The top of the lighthouse is observed from point M at 25.53° angle of elevation and simultaneously frompoint N 1720m from point 2 at 53.75° elevation. Find the height of the lighthouse.Rules:1. For significant figures and rounding off numbers, provide only the numerical value for the answer.2. For all the computed values with decimals, use four (4) digits after the decimal.

Answered: The top of the lighthouse is observed…

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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Do not include the unit in writing the answer. Express all values up to 3 decimal places. You can directly compute in your calculator and just write the formula used on your solution paper. Use capital letter in writing the station. If the value is negative, include the sign without space in between. If the number is positive, do not include the positive sign. Complete the table below. Apply the appropriate traverse adjustment. Error tolerance : 0.01 m LINELAT (m) DEP (m) Correction Adiusted LAT (m) DEP (m) LAT (m) DEP (m) PA 37.000 33.001 AN -15.000 32.000 NP |-25.001-63.000
Problem 2. Calculate the area of the closed traverse or field in square meters (using coordinate method). -2 . 12 -10 8 6 2 A (4,10) D (2,2) 2 4 6 8 B (9,7) 10 C (11,2) 12 14
When using an optical instrument, such as an Automatic Level, you should focus on: Question 11Select one: A. The image B. The cross hairs Incorrect C. The mirrors D. Both a and b
Problem 2. Calculate the area of the closed traverse or field in square meters (using coordinate method). 4 -2 12 -10 -8 6 4 ---2 -2 A (4,10) p (2,2) 2 4 6 8 1 B (9,7) C (11,2) 10 12 14
ANSWER ONLY SUBPARTS E, F AND G.
UPVOTE WILL BE GIVEN! Write the solutions legibly. Answer in 2 decimal places. FUNDAMENTALS OF SURVEYING The length intercepted on the stadia rod is 3.6m and the line of sight makes an angle of 3° 45' with the horizontal. Find the distance, in m, from the center of the instrument to the rod, if the stadia constant is 0.3 and the stadia interval factor is 100.
O Problem 4 Given in the tabulation below are the observed forward and backward bearings of an open compass traverse. Plot the traverse and adjust the forward and backward bearing of each course. Tabulate answers and show accompanying computations. LINE AB BC CD DE EF FG LENGTH 60 m 40 80 63 70 65 OBSERVED BEARINGS FORWARD S 33° 38' W S 25° 32' E N 42° 15' E N 71° 14' E S 15° 10' E N 80° 38' W BACKWARD N 34° 15' E N 26° 31' W S 42° 15' W S 72° 43' W N 16° 11' W S 81° 15'E CORRECTED BEARINGS FORWARD BACKWARD
18. The angle of elevation of point A, on a pole is measured as 1° and the angle of depression of point B on the same pole is measured as 2°, when measured from a location using a theodolite. Calculate and write the horizontal distance of the pole from the instrument station, if the elevation of point B is 102 m and length of AB is (10+Z) m. Enter your answer take , z = 8
Q1). The following consecutive readings were taken along a straight line from station (11+090) to station (12+015). The instrument has been changed after third, fifth, eighth and welfth readings. The readings are as bellows: (3 0.68 0.680, 1.455, 1.855, 2.330, 2.885, 3.380, 1.055, 1.680, 2.265, 3.540, 0.835, 0.945, 1.530 and 2.250, first and last point are a bench marks having elevations 50.25m and 50.81 m respectively. 44.8 1- Draw page of level book and enter the above data. 2- Find cleve on of pointe hy height of instrument method. 3- Check your calculation. 4- Determine the gradient of the line joining the first and last point. 5- Determine loop closure and adjust calculated elevations. -5.408
Given in the tabulation below are the observed forward and back bearings of an open compass traverse. What is the Adjusted Forward Bearing of Line DE?Take:X = N 11°40' E

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