green weight? - ✔✔so that the
weight is not over estimated from the water content
✔✔can a vegetation board give you an estimate of density of understory vegetation? -
✔✔no, measures index
✔✔give examples of wildlife indices - ✔✔track count
deer carcasses
age ratio
sex ratio
electro fishing
catch effort
✔✔give an example of an index that needs to be standardized - ✔✔bird call counts
✔✔why do we need inventory forest stands? - ✔✔1. financial
2. management planning
3. policy making
4. research
✔✔what is the main difference between sampling forest stands and sampling wildlife or
fisheries population? - ✔✔trees are located at same place at all times when wildlife and
fisheries are constantly moving
✔✔i just bought a new 100-ft loggers tape. what do i need to do before using it? - ✔✔1.
check what unit its in
2. where is zero on tape
3. check calibration: inches, decimals, foot?
✔✔i paced a distance and calculate it in chains. how many decimals should I present
the results? explain - ✔✔2 decimals to be accurate to the nearest link
✔✔why is chain a preferred unit to measure length, as compared to feet? - ✔✔chain is
used inland distances and it is easy to convert from chains to acres
, ✔✔an observation is recorded as 7.600 inches, which implies a measurement that is
precise to the nearest ____ inch - ✔✔thousandth
✔✔suppose you want to measure direction, what are the first few things you have to do
when you pick up a new compass? - ✔✔1. checkin bearing or azimuth
2. 1 tick mark is how many degrees?
3. check and set declination
✔✔what is the total interior angle of an n-sided polygon? - ✔✔(n-2)180
✔✔compute error of closure from a given closed traverse - ✔✔100x error of closing gap
(ch)/ total distance traveled (ch)
✔✔what is the name of the device used to measure map area? - ✔✔planimeter
✔✔what are the drawbacks of "metes and bounds" surveys? - ✔✔it is a description
rather than actual measurements
✔✔what is the name of the survey system that replaced the metes and bounds
surveys? - ✔✔US public land survey
✔✔what are the dimensions of a tract, township, and section? - ✔✔section =1x1
township=6x6
quadrangle=24x24
✔✔identify on diagrams: township ( T2S R3W) section, sub section (E1/2 NW1/4) - ✔✔
✔✔what is dbh? where do we measure dbh? why are that point? - ✔✔diameter great
height; measure it at 4.5' because it is a standard and usually free from buttswell
✔✔one inch diameter classes: the 10 class spans from ____ inches to ___ inches -
✔✔9.51"-10.5"
✔✔two inches diameter classes the 10 inch class sans from ____ inches to ____ inches
- ✔✔9.01"-11.0"
✔✔a forester measured a tree duh as 12 inches. can you guess whether he was using
1- inch or 2- inch duh classes? explain - ✔✔it can be in either 1" or 2" class because 1"
classes contain any number and 2" classes contain even numbers
✔✔what does D-tape really measure? - ✔✔measures circumference, not diameter
