A transit with a stadia interval factor of 98.99 was set at C on the line between points A and B, the following stadia readings were observed. (draw the Instrument set up) Rod Position Vertical Angle Stadia Hair Readings (m) Upper (a) Middle (c) Lower (b) Rod Held at A + 60 27’ 3.678 2.491 1.287 Rod Held at B - 40 31’ 2.154 1.618 1.082 If the stadia constant is 0.29 m determine the following: Length of line AB (horizontal). ANSWER: ____________________ If the elevation at B is 782m what is the elevation at A. ANSWER: ___________________

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A transit with a stadia interval factor of 98.99 was set at C on the line between points A and B, the following stadia readings were observed. (draw the Instrument set up)

Rod Position

Vertical Angle

Stadia Hair Readings (m)

Upper (a)

Middle (c)

Lower (b)

Rod Held at A

+ 60 27’

3.678

2.491

1.287

Rod Held at B

- 40 31’

2.154

1.618

1.082

If the stadia constant is 0.29 m determine the following:

  1. Length of line AB (horizontal). ANSWER: ____________________
  2. If the elevation at B is 782m what is the elevation at A. ANSWER: ___________________

 

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