CEFUNDAMBATTERY REVIEWSITUATION: From a building across, the angle of depression ofthe base of the front edifice is 23.50 and the angle ofelevation of its top is 52.780. The height of observation is14 m.What is the height of the edifice?How far is the building from the said edifice?What is the angle of elevation of the top of the edifice fromthe foot of the building?

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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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Elevation of top Q of a hill, a staff of 2 m height was erected and observations were made from stations P and R, 60 m apart. The horizontal angle measured at P between R and the top of the flag staff was 60°30' and that measured at R between the top of the flag staff and P was 68 18'. The angle ofelevation to the top of the flag staff from P = 10°12' and from R = 10°48'. Staff readings on BM when instrument was at P = 1.965 m and that with instrument at R = 2.055 m. Calculate the elevation of the top of the hill if reduced level of BM=100m?
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
PROBLEM NO. 2 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 is 11.018 km from the Constable Hill. The elevation of the hills are: Constable Hill, 1260.86 m; Aurora Hill, 1256.44 m; and Cathedral Hill, 1261.04 m. Determine the height of tower to be constructed on Aurora Hill so that the line of sight will clear the ground at Cathedral Hill by 5.0 m, if no tower is to be constructed on Constable Hill. Aluma & Chuak.
From the top of a building, the angle of depression of a point A located due west of the building is 22.5°. From the mid-height of the building, the angle of depression of a point B located due south of the building is 18.5°. A and B are on the same horizontal plane as the base of the building and are 300m apart. How far is the point B from the building? *
Solve for this prob. Formula: H.I. = Elevation of given B.M. + B.S. Elevation of T.P. = H.I. – F.S. Ground Elevation at Centerline Station = H.I. – I.F.S. Error of Closure (e) = SB.S - SF.S. Error of Closure = Elev B.M. – Elev. of the last point
At a point 160V3 feet from a building, and in a horizontal line with its base, the angle of elevation of the top of the building is 30°. What is the height (in feet) of the building? D.
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 is 11.018 km from the Constable Hill. The elevation of the hills are: Constable Hill, 1260.86 m; Aurora Hill, 1266.44 m; and Cathedral Hill, 1261.04 m. Determine the height of tower to be constructed on Constable Hill so that the line of sight will clear the ground at Cathedral Hill by 5.0 m, if no tower is to be constructed on Aurora Hill
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 is 11.018 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 constructed at Constable Hill and Aurora Hill so that the line of sight will clear Cathedral Hill by 5.0 m.
Complete the table below. STATION BM1 A с D E F BM2 BS 1.470 1.967 2.792 2.225 2.209 1.072 Highest elev of the line of sight Station with the highest elevation (excluding BM1 & BM2) Lowest rod reading Station with the Highest BS Lowest Elevation HI 368.382 369.414 370.245 370.780 370.278 371.138 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
Find the height of the remote point. (top of the building) (value of y)
A line of levels was run from station A to station B. The leveling was continued to a BM of elevation 40 m. The stadia readings were obtained as follows. What is the elevation of station A? What is the elevation of station B? BS HI FS IFS ELEV REMARKS 1.195 A 0.445 2.370 2.150 0.995 0.720 B 1.465 0.260 2.630 0.905 1.305 40.00 BM Choices: 37.655 m 37.523 m 37,950 m 38.201 m
Given the three-wire leveling note below, find the elevation of BM2 and perform the customary arithmetic check. Sta BM1 TP1 TP2 TP3 BM2 Hair Rgds 1.152 0.935 0.718 1.713 1.440 1.167 2.784 2.350 1.916 0.913 0.730 0.547 Backsight Mean Rgds (#1) (#4) (#7) S (#2) HI (#3) Hair Rgds Foresight Mean Rgds S 1.177 0.899 0.621 1.905 1.537 1.169 1.450 1.177 0.904 2.210 1.714 (#8) (#9) 1.218 (#5) Elev 450.545 (#6) (# 10)

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