Code No: R050210103
Set No. 1
II B.Tech I Semester Supplimentary Examinations, February 2008
SURVEYING
(Civil Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . .
1. (a) List out the different accessories of plane table Surveying. Also explain the purpose for which they are used.
(b) State Three point problem in plane Table Surveying and describe how it is solved by Bessel’s method. [8+8]
2. (a) Explain the terms : Check Line, Base Line, Tie Line, and oblique offset.
(b) Find the maximum length of off set so that the displacement on paper from both sources of error does not exceed 0.2 mm given that the offset is measured with an accuracy of 1 in 25 and the scale is 1cm = 50m. [8+8]
3. A dumpy level was set up at C exactly mid way between two pegs A and B 100m apart. The readings on the staff when held on the pegs A and B were 2.250 and 2.025 respectively. The instrument was then moved and set up at a point D on the line BA produced, and 20m from A. The respective staff readings on A and B were 1.875 and 1.670. Calculate the staff readings on A and B to give a horizontal line of sight. [16]
4. The areas enclosed by various contours on the upstream side of a dam are given below. Determination.
(a) the capacity of the reservoir if the full reservoir level (FRL) is 125m.
(b) the elevation of the water surface when the reservoir is half-full. Ignore the volume below R.L. 100m. [8+8]
Contour(m) / 100 / 105 / 110 / 115 / 120 / 125
Area(ha) / 3 / 8 / 10 / 15 / 20 / 25
5. The following lengths and bearings were recorded in running a Theodolite traverse. Determine the omitted observations, the length & bearing of SP. [16]
Line / Length (m) / WCB
PQ / 255 / 140 042
QR / 656 / 350 00’
RS / 120 / 3380 42
SP – –
6. A tacheometer is used to obtain the difference of levels between two points A and B. The instrument is set up at another station C, and the following observations were taken.
Staff / Vertical angle
readings / Stadia
A - / 6030 / 2.815, 3.50,2.130
B - / 8030 / 1.870, 0.990, 0.110
If the R.L of A is 100.0000, determine the R.L of B. also determine the horizontal distance of A from C. Take k=50.0 and C=0.50 ] 1.870, 0.990, 0.110
7. (a) What is meant by degree of curve. Derive its relationship with radius of curve.
(b) If the tangents to a circular curve having 500m radius intersect at an angle of 1200 and the chainage of point of intersection is 1520.5m, calculate the different elements of a simple circular curve. [6+10]
8. (a) How the Geographic Information System is different from traditional cartography?
(b) What is the difference between Raster Data & Vector Data in the context of GIS? How do you convert raster data into vector data? [8+8]
. . . . .
1:Total Question Paper of JNTU-II B.Tech-CE- Surveying -Sup-Feb 08-set no 2
Code No: R050210103
Set No. 2
II B.Tech I Semester Supplimentary Examinations, February 2008
SURVEYING
(Civil Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . .
1. (a) Describe plane Table Radiation method with the help of a neat sketch. Under what circumstances this method is resorted to.
(b) Discuss the advantages and disadvantages of plane table Surveying over other methods of Surveying. [8+8]
2. (a) Explain the procedure of chaining. How will you record the measurements of Chain Survey. Enumerate the points to be kept in view while booking the field notes.
(b) A Survey line BAC crosses a river, A and C being on the near and opposite banks respectively. A perpendicular AD 40m long is set out at A. If the bearings of AD and DC are 380 451 and 2780 451 respectively and the chainage at A is 862m. find the chainage at C. [8+8]
3. A page of a level book was defaced so that the only legible figures were
(a) consecutive entries in the column of R.Ls: 55.565 (B.M) 54.985 (C.P), 55.170,
55.265, 53.670, 53.940(C.P), 52.180, 52.015, 51.480 (CP), 53.145, 54.065 (T.B.M);
(b) Entries in the back sight column in order from the top of page were: 1.545,
2.310, 0.105, 3.360. Recontruct the page as booked and check your work. (Use H.I. method) [16]
4. Determine the volume of earth to the excavated for the plot of land shown in Figure 4. The formation level is 100m use triangular prisms. [16]
5. (a) Differentiate between
i. Transiting and swinging of the telescope.
ii. Face left and face right readings.
iii. Clamp screw and tangent screw.
iv. Telescope normal and telescope inverted.
(b) In a theodolite traversing, the distances are to be measured to a precision of 1 in 15,000. Determine the accuracy measurements. [12+4]
6. (a) What is tacheometry? Describe its uses.
(b) To determine the distance between two points P and Q, and the R.L. of Q, the following observations were made: Height of tacheometer at P=1.480 m Vertical angle at P= + 5020 Staff readings (with staff vertical) = 0.545, 0.905, 1.265 R.L. of P=150.000 m k= 100.00 c=0.0 [6+10]
7. (a) What are the elements of a simple circular curve. Give their relationships.
(b) Two roads meet an angle of 127030 . Calculate the necessary data for setting out a curve of 15 chains radius to connect two straight portions of the road if it is intended to set out the curve by chain and offsets only. Take length of chain as 30m [7+9]
8. Explain about the segments of Global Positioning system? [16]
. . . . .
1:Total Question Paper of JNTU-II B.Tech-CE- Surveying -Sup-Feb 08-set no 3Code No: R050210103
Set No. 3
II B.Tech I Semester Supplimentary Examinations, February 2008
SURVEYING
(Civil Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . .
1. (a)Explain clearly the points of difference between the prismatic compass and Surveyor’s compass.
(b) What are the sources of errors in compass Surveying and what precautions are to be taken to eliminate them. [8+8]
2. (a) Explain the terms : Check Line, Base Line, Tie Line, and oblique offset.
(b) Find the maximum length of offset so that the displacement on paper from both sources of error does not exceed 0.2 mm given that the offset is measured with an accuracy of 1 in 25 and the scale is 1cm = 50m. [8+8]
3. (a) What do you understand by “leveling”? What are its objects? [8]
(b) With the help of a neat sketch explain the following terms:
i. Level surface
ii. Level line
iii. Horizontal plane
iv. Horizontal line [2×4=8]
4. The perimeter of a figure is traversed clock wise with the anchor point inside and with the tracing area so set that one revolution of the roller measured 100 sg.cm. on the paper. The initial and final readings are 2.828 and 9.836 respectively. The zero mark of the disc passed the fixed index mark twice in the reverse direction. The area of the zero circle is found to be 2352 sg.cm. find the area of the figure. [16]
5. (a) Differentiate between
i. Transiting and swinging of the telescope.
ii. Face left and face right readings.
iii. Clamp screw and tangent screw.
iv. Telescope normal and telescope inverted.
(b) In a theodolite traversing, the distances are to be measured to a precision of
1 in 15,000. Determine the accuracy measurements. [12+4]
6. A tacheometer is used to obtain the difference of levels between two points A and B. The instrument is set up at another station C, and the following observations were taken.
Staff / Vertical angle / Stadia readings
A / -6030' / 3.50, 2.815, 2.130
B - / -8030' / 1.870, 0.990, 0.110
If the R.L of A is 100.0000, determine the R.L of B. also determine the horizontal distance of A from C. Take k=50.0 and C=0.50 [16]
7. (a) Why are the curves provided. Explain different types of curves with neat sketches.
(b) Two straights intersect at a chainage of 3500.5m with an angle of intersection
of 1560. These two straights are to be connected by a simple circular curve of 200m radius. Calculate the data necessary by the method of offsets from the chords produced with a peg interval of 20m. Explain the procedure to set out the curve. [7+9]
8. (a) What is Geodetic Surveying? How it is different from Plane surveying.
(b) Explain the importance of electronic surveying in the field of surveying.[8+8]
. . . . .
1:Total Question Paper of JNTU-II B.Tech-CE- Surveying -Sup-Feb 08-set no 4
Code No: R050210103
Set No. 4
II B.Tech I Semester Supplimentary Examinations, February 2008
SURVEYING
(Civil Engineering)
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
. . . . .
1. (a) Define Surveying. Explain its importance for civil Engineers.
(b) What is meant by Reconnaissance Survey.
(c) A Chain was tested before starting a survey and was found to be exactly 30m. At the end of the Survey, it was tested again and found to measure 30.10m. The area of the plan of the field drawn to a sale of 1cm = 20m was 160 squarecentimeters. Find the true area of the field in square metres. [5+3+8]
2. (a) Define Dip, Magnetic Declination, Azimuth, Isogonic Lines.
(b) The following bearings are observed with a compass. Where do you suspect local attraction. Find the correct bearings.
Line / F.B / B.B
AB / 74o00' / 254o00'
BC / 91o00 ' / 271o00'
CD / 166o00' / 343o00'
DE / 177o00' / 0o00'
EA / 189o00' / 9o00'
[8+8]
3. Name the different types of levels. Describe the Dumpy level with the help of a neat sketch. [16]
4. Calculate the area of a figure from the following readings recorded by the planimeter with the anchor point outside the figure
Initial reading = 9.918
Final reading = 4.254
Multiplying constant M = 100sq.cm
Constant of the instrument: C = 23.521
It was observed that the zero mark on the dial passed the index once in the anticlock wise direction. [16]
5. (a) Differentiate between
i. Transiting and swinging of the telescope.
ii. Face left and face right readings.
iii. Clamp screw and tangent screw.
iv. Telescope normal and telescope inverted.
(b) In a theodolite traversing, the distances are to be measured to a precision of 1 in 15,000. Determine the accuracy measurements. [12+4]
6. (a) Explain different systems of tacheometry and discuss their relative merits.
(b) The vertical angles to vanes fixed at 1.525 m and 2.925 m above the foot of the staff held vertically at a station A, were +4015’ and +5030’, respectively, Determine the horizontal distance and reduced level of A if the height of the instrument axis is 140 m above datum. [8+8]
7. (a) What is a compound curve. If in a compound curve, the direction of the two straights and one radius are known, deduce the formula for other radius.
(b) Tabulate the necessary data to set out a right handed simple circular curve of 600m radius to connect two straights intersecting at a chainage of 3605m by Rankine’s method of deflection angles. The angle of deflection of the curve is 250 and the peg interval is 30m. [7+9]
8. (a) Define geographic information system and describe the relationship between traditional analog map and Geographic Information System.
(b) Suggest possible users of a GIS and how it might benefit them. [8+8]
. . . . .