Answered: Keeping the instrument height as 1.5 m,…

Keeping the instrument height as 1.5 m, length of staff 4 m, the slope of the ground as 1 in 10, the _m. sight on the down-slope, must be less than_ 1. 15 2. 20 3. 25 4. 30

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.

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1. A stadia measurement obtained the following data; vertical angle is 30°23', and the observed stadia intercept is 2.20m. The stadia interval factor at the measurement used is 95.50m and C is 0.30m if the height of the instrument is 1.62m, and the rod reading is taken at 1.95m. Determine the HD, VD, ID, and DE.
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Two points A and B have an elevation of 12.45 m. and 32.75 m. respectively. If at point A, the inclined sight is 21°25', find the horizontal distance AB. ps. I need answer ASAP?
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Ex-2-: In a levelling process the readings were recorded as following: (1.349, 1.723, 1.522, 1.634, 1.542, 1.773, 1.829 m). If the Level instrument was relocated after the fourth reading and the level of the fourth point was (30 m). Calculate the elevations of the other points and do check your calculations.
Reciprocal leveling gives the following readings in meters from a set up near A: on A, 1.110; on B, 0.887, 0.995, and 0.884. At the setup near B: on B, 1.549; on A, 1.673, 1.670, and 1.666. The elevation of A is 1045.343 m. Determine the misclosure of B. Express your answer to three decimal places and include appropriate units. Misclosure = Submit Part B elevB = μÁ Value Request Answer CHA Value Units Determine the elevation of B. Express your answer to three decimal places and include appropriate units. Units ? ?
The constant K and C for certain instrument were 99.81 and 0 respectively. The ground makes a uniform slope of 9.8% from point A to point B. With the instrument at A and staff at B, readings were taken but due to obstruction in the line of sight, only reading was recorded to be 1.99m if the vertical angle of the instrument was 6.49° and Height of instrument above A was 1.7m. Determine the horizontal distance between A and B.
Differential leveling was performed to run the elevation of BM 3-1 located 30.00 meters to the right of station 3 + 480, to BM 3-2 located 27.50 m to the left of station 3 + 920.00. Calculate the elevations of the points and verify the quality of the annotations in the level book. STATION BS HI FS ELEVATION (m) BM 3-1 1.458 328.954 TP - 1 2.256 2.314 TP - 2 1.382 3.127 TP - 3 3.456 2.171 TP - 4 0.759 1.282 BM 3-2 2.000
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