A stadia measurement was undertaken with a theodolite having an internal focusing telescope and stadia interval factor of 98.8. When a backsight was taken on a turning point whose elevation is 205.62 m, the rod interval observed was 1.94m; and with the horizontal hairs set at 1.50 m on the rod, the vertical angle readingwas +13⁰45’. For a foresight to a control point, the rod intercept was 1.17 m; andwith the horizontal hair reading of 1.60 m on the rod, the vertical angle observedwas -7⁰18’. Determine the elevation of the line of sight at the instrument point and the elevation of the point on which the foresight was taken.

Q: 5) It is desired to determine the height of point B using point A whose height is 650.24 m. By…

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Q: Questiore The staff readings, taken with a tacheometer, are 0.850m, 1.170m, and 1.525 m. Determine…

A: Given data- Staff readings = 0.850 m, 1.170 m & 1.525 m, Constants K=100 & C=0.20 m, RL of…

Q: A Tachometer is set up at an intermediate point on a survey line PQ and the following obser were…

A: i) Introduction : Tacheometry's main principle is based on the isosceles triangle's basic principle.…

Q: langulation): Two stations B and C were observed from a theodolite set up at station A and following…

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Q: During testing of a dumpy level, the following observations were taken:- Instrument at A B Staff…

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Q: The following data were obtained by stadia observation: vertical angle, +12deg 30min; upper stadia…

A: A total station is an optical instrument normally used in construction, surveying, and civil…

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: Q2) the following table represents the fleld data for topographie surveying by the radiation method…

A: Solution:

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

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Q: .(b) If the sensitivity of the bubble tube of a level is 30 of are per division, determine the…

A: Given data , Sensitivity of the bubble tube = 30" m= 1 Sensitivity of the bubble tube =

Q: 3) A transit (internal focusing) at point A with a stadia interval factor of 100.85 has a middle…

A: Internal focusing theodolite at A with a stadia interval factor k=100.85 reading at middle=1.65 m…

Q: A transit (internal focusing) at point A with a stadia interval factor of 100.85 has a middle…

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Q: 1000KN 4m B. 2m G.S. 2m 2m x 4m 4m SAND Clay eo = 0.8 LL = 60% 6m

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Q: A missile is fired with a launch velocity of 15,000 ft/s at target 1200 miles away. At what angle…

A: Solution:- Given data: Velocity of missile, u=15000 ft/sec Range/Target length,    R=1200 miles…

Q: A stadia measurement was undertaken with a theodolite having an internal focusing telescope and…

A: The vertical distance from a point on the earth's surface. When the height of a point is its…

Q: Problem 5.10 A calibration was made to evaluate the constant of a transit with a focusing interval…

A: NOTE :- As per our guidelines we are supposed to answer first question only. So please repost other…

Q: A stadia measurement was undertaken with a theodolite having an internal focusing telescope and…

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Q: The upper and lower stadia hair readings on a stadia rod held at station B were observed as 4 and…

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Q: Stadia observation yielded the following results: vertical angle, +13°20': top stadia hair reading,…

A: Using tacheometer formulafor horizontal distanceD=kscos2θ+Ccosθfor vertical…

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

A: To find  Earth's curvature and atmospheric refraction correction.

Q: A stadia measurement was undertaken with a theodolite having an internal focusing telescope and…

A: Tachometry is employed to live the lengths of the shortcuts, to test the recorded distances more…

Q: The following data were obtained by stadia observation: vertical angle, + 12deg 51 min; upper and…

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Q: In the two-peg test of a dummy level, the following observations are taken. INSTRUMENT SET UP at M…

A: When at M, HA = 3.415 & HB = 1.365 When at P, HA = 4.127 & HB = 1.861

Q: A stadia measurement was undertaken with a theodolite having an internal focusing telescope and…

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Q: The upper and lower stadia hair readings on a stadia rod held at station B were observed as 3.50 and…

A: Given:- The upper and lower stadia hair readings on a stadia rod held at station B = 3.50 m and 1.00…

Q: The following are the results of the measurement of a survey line between two tripod heads, where…

A: Answer We are given  Slope length = 25.510 m Vertical angle = 6o Temperature = 20 o C Tension = 80 N…

Q: A stadia measurement was undertaken with a theodolite having an internal focusing telescope and a…

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Q: (Alternate Peg Method) In the two-peg test of a dumpy level, the following observations are taken:…

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Q: Which of the following may cause errors in leveling measurement? (Multiple choice) (Multiple choice)…

A: There are many errors in levelling measurement :- From the the given option.

Q: determine: (a) the true bearing of the line fifty years ago (b) the magnetic azimuth of the line…

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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: A benchmark (RL=20.345m) was observed as a backsight with a staff reading of 1.413m. Calculate the…

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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: The following data were obtained by stadia observations: vertical angle is +4°17’, upper stadia hair…

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Q: Which method should a topographer use to measure distance using the method in the image ? A B k k C…

A: Brief concept- The distance can be measured by different methods of surveying. One method is shown…

Control Survey and Geodetic reductions

Control surveys or survey controls are used to establish reference points as a basis for various construction activities. Vertical and horizontal control points are to be established in a control survey to increase accuracy. After establishing the control points, all other types of surveys such as topographic, right-of-way, aerial mapping, construction layout, boundary surveys, and utility mapping can be worked upon so that control networks can be formed. The place from which the observations are made is called a survey station.