NR 215 Final Exam Questions & Answers With Complete
Solutions
(T/F) A single pace counts every time your feet touch the
ground. Correct Answers True
(T/F) An initial point is the south west corner of a UTM grid
zone. Correct Answers False
(T/F) An opisometer is more precise than an engineer's scale
when measuring curved map distances. Correct Answers True
(T/F) Latitude and Longitude coordinates must be given with
either a positive/negative sign or a cardinal direction. Correct
Answers True
(T/F) The person with the head chain role holds the reel end of
the tape and takes the distance measurement. Correct Answers
False
(T/F) The precision of a Merritt Hypsometer is 0.5 feet. Correct
Answers False
(T/F) Two watch towers spot smoke rising from the same spot.
With only bearings to the smoke from the two watch towers, the
exact location of the fire can be pinpointed. Correct Answers
True
(T/F) Using a local volume table requires both DBH and height
of a tree to find volume. Correct Answers False
,% to degrees Correct Answers tan (degrees) = percent slope/
100
1 board foot in inches Correct Answers 144 in ^ 3
A forest manager wants to inventory a portion of their land.
They know that the plot is a rectangle of dimensions 1,500 by
2,500 feet. How many acres is the plot? Correct Answers
86.09
A student knows that their double pace is 5.02 feet per pace.
How many paces should they walk to get to an object 123 feet
away? Report your answer to the half of a pace. Correct
Answers 24.5
A student measures a straight map feature with an engineer's
scale. The student is measuring using the side of the engineer's
scale that has a "50" at the end of the scale and discovers that
their map feature ends exactly at the tick mark with the number
45 above it. How many inches long is their feature on the map?
Correct Answers 9 inches
A student measures a vertical angle with a clinometer twice and
wants to calculate their ratio of error.
Measurement 1- (top angle- 43.5), (bottom angle- -3)
Measurement 2- (top angle- 45), (bottom angle- -3)
Using the total angles from measurements 1 and 2, calculate the
ratio of error in the form of 1/X and submit the denominator (X).
Correct Answers 31.5
, A student measures two diameters on an elliptical tree with the
Biltmore stick. Which mean should they use to find the
representative diameter?
A. Arithmetic Mean
B. Geometric Mean Correct Answers B. Geometric Mean
A student stands 50 feet (HD) from a tree and measures height
in percent using an Abney level. The top reading was 92 and the
bottom reading was -10. How tall is the tree in feet? Correct
Answers 51
A student uses the above photo to determine the area of the
building circled in green. Use the scale you calculated from the
above question and the below information to find the area in
square feet.
The student uses a 64 dot per inch dot grid and counts that the
building contains 72.5 dots after averaging two data points.
Correct Answers 4,640 square feet
A student wants to discover the scale of the above aerial photo
by measuring the length of a building in red. On the ground,
they found that the building was 80 feet long. On their photo,
they measured the length of the building to be 1.25 inches. What
is the ratio scale of the photo to the nearest ones digit? Report
the right hand side as your answer. For example, if the
calculated scale was 1:2000, you would report 2000. Correct
Answers 768
Solutions
(T/F) A single pace counts every time your feet touch the
ground. Correct Answers True
(T/F) An initial point is the south west corner of a UTM grid
zone. Correct Answers False
(T/F) An opisometer is more precise than an engineer's scale
when measuring curved map distances. Correct Answers True
(T/F) Latitude and Longitude coordinates must be given with
either a positive/negative sign or a cardinal direction. Correct
Answers True
(T/F) The person with the head chain role holds the reel end of
the tape and takes the distance measurement. Correct Answers
False
(T/F) The precision of a Merritt Hypsometer is 0.5 feet. Correct
Answers False
(T/F) Two watch towers spot smoke rising from the same spot.
With only bearings to the smoke from the two watch towers, the
exact location of the fire can be pinpointed. Correct Answers
True
(T/F) Using a local volume table requires both DBH and height
of a tree to find volume. Correct Answers False
,% to degrees Correct Answers tan (degrees) = percent slope/
100
1 board foot in inches Correct Answers 144 in ^ 3
A forest manager wants to inventory a portion of their land.
They know that the plot is a rectangle of dimensions 1,500 by
2,500 feet. How many acres is the plot? Correct Answers
86.09
A student knows that their double pace is 5.02 feet per pace.
How many paces should they walk to get to an object 123 feet
away? Report your answer to the half of a pace. Correct
Answers 24.5
A student measures a straight map feature with an engineer's
scale. The student is measuring using the side of the engineer's
scale that has a "50" at the end of the scale and discovers that
their map feature ends exactly at the tick mark with the number
45 above it. How many inches long is their feature on the map?
Correct Answers 9 inches
A student measures a vertical angle with a clinometer twice and
wants to calculate their ratio of error.
Measurement 1- (top angle- 43.5), (bottom angle- -3)
Measurement 2- (top angle- 45), (bottom angle- -3)
Using the total angles from measurements 1 and 2, calculate the
ratio of error in the form of 1/X and submit the denominator (X).
Correct Answers 31.5
, A student measures two diameters on an elliptical tree with the
Biltmore stick. Which mean should they use to find the
representative diameter?
A. Arithmetic Mean
B. Geometric Mean Correct Answers B. Geometric Mean
A student stands 50 feet (HD) from a tree and measures height
in percent using an Abney level. The top reading was 92 and the
bottom reading was -10. How tall is the tree in feet? Correct
Answers 51
A student uses the above photo to determine the area of the
building circled in green. Use the scale you calculated from the
above question and the below information to find the area in
square feet.
The student uses a 64 dot per inch dot grid and counts that the
building contains 72.5 dots after averaging two data points.
Correct Answers 4,640 square feet
A student wants to discover the scale of the above aerial photo
by measuring the length of a building in red. On the ground,
they found that the building was 80 feet long. On their photo,
they measured the length of the building to be 1.25 inches. What
is the ratio scale of the photo to the nearest ones digit? Report
the right hand side as your answer. For example, if the
calculated scale was 1:2000, you would report 2000. Correct
Answers 768
