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 DimasalangGill ang Humabon Hill are to be constructed so that the line just clears Sikatuna Hill by3.50m, what will be the height of these towers? How high a tower would be required onHumabon Hill alone? On Dimasalang Hill alone?

Answered: Image /qna-images/answer/f8ce868e-36d2-4918-abd2-70eab35c029f.jpg

Answered: 1. INTERVISIBILITY OF STATIONS. It is…

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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Two hills A and C have elevations of 600 m and 800 m respectively. In between A and C is another hill B which has an elevation of 705 m and is located at 12 km from A and 10 km from C. a.) Determine the dearance or obstruction of the line of sight at hill B if the observer is at A so that C will be visible from A. b.) If C is not visible from A, what height of tower must be constructed at C so that it could be visible from A with the line of sight having a clearance of 2 m. above hill B. c.) What height of equal towers at A and C must be constructed in order A, B and C will be intervisible.
It is desired to sight Apayao Hill(elev = 4135.63 m) to Ifugao Hill(elev = 4153.92 m) 6.94 km away. Benguet Hill (elev = 4145.68 m), 3.92 km away, obstructs the line of sight. a) If no tower is to be constructed at Ifugao Hill, What should be the height of the tower to be constructed on the Apayao Hill so that the line of sight will clear the ground at Benguet Hill by 2.50 m. b) If no tower is to be constructed at Apayao Hill, What should be the height of the tower to be constructed on the Ifugao Hill so that the line of sight will clear the ground at Benguet Hill by 2.50 m.
It is desired to sight from Dimasalang Hill (elev = 196.85 m) to Humabon Hill (elev = 198.15 m) 40 km away. Sikatuna Hill (elev = 197.65 m), 2.2 km away, apparently obstructs the line of sight. If towers of equal height on Dimasalang Hill and Humabon Hill are to be constructed so that the line just clears Sikatuna Hill by 3.50 m, what will be the height of these towers?
Two hills A and Chave elevations of 600 m and 800 m respectively. In between A and C is another hill B which has an elevation of 705 m and is located at 12 km from A and 10 km from C. a) Determine the clearance or obstruction of the line of sight at hill B if the observer is at A so that C will be visible from A. b) If C is not visible from A, what height of tower must be constructed so that it could be visible from A with the line of sight having a clearance of 2 m above hill B? c) What height of equal towers at A and C must be constructed in order that A, B and C will be intervisible?
Two hills A and C have elevations of 600 m, and 800 m. respectively. In between A and C is another hill B which has an elevation of 705 m and is located at 12 km from A and 10 km from C. Determine the clearance or obstruction of the line of sight at hill B if the observer is at A so that C will be visible from A. [ Select ] If C is not visible from A, what height of tower must be constructed at C so that it could be visible from A with the line of sight having a clearance of 2 m above hill B. [ Select ] What height of equal towers at A and C must be constructed in order that A, B and C will be intervisible. [ Select) 29°C 0
The elevation of a triangulation at station A is 498.50 m. while that of B is 560.75 m. In between mountains A and B is a mountain C having an elevation of 495.00 m. The height of an engineer’s transit placed at A is 1.50 m. If the distance AC is 20 km. and that of BC is 30 km. Determine the height of tower to be constructed at B so that the line of sight will just pass through the mountain C with a clearance of 5.00 m. Show your solutions with Illustrations.
12. INTERVISIBLITY OF STATIONS. Cathedral Hill is on á line between Constable Hill and. Aurora Hill. Cathedral Hill is 6.253 km from the Constable Hill and Aurora Hill is 11.081 km from the Constable Hill. The elevation of the hills are: Constable Hill, 1260.86m; Aurora Hill, 1266.44m3; and Cathedral Hill, 1261.04m. Determine the following: a) Elevation of the line of sight from Constable Hill at the vicinity of Cathedral Hill. b) Height of identical towers to be constructed at Constable Hill and Aurora Hill so that the line of sight will clear Cathedral Hill by 5.0m. c) Height of tower to be constructed on Constable Hill so that the line of sight will clear the ground at Cathedral Hill by 5.0m, if no tower is to be constructed on Aurora Hill. d) Height of tower to be constructed on Aurora Hill so that the line of sight will clear the ground at Cathedral Hill by 5.0m, if no tower is to be constructed on Constable Hill.
1. Two hills A and C have elevations of 610m and 790 m respectively. In between A and C is another hill B which has an elevation of 700 m and is located 10km from A and 13km km from C. a. Determine the clearance or obstruction of the line of sight at hill B if the observer is at A so that C will be visible from A. b. If C is not visible from A, what height if tower must be constructed so that it could be visible from A with the line of sight having a clearance of 1.9m above hill B? c. What height of equal towers at A and C must be constructed in order that A, B, C will be intervisible? 2. C is a point having an elevation of 500m above datum, while A and B are points of unknown elevation. B is in between A and C. By means of an instrument set at 1.3m above B, vertical angles are observed, that to A being - 13°30' and that to C being +9°31'. The horizontal distance AB is 600m and the horizontal distance BC is 1km. Making due allowance for earth's curvature and atmospheric refraction. a.…
Cathedral Hill, with an elevation of 1,138.253 m, in on a line between Aurora Hill and Mirador Hill. It is 15.608 km from Aurora Hill and 12.878 km from Mirador Hill. The elevations of Aurora Hill and Mirador Hill are 1,136.64 m and 1, 152.428 m, resectively. If a line of sight originating from Aurora Hill is directed toward Mirador Hill, determine the following: A) height of the obstruction of the line of sight at Cathedral Hill. ( Select ) B) height of identical towers which could be constructed at Aurora Hill and Mirador Hill so that the line of sight would clear Cathedral Hill by 2.5 m. ( Select ) C) height of tower which could be constructed at Aurora Hill so that the line of sight from Mirador Hill would clear Cathedral Hill by 1.5 m. | Select ] height of tower which could be constructed at Mirador Hill so that the line of sight from Aurora Hill would clear Cathedral Hill by 2.0 m. | Select )
Two hills A and C have elevations of 600m and 800m respectively. In between A and C is another hill B which has an elevation of 705m and is located at 12km from A and 10km from C. 1. Determine the clearance or obstruction of the line of sight at hill B if the observer is at A so that C will be visible from A. 2. If C is not visible from A, what height of tower must be constructed at C so that it could be visible from A with the line of sight having a clearance of 2m above hill B. 3. What height of equal towers at A and C must be constructed in order that A, B, and C will be intervisible.
2. INTERVISIBILITY OF STATIONS. Cathedral Hill is on a line between Constable Hill and Aurora Hill. Cathedral Hill is 6.253km from the Constable Hill and Aurora Hill is 11.081km from the Constable Hill. The elevation of the hills are: Constable Hill, 1260.86m; Aurora Hill, 1266.44m; and Cathedral Hill, 1261.04m. Determine the following: a. Elevation of the line of sight from Constable Hill at the vicinity of Cathedral Hill. b. Height of identical towers to be constructed at Constable Hill and Aurora Hill so that the line of sight will clear Cathedral Hill by 5.0m c. Height of tower to be constructed on Constable Hill so that the line of sight will clear the ground at Cathedral Hill by 5.0m if no tower is to be constructed on Aurora Hill. d. Height of the tower to be constructed on Aurora Hill so that the line of sight will clear the ground at Cathedral Hill by 5.0m, if now tower is to be constructed on Constable Hill.
It is desired to sight from Apayao Hill(elev = 4135.63 m) to Ifugao Hill(elev = 4153.92 m)6.94 km away.Benguet Hill(elev = 4145.68 m),3.92 km away,obstructs the line of sight.a)If towers of identical heights are to be constructed at Apayao Hill and Ifugao Hill so thatthe line of sight will clear the ground at Benguet Hill by 2.50m,the towers should beeach be _________ meters high.

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