A survey party proceeded to do their stadia survey work as follows: the transit was set up at a point A and with the line of sight horizontal, took rod readings with the rod at point B und C, which were then measured to have taped distances from A to 200 m., and 60 m. espectively. Rod B Rod C Stadia Interval 2.001 m 0.600 m he distance from the center of the instrument to the principal focus was recorded as .30 m. Then they went on to survey other points, with some of the data recorded as ollows: with the transit at point D, two points E and F were sighted. Rod E Rod F Stadia Interval 2.120 m 3.560 m Vertical Angle + 4°22' a. - 3°17' Compute the stadia interval factor. Compute the horizontal distances DE and DF Compute the differences in elevation between points D and E and points D and C. PROBLEM 2: A traverse line AB is being measured by theodolite and subtense bar. At station A, the horizontal axis of the theodolite is 1.48m above the ground mark and the horizontal angle ubtended by a 2-meter subtense bar set up at station B is 42'18". The subtense bar is 1.22 n above the ground mark and the vertical angle measured to it on the theodplite is 13º56'. Determine the length of the line AB and the difference in elevation between the wo ground station marks. PROBLEM 3: A stadia measurement was undertaken with a theodolite having an internal focusing elescope and stadia interval factor of 98.8. When a backsight was taken on a turning point whose elevation is 205.62 m, the rod interval observed was 1.94 m; and with the orizontal hairs set at 1.50 m on the rod, the vertical angle reading was +13°45'. For a oresight to a control point, the rod intercept was 1.17 m; and with the horizontal hair eading of 1.60 m on the rod, the vertical angle observed was -7°18'. Determine the elevation of the line of sight at the instrument point and the elevation of the point on vhich the foresight was taken.
A survey party proceeded to do their stadia survey work as follows: the transit was set up at a point A and with the line of sight horizontal, took rod readings with the rod at point B und C, which were then measured to have taped distances from A to 200 m., and 60 m. espectively. Rod B Rod C Stadia Interval 2.001 m 0.600 m he distance from the center of the instrument to the principal focus was recorded as .30 m. Then they went on to survey other points, with some of the data recorded as ollows: with the transit at point D, two points E and F were sighted. Rod E Rod F Stadia Interval 2.120 m 3.560 m Vertical Angle + 4°22' a. - 3°17' Compute the stadia interval factor. Compute the horizontal distances DE and DF Compute the differences in elevation between points D and E and points D and C. PROBLEM 2: A traverse line AB is being measured by theodolite and subtense bar. At station A, the horizontal axis of the theodolite is 1.48m above the ground mark and the horizontal angle ubtended by a 2-meter subtense bar set up at station B is 42'18". The subtense bar is 1.22 n above the ground mark and the vertical angle measured to it on the theodplite is 13º56'. Determine the length of the line AB and the difference in elevation between the wo ground station marks. PROBLEM 3: A stadia measurement was undertaken with a theodolite having an internal focusing elescope and stadia interval factor of 98.8. When a backsight was taken on a turning point whose elevation is 205.62 m, the rod interval observed was 1.94 m; and with the orizontal hairs set at 1.50 m on the rod, the vertical angle reading was +13°45'. For a oresight to a control point, the rod intercept was 1.17 m; and with the horizontal hair eading of 1.60 m on the rod, the vertical angle observed was -7°18'. Determine the elevation of the line of sight at the instrument point and the elevation of the point on vhich the foresight was taken.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Answer the problems in Tacheometry.
Transcribed Image Text:PROBLEM 1:
A survey party proceeded to do their stadia survey work as follows: the transit was set up
at a point A and with the line of sight horizontal, took rod readings with the rod at point B
and C, which were then measured to have taped distances from A to 200 m., and 60 m.
respectively.
Rod B
Rod C
Stadia Interval 2.001 m 0.600 m
The distance from the center of the instrument to the principal foCus was recorded as
0.30 m. Then they went on to survey other points, with some of the data recorded as
follows: with the transit at point D, two points E and F were sighted.
Rod E
Rod F
Stadia Interval 2.120 m 3.560 m
Vertical Angle
Compute the stadia interval factor.
Compute the horizontal distances DE and DF
Compute the differences in elevation between points D and E and points D and
+ 4°22'
- 3°17'
a.
b.
С.
F.
PROBLEM 2:
A traverse line AB is being measured by theodolite and subtense bar. At station A, the
horizontal axis of the theodolite is 1.48m above the ground mark and the horizontal angle
subtended by a 2-meter subtense bar set up at station B is 42'18". The subtense bar is 1.22
m above the ground mark and the vertical angle measured to it on the theodplite is
+13°56'. Determine the length of the line AB and the difference in elevation between the
two ground station marks.
PROBLEM 3:
A stadia measurement was undertaken with a theodolite having an internal focusing
telescope and stadia interval factor of 98.8. When a backsight was taken on a turning
point whose elevation is 205.62 m, the rod interval observed was 1.94 m; and with the
horizontal hairs set at 1.50 m on the rod, the vertical angle reading was +13°45'. For a
foresight to a control point, the rod intercept was 1.17 m; and with the horizontal hair
reading of 1.60 m on the rod, the vertical angle observed was -7°18'. Determine the
elevation of the line of sight at the instrument point and the elevation of the point on
which the foresight was taken.
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