A differential survey was conducted from BM4 to BM5 covering a distance of 8 km. BS and FS distance every set-up average 200m. The designated computer has calculated that the average backsight reading is 2.600 meters. However, it was noted that every time this reading had been taken, the rod is inclined sideways from the vertical by 6°. Determine the correct elevation of BM5

Q: n a levelling work, sum of the Back Sight (B.S.) and Fore Sight (F.S.) have been found to be 3.085 m…

A: Given data: The sum of back sights, ∑BS=3.085 m The sum of fore sights, ∑FS=5.645 m. Reduced level…

Q: The survey works were carried out using the leveling device and took 0.895, 1.305, 2.800, 1.960,…

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Q: The backsight to a BM is 3.125 m and the FS from the same instrument set up is 3.625 m. If the…

A: Given Data,   Distance from level to BM = 3850 m  Distance from level to TP = 4714.05 mCalculate the…

Q: In surveying of differential leveling runs from BM10 to BM11 at a distance of 7.5km. It was observed…

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Q: A line of levels is run from BM1 to BM2, which is 12 km long. Elevation of BM1 was found out to be…

A: Elevation of BM1=100m Elevation of BM2 =125.382m To find corrected elevation of BM2

Q: A horizontal collimation test is performed on an automatic level and the collimation error of the…

A: Given data:- Error found in instrument is 0.001 m distance between the two point is 100 m Observed…

Q: Q 7: It is required to project a horizontal circular curve that connects the first two roads AB and…

A: Horizontal projection of the curve  will be  equal to the length of the longest chord   AC

Q: . An angle was measured six times, the observed values being 49°23'00", 49°23'20", 49°22'40",…

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Q: The following consecutive staff readings were taken with level and 5m staff at 70 m interval. The…

A: Solution: Given: Station BS IS FS 1 1.25     2   2.187   3     2.05 4 3.12     5   1.57…

Q: 13 Differential leveling runs from BM10 to BM11 at a distance of 7.5 km. It was observed that the…

A: Solution:-Given,Distance=7.5km=7500mThe leveling rod was inclined=6°The average BS…

Q: A trigonometric leveling was employed to determine the elevation of CGY-2022. The instrument was…

A: To find Elevation of CGY 2022

Q: A differential leveling circuit began on BM Hydrant (orthometric height 5869.31 ftft) and closed on…

A: BM Hydrant = 5869.31 ft BM Rock = 5830.03 ft

Q: A stadia rod held at point B was observed from station A (elev A = 210.70m) using an automatic…

A:

Q: Q2: The following consecutive readings were taken with a level and a 4 m leveling staff on a…

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Q: The readings from a level instrument are booked from a survey along the line collimation method. If…

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Q: 1. For the given set of data of differential leveling as shown in the tabulation: Station Backsight…

A: Given  Levelling table

Q: Using a 1 second theodolite the following clocl traverse. What is the angular closing error and 62°…

A: The traverse angle is given as follows: 163°27' 36" 324°18' 22" 62°39' 27" 330°19' 18" 181° 09' 15"…

Q: Question 2.6 The following consecutive readings were taken with dumpy level and 4 m levelling staff…

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Q: Problem 3: Tunnel Surveying Objective: To prepare survey computations from preliminary survey of a…

A: Solution Data given is from the preliminary survey of the route of the traverse for the tunnel. When…

Q: The survey works were carried out using the leveling device and the following readings were taken:…

A:

Q: Line Length(m) Azimuth DA 500 290° DC 2000 90° СВ 1000 90° AB ? ? Calculate the length and the…

A: The latitude of the line is defined as the project of a line along the north-south direction.…

Q: A differential leveling circuit began on BM Hydrant (orthometric height 5869.31 ft) and closed on BM…

A: BM Hydrant BM Rock Readings (in feet) given in the order taken are, 2.68 (+S) on BM Hydrant, 5.59…

Q: Complete the following level notes. Show your detailed solution and checking.   Differential…

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Q: While leveling across a river, the staves readings held at (R) and (S) from the instrument stationed…

A: Reciprocal levelling is used to determine the true difference in elevations of two points that are…

Q: A differential leveling circuit began on BM Hydrant (orthometric height 5869.31 ft) and closed on BM…

A: BM Hydrant =5869.31 ftBM Rock (orthometric height 5830.03 ft). Readings  2.28 (+S) on BM Hydrant,…

Q: A reciprocal leveling is observed across a wide river and the reciprocal level readings were taken…

A: Given:- The reciprocal level readings were taken between points A and B  When the instrument is at…

Q: Starting at point A and passing thru TPI and TP2 differential leveling was carried out between…

A: Levelling is a process to obtain a horizontal surface for the accurate measurement and survey of an…

Q: 1. For the given set of data of differential leveling as shown in the tabulation: Station Backsight…

A: tabulation data of differential leveling is given and it is asked in the question to determine the…

Q: The following consecutive readings were taken with a leveling instrument at intervals of 25 m.…

A: There are two methods of solving this problem. 1.Height of instrument method (HI method) 2.…

Q: 2) Given the following data: Table 1: Differential Leveling Observations Station A ΤΡΙ B TP2 A…

A: To Determine :- a. What is the loop misclosure? b. What is the corrected elevation of point B using…

Q: 4. For the given schematic route of a differential leveling, backsights and foresights on series of…

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Q: Situation; The angles about polnt have the following observed values: 87°0750", 125 1720", and…

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Q: A dumpy level is setup at one end of a line 120m long for the purpose of determining the…

A: The stadia interval factor is given by, k=Ds where D = horizontal distance s = stadia intercept…

Q: An elevation must be established on a benchmark on an island that is 2536.98 ft from the nearest…

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Errors in surveying

An error in surveying is defined as the difference between two or more values of an identical quantity. However, the estimates are never accurate and there will always be a degree of variability regardless of the research tool or method used. These differences are known as errors that need to be reduced or eliminated to maintain certain levels of accuracy. Even if you carefully follow the prescribed test procedures, the considerations may contain errors.