COLORADO UNIVERSITY AT DENVER
ENGINEERING SURVEYING CVEN 2212
LECTURE 1 – LEVELING
HOMEWORK
Problem 1
Focusing the reticule in the eyepiece, and also focusing the image seen through
the telescope, ensures that:
a) Both can be read correctly
b) Your eye can see both together
c) One does not move with respect to the other when the eye is moved
d) All the above
Problem 2
A peg test is used to determine the error of collimation:
a) Frequently
b) When the condition of an instrument is not certain
c) Always
d) Once a month
Problem 3
Leveling is used to:
a) Collect ground information before development / design
b) Provide elevations during construction
c) Perform checks of the constructed detail
d) All the above
Problem 4
Curvature and refraction corrections must be calculated every time:
a) For all distances
b) For long distances
c) For short distances
d) Never
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COLORADO UNIVERSITY AT DENVER
ENGINEERING SURVEYING CVEN 2212
Problem 5
The balancing of leveling distances is to:
a) Eliminate the effects of collimation between one backsight and one
foresight
b) Eliminate the effects of collimation around a closed level loop
c) Eliminate the effects of collimation along any level traverse
d) All of them
Problem 6
In trigonometric leveling, the horizontal distance HD is calculated from the slope
distance SD and using the zenith angle z using which equation?
a) HD = SD sin(z)
b) HD = SD tan(z)
c) HD = SD cos(z)
Problem 7
Complete the following set of differential leveling notes, check the misclosure and
adjust the level loop. Use Excel for your calculations.
Point
BS
BM3
4.92
TP1
4.27
6.50
TP2
4.77
5.95
TP3
8.21
5.69
BM3
HI
Adj. HI
FS
Elevation
5289.34
3.85
Miscl.=
Nr.
HI=
Corr.=
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Adj.
Elevation
COLORADO UNIVERSITY AT DENVER
ENGINEERING SURVEYING CVEN 2212
Problem 8
A--------------------------Setup1----------------------Setup2-----------------------B
d
d
d
Find the collimation error if a peg test is run as shown above. All are separated
by the same distance d. The rod readings from each instrument setup are:
From Setup1:
Rod reading at A = 4.75’, Rod reading at B = 5.11
From Setup2:
Rod reading at A = 6.11’, Rod reading at B = 6.42’
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