A transit with stadia interval factor of 100.8 was set up at point C on the line between points A and B. The following readings were observed: HAIR READINGS ROD VERTICAL ANGLE UPPER MIDDLE LOWER A +15.25 1.972 1.854 1.732 В -09.07 1.330 1.175 1.010 If the distance from the instrument to the focus is 0.38m, determine the following: a) Horizontal distance between A and B. b) Difference in elevation between A and B.

Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter14: Highway Surveys And Location
Section: Chapter Questions
Problem 12P
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A transit with stadia interval factor of 100.8 was set up at point C on the line between
points A and B. The following readings were observed:
HAIR READINGS
ROD
VERTICAL ANGLE
UPPER
MIDDLE
LOWER
A
+15.25
1.972
1.854
1.732
-09.07
1.330
1.175
1.010
If the distance from the instrument to the focus is 0.38m, determine the following:
a) Horizontal distance between A and B.
b) Difference in elevation between A and B.
Transcribed Image Text:A transit with stadia interval factor of 100.8 was set up at point C on the line between points A and B. The following readings were observed: HAIR READINGS ROD VERTICAL ANGLE UPPER MIDDLE LOWER A +15.25 1.972 1.854 1.732 -09.07 1.330 1.175 1.010 If the distance from the instrument to the focus is 0.38m, determine the following: a) Horizontal distance between A and B. b) Difference in elevation between A and B.
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