A transit with a stadia interval factor of 100.12 was set at C on the line between points A and B, the following stadia readings were observed. (draw the Instrument set up) Stadia Hair Readings (m) Rod Position Vertical Angle Upper (a) Middle (c) Lower (b) Rod Held at A - 50 17' 1.318 1.148 0.978 Rod Held at B + 2° 21 2.048 1.882 1.355 If the stadia constant is 0.29 m determine the following: A. Length of line AB (horizontal). ANSWER: B. If the elevation at B is 76.751m what is the elevation at A. ANSWER:

A transit with a stadia interval factor of 100.12 was set at C on the line between points A and B, the following stadia readings were observed. (draw the Instrument set up) Stadia Hair Readings (m) Rod Position Vertical Angle Upper (a) Middle (c) Lower (b) Rod Held at A - 50 17' 1.318 1.148 0.978 Rod Held at B + 2° 21 2.048 1.882 1.355 If the stadia constant is 0.29 m determine the following: A. Length of line AB (horizontal). ANSWER: B. If the elevation at B is 76.751m what is the elevation at A. ANSWER:

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Instruments for Surveying

Surveying is the practice that determines the relative three-dimensional positions of many different points on the earth’s surface. There are various instruments used in Surveying like Theodolites, Total station, Tripod stands, Plane table, etc. for measuring horizontal angle, vertical and sloping angle, which are very useful for giving accurate and precise measurement.

Question

A transit with a stadia interval factor of 100.12 was set at C on the line between points A and B, the following
stadia readings were observed. (draw the Instrument set up)
Stadia Hair Readings (m)
Rod Position
Vertical Angle
Upper (a)
Middle (c)
Lower (b)
Rod Held at A
- 50 17
1.318
1.148
0.978
Rod Held at B
+ 20 21'
2.048
1.882
1.355
If the stadia constant is 0.29 m determine the following:
A. Length of line AB (horizontal). ANSWER:
B. If the elevation at B is 76.751m what is the elevation at A. ANSWER:

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