Cathedral Hill is on a line between Constable Hill and Aurora Hill.Cathedral Hill is 6.235 km from the Constable Hill and Aurora Hill is11.018 km from the Constable Hill. The elevation of the hills are:Conștable HilI, 1260.86 m; Aurora Hill, 1266.44 m; and Cathedral Hill,1261.04 m. Determine the height of identical towers to be constructedat Constable Hill and Aurora Hill so that the line of sight will clearCathedral Hill by 5.0 m.

The elevation is generally the height above the ground or position of height. It is determined by…

Answered: Cathedral Hill is on a line between…

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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The HI of the instrument placed on top of a 50 m high hill is 1.2 m . The top of the water tank located 500 m away was sighted and has an angle of depression of 5 degrees. What is the elevation of the top of water tank? a. Not listed on the given choices b. 7.439 m c. 7.473 m d. 14.944 m e. 4.31 m
Four hills A, B, C and D are in straight line. The elevations are A = 247 m, B = 236 m, C = 314 m D = 396 m respectively. The distances of B, C and D from A are 12 km, 45 km and 60km respectively. Considering the effect of curvature and refraction of the earth. (a) Compute the height of equal towers on A and D to sight over B and C with a 3 m clearance.(b) Compute the elevation of the line of sight at B with the installation of equal heights of tower at A and D.(c) Compute the height of tower at A with a clearance of 3 m at C so that D will be visible from A, if the height of tower at D is 2 m.
Engineer’s Transit was set at a horizontal distance of 175.24 meters from the base of a tower. The angle reads 280 45’ at the top of the tower. If the backsight reading from a reference benchmark of elevation 30.00 meters above mean sea level is 1.68 meters, find the elevation of the top of tower.
The two points 1 and 2 are spaced at a horizontal distance of 243.22 m. The elevation of point 1 is 911.46 m and that of point 2 is 903.37 m. Then, the gradient from point 1 to point 2 in percent % is : Finish attempt ... Jump to... Surveying Lecture 07-03-... 2.
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 ? ?
Points A and B are 100 m. apart horizontally and are of the same elevation as the foot of a building. The angles of elevation of the top of the building from A and B are 21 and 32 respectively. How far is A fro the building? a) 259.28 m b) 235.56 m c) 243.34 m d) 274.36 m
1. INTERVISIBILITY OF STATIONS. It is desired to sight form Dimasalang Hill (elev. 196.85m) to Humanon Hill (elev. = 198.15m) 40km away. Sikatuna Hill (elev. = 197.65m), 2.2km away, apparently obstructs the line of sight. If towers of equal height on Dimasalang Gill ang Humabon Hill are to be constructed so that the line just clears Sikatuna Hill by 3.50m, what will be the height of these towers? How high a tower would be required on Humabon Hill alone? On Dimasalang Hill alone?
A tall tower was photographed from an elevation of foom above the datum. The radial distance of the top & bottom of the tower from principal points in the photograph are 112-5 mm & 82.4mm. If bottom of towes is at an elevation 250m above the dation then beight of the tower would be
Please help with b, i & ii The slope distance between two stations A and B measured with EDM when corrected for meteorological conditions and instrument constants, is 113.893 m. The heights of the instrument and reflector are 1.739 m and 1.839 m, respectively, above the ground. To measure the vertical angle a theodolite was set up at A, 1.665 m above the ground and a target at B having height above the ground as 1.632 m. The measured angle above the horizontal was + 4°22′18″. Determine a. The horizontal length of the line AB. b. To what precision the slope angle be measured: i. if the relative precision of the reduced horizontal distance is to be 1/100000. ii. if the reduced horizontal distance is to have a standard error of ± 1.8 mm.
Complete the table below. STATION BM1 A B C D E F BM2 BS 1.470 1.967 2.792 2.225 2.209 1.072 HI 368.382 369.414 370.245 Lowest rod reading Station with the Highest BS Lowest Elevation 370.780 370.278 371.138 Highest elev of the line of sight Station with the highest elevation (excluding BM1 & BM2) FS 1.200 1.136 1.082 3.400 0.212 1.204 ELEV 367.182 368.278 369.163 368.555 368.069 369.934
The top of a 95.6m high building 1.25km away was sighted through a total station. The height of the total station above mean sea level is 120.89m. If the recorded vertical angle is 9°45', determine the elevation (m) of the base of the building with respect to the mean sea level. Round your answer to 3 decimal places.

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