Code No: R050210103 Set No. 1 II B.Tech I Semester ... B.Tech I Semester Supplementary Examinations, February ... between chain Survey and compass ... I Semester Supplementary Examinations, February 2007

Download Code No: R050210103 Set No. 1 II B.Tech I Semester ...  B.Tech I Semester Supplementary Examinations, February ... between chain Survey and compass ... I Semester Supplementary Examinations, February 2007

Post on 15-Mar-2018

214 views

Category:

Documents

2 download

TRANSCRIPT

<ul><li><p>Code No: R050210103 Set No. 1</p><p>II B.Tech I Semester Supplementary Examinations, February 2007SURVEYING</p><p>(Civil Engineering)Time: 3 hours Max Marks: 80</p><p>Answer any FIVE QuestionsAll Questions carry equal marks</p><p>1. (a) Describe plane Table intersection method with the help of neat sketches. Un-der what circumstances this method is resorted to.</p><p>(b) Explain the various sources of errors in plane Table Surveying. [8+8]</p><p>2. (a) Explain the terms : Check Line, Base Line, Tie Line, and oblique offset. [8]</p><p>(b) Find the maximum length of offset so that the displacement on paper fromboth sources of error does not exceed 0.2 mm given that the offset is measuredwith an accuracy of 1 in 25 and the scale is 1cm = 50m. [8]</p><p>3. Explain the following principal methods of levelling:</p><p>(a) Barometric levelling</p><p>(b) Trigonometric levelling</p><p>(c) Spirit levelling [16]</p><p>4. The areas enclosed by various contours on the upstream side of a dam are givenbelow. Determination.</p><p>(a) the capacity of the reservoir if the full reservoir level (FRL) is 125m. [8]</p><p>(b) the elevation of the water surface when the reservoir is half-full. Ignore thevolume below R.L. 100m. [8]</p><p>Contour(m) 100 105 110 115 120 125Area(ha) 3 8 10 15 20 25</p><p>5. (a) What do you understand by Temporary Adjustment? Describe in brief thevarious temporary adjustments of a Theodolite. [8]</p><p>(b) Discuss the procedure of measuring a horizontal angle with a theodolite [8]</p><p>6. Differentiate between the fixed hair method and the movable hair method. Discussthe advantages and disadvantages of each method [16]</p><p>7. (a) What is a compound curve. If in a compound curve, the direction of the twostraights and one radius are known, deduce the formula for other radius. [7]</p><p>(b) Tabulate the necessary data to set out a right handed simple circular curve of600m radius to connect two straights intersecting at a chainage of 3605m byRankines method of deflection angles. The angle of deflection of the curve is250 and the peg interval is 30m. [9]</p><p>1 of 2</p></li><li><p>Code No: R050210103 Set No. 1</p><p>8. (a) What is Geodetic Surveying? How it is different from Plane surveying [8]</p><p>(b) Explain the importance of electronic surveying in the field of surveying [8]</p><p>2 of 2</p></li><li><p>Code No: R050210103 Set No. 2</p><p>II B.Tech I Semester Supplementary Examinations, February 2007SURVEYING</p><p>(Civil Engineering)Time: 3 hours Max Marks: 80</p><p>Answer any FIVE QuestionsAll Questions carry equal marks</p><p>1. (a) What is local attraction. How is it detected and removed.</p><p>(b) What do you understand by closing error of a compass traverse. Show howcan it be adjusted by graphical method. [8+8]</p><p>2. (a) What are the essential differences between chain Survey and compass Sur-vey. Under what circumstances compass Survey is preferred to other types ofSurveys.</p><p>(b) Find which station is free from local attraction and work out the correctbearings.</p><p>Line F.B B.BAB 191o45 13o0000</p><p>BC 39o30 22200030</p><p>CD 22o15 20003000</p><p>DE 242o45 6004500</p><p>EA 330o15 14704500</p><p>[8+8]</p><p>3. The following observations were made during the testing of a dumpy level:</p><p>Instrument at Staff reading onA B</p><p>A 1.702 2.244B 2.146 3.044</p><p>Distance AB=150m Is the instrument in adjustment? To what reading shouldthe line of collimation be adjusted when the instrument was at B? If the R.L ofA=432.052, what should be the R.L. of B.</p><p>[16]</p><p>4. What are the methods of measuring volume ? Explain the measurement of volumefrom spot level. [16]</p><p>5. The table below gives the lengths and bearings of the lines of a traverse ABCDEA,the length and bearing of EA having been omitted. Calculate the length andbearing of the line EA. [16]</p><p>1 of 2</p></li><li><p>Code No: R050210103 Set No. 2</p><p>Line Length (m) BearingAB 204.0 87030</p><p>BC 226.0 20020</p><p>CD 187.0 28000</p><p>DE 192.0 210030</p><p>EA ? ?</p><p>6. (a) What is tangential system of tacheometry? What are its advantages anddisadvantages over the stadia method? [8]</p><p>(b) Determine the constants of a tacheometer if for the line of collimation hori-zontal, the staid readings for he staff held at 25 m and 50 m are respectively1.900, 1.410 and 2.22, 1.23 [8]</p><p>7. (a) Draw a neat sketch of a simple circular curve and represent different elementsof it. [4]</p><p>(b) Establish the relation = 1718.9CR</p><p>minutes [4]where = deflection angle of the chord; C = length of chord. R= Radius ofthe curve,</p><p>(c) Calculate the perpendicular offsets at 20m intervals along the tangents to setout first five pegs of a simple circular curve of 250m radius. [8]</p><p>8. (a) What is Geodetic Surveying? How it is different from Plane surveying [8]</p><p>(b) Explain the importance of electronic surveying in the field of surveying [8]</p><p>2 of 2</p></li><li><p>Code No: R050210103 Set No. 3</p><p>II B.Tech I Semester Supplementary Examinations, February 2007SURVEYING</p><p>(Civil Engineering)Time: 3 hours Max Marks: 80</p><p>Answer any FIVE QuestionsAll Questions carry equal marks</p><p>1. (a) Describe plane Table intersection method with the help of neat sketches. Un-der what circumstances this method is resorted to.</p><p>(b) Explain the various sources of errors in plane Table Surveying. [8+8]</p><p>2. (a) Explain the terms : Check Line, Base Line, Tie Line, and oblique offset. [8]</p><p>(b) Find the maximum length of offset so that the displacement on paper fromboth sources of error does not exceed 0.2 mm given that the offset is measuredwith an accuracy of 1 in 25 and the scale is 1cm = 50m. [8]</p><p>3. (a) What aretemporary adjustments?</p><p>(b) Name the temporary adjustments of a level? Briefly explain them. [6+10]</p><p>4. What are the methods of measuring volume ? Explain the measurement of volumefrom spot level. [16]</p><p>5. The following lengths and bearings were recorded in running a Theodolite traverse.Determine the omitted observations, the length &amp; bearing of SP. [16]</p><p>Line Length (m) WCBPQ 255 140 042</p><p>QR 656 350 00</p><p>RS 120 3380 42</p><p>SP </p><p>6. (a) Derive an expression for the horizontal distance of a vertical staff from atacheometer, if the line of sight is horizontal. [8]</p><p>(b) The following readings were taken with a vernier theodolite on to a verticalstaff</p><p>Horizontal distance Stadia readings46.20 m 0.780, 1.010, 1.24061.20 m 1.860, 2.165, 2.470</p><p>Calculate the Tacheometric constants [8]</p><p>7. (a) Describe the method of setting out a simple circular curve using two Theodolites.-[8]</p><p>(b) Two roads meet at angle of 127030. Calculate the necessary data for settingout a curve of 450m radius to connect two straight portions of the road if aTheodolite is available. [8]</p><p>1 of 2</p></li><li><p>Code No: R050210103 Set No. 3</p><p>8. (a) What is Geodetic Surveying? How it is different from Plane surveying [8]</p><p>(b) Explain the importance of electronic surveying in the field of surveying [8]</p><p>2 of 2</p></li><li><p>Code No: R050210103 Set No. 4</p><p>II B.Tech I Semester Supplementary Examinations, February 2007SURVEYING</p><p>(Civil Engineering)Time: 3 hours Max Marks: 80</p><p>Answer any FIVE QuestionsAll Questions carry equal marks</p><p>1. (a) Give a detailed classification of Surveys.</p><p>(b) A line 3.2 km long is measured with a steel tape which is 20m under no pullat 30oC. The tape in section is 1/8 cm wide and 1/20 cm thick. If one half ofthe line is measured at a temparature of 40oc and the other half at 50oC andthe tape is attached to a pull of 200N, find the corrected total length of theline given the coefficient of expansion is 11.5 106 per degree C, weight oftape per Cubic cm of steel = 0.77504N, and E = 2.1 105N/mm2. [7+9]</p><p>2. (a) Explain the different methods of plotting a compass traverse.</p><p>(b) The following are the bearings of a closed traverse. Find out which of thestations are affected by local attraction. Tabulate the corrected bearings oflines.</p><p>Line F.B B.BAB N50030W S47030EBC N54000E S53000WCD S3030E N4000WDE S41030E N41030WEA S79030W N78000E</p><p>[8+8]</p><p>3. With the help of neat sketches explain the following terms:</p><p>(a) Mean sea level</p><p>(b) Bench mark</p><p>(c) Line of collimation</p><p>(d) Bubble line [44=16]</p><p>4. A railway embankment 400m long is 12m wide at the formation level and has theside slope 2 to 1. The ground levels at every 100m along the centre line one:</p><p>Distance: 0 100 200 300 400R. L. 204.8 206.2 207.5 207.2 208.3</p><p>The formation level at Zero chainage is 207 and the embankment has a risinggradient of 1 in 100. The ground is level across the centre line. Calculate thevolume of earthwork. [16]</p><p>1 of 2</p></li><li><p>Code No: R050210103 Set No. 4</p><p>5. The table below gives the lengths and bearings of the lines of a traverse ABCDEA,the length and bearing of EA having been omitted. Calculate the length andbearing of the line EA. [16]</p><p>Line Length (m) BearingAB 204.0 87030</p><p>BC 226.0 20020</p><p>CD 187.0 28000</p><p>DE 192.0 210030</p><p>EA ? ?</p><p>6. Determine the gradient from a point A to a point B from the following observationsmade with a tacheometer fitted with an anallactic lens. The constants of theinstruments was 100 and the staff was held vertically: [16]</p><p>Inst.Station Staff point Bearing Verticalangle Staff readingP A 1340 +10032 13.60, 1.915, 2.470</p><p>B 2240 +506 1.065, 1.885, 2.705</p><p>7. (a) List out different methods of setting out simple curves. Explain Rankinesmethod of deflection angles for setting out a simple curve. [8]</p><p>(b) Calculate the offsets at 15m intervals along the tangents to set out a simplecircular curve of 300m radius. [8]</p><p>8. (a) What are the components of a GIS and give a brief account of them [8]</p><p>(b) Give an account of sources of GIS Data [4]</p><p>(c) What are the Spatial data models accounted in GIS and describe of eachmodel [4]</p><p>2 of 2</p></li></ul>

Recommended

View more >