The two-peg test is used to determine if the line of sight of the telescope is parallel to the axis of the bubble tube. A tilting level is set up halfway between points A and B and rod reading on both points are 1.969 and 2.161 m respectively. The level is then set up 1.50 m away from A along the extension of line AB and 53.50 from B. Then rod readings on A and B were recorded as 1.554 m and 1.728 m, respectively. Determine if the line of sight is inclined downward or upward and the amount by which the horizontal cross hair should be moved to adjust the line of sight.

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: definition of a datum in seismic reflection Choose one: a. a level equal to the mean-sea level b.…

A: ANS  :    ALL OF THE OPTIONS ARE TRUE Mean Sea Level (MSL), a standard global datum for measuring…

Q: 7. A horizontal collimation test is performed on an automatic level. With the instrument setup at…

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Q: A tilting level is set up with the eyepiece vertically over a peg A (fig.). The height from the top…

A: Line of collimation: The imaginary line passing through the center of the eyepiece, center of the…

Q: ROD HAIR READINGS POSITION UPPER MIDDLE LOWER Rod held at A 1.327m 1.171m 1.011m Rod held at B…

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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 taken from the peg method of adjustment. Instrument at 1 Instrument at 2 Rod…

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Q: 3. The upper and lower stadia hair readings on a stadia rod held at station B were observed as 4.50m…

A: S3 = 4.50m S1 = 1.35m K = 99.75 Height of instrument above A = 1.52m S2 = 2.5m θ = 25°15'   To…

Q: ween two points, A and B is [400+(1.79*10)]m, and these are established along the same direction…

A: Given:- A and B is [400+(1.79*10)]m To find:- The subtended angle read on a subtense bar held at A…

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 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: If you need high precession you must increase the number of observations  Select one: True False

A: to find  you need high precession you must increase the number of observation

Q: 50KN 31 2m B 1.51 A 2m 31 25kN/m 2m ////////// 6m

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Q: A tacheometer was setup at station P and observations were taken on a staff held at Q and R.…

A: Given data,

Q: Find out the deflection angles from the following observations Lines AB BC Bearing N 42° 20' E N 30°…

A: Given data  Angle at A for line AB (θAB) =N42°20'E Angle at B for line BC (θBC)  = N30°00'E  Find…

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

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A: Compensator accuracy = ±0.3 '' Length of line = 2199 m Reading error = ± 1 mm/km Inclined…

Q: Determine the tilt of the instrument from the following set of measurements of a two peg test over…

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Q: Sample Problem 2: Find the deflection value and change in slope at point B using double integration…

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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: A theodolite was set up at a station P. The angle of depression to vane 2 m above the foot of a…

A: Given- R.L of P=433.05 m, Staff reading at P=2.905 m, Distance between stations = 20 m, It is needed…

Q: A line of levels is run from BM1 to BM2 that is 8 km long. Elevation of BM1 and BM2 was found out to…

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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: Find out the deflection angles from the following observations Lines AB BC Bearing N 42° 20' E N 30°…

A: Deflection angle=42°20'-30°00'                              =12°20' L

Q: Find out the deflection angles from the following observations Lines AB BC Bearing N 42° 20' E N 30°…

A: Given data in question  Bearings  To find out  Deflection angle

Q: A 12 m Zoom image 110.7 332.7 20 kN/m В П -12 m 250 к Пс 4 m

A:

Q: a) In the process of taking a rod reading, one can eliminate parallax mathematically. Parallax is…

A: (a) False The parallax can be eliminated by two steps, they are Focusing the eyepiece, and Focusing…

Instruments for Surveying

Surveying is the practice that determines the relative three-dimensional positions of many different points on the earth’s surface. There are various instruments used in Surveying like Theodolites, Total station, Tripod stands, Plane table, etc. for measuring horizontal angle, vertical and sloping angle, which are very useful for giving accurate and precise measurement.