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Government of Karnataka Department of Technical Education DIPLOMA COURSE IN CIVIL ENGINEERING/ CIVIL D’SHIP Third Semester Subject: Surveying - II Hrs/Week:4 Hrs Hrs/Sem:64 Hrs. Weightage Chapter No. of Contents of Marks No: Hours in Exam SECTION-I 1 Levelling - Application 2 Contouring

10 8

25 20

4 10 2

10 25 5

18 5 4 3

45 15 ---

64

145

SECTION-II 3 Areas & Volumes 4 Principles of Theodolite surveying 5 Permanent Adjustment of theodolite SECTION-III 6 Theodolite traversing 7 Miscellaneous Instruments 8 Seminars / Field visit / Innovations Tests TOTAL

DETAILS OF CONTENTS SECTION - I 1

Levelling - Application

1.1 Different types of levelling - fly levelling, check levelling, profile levelling, cross sectioning. 1.2 Plotting of longitudinal and cross section. 1.3 Errors in levelling and precautions to minimise them. 1.4 Setting grade stakes and setting out grades for sewers and connected problems. 2

Contouring

2.1 Concepts of contour and used in contouring, characteristics of contour, uses of contours. 2.2 Methods of contouring. 2.3 Interpolation - arithmetical method only. 2.4 Calculation of Capacity of Reservoirs - simple problems

SECTION -II 3 Areas & Volumes 3.1 Computation of Area of Irregular figures using Trapezoidal & Simpson's rule problems. 3.2 Volumes of Irregular solids- using Trapezoidal & Prismoidal Rule - Problems on Embankment & Cutting - Cross sectioning on Level section & Two level sections - simple problems. 4 Principles of Theodolite surveying 4.1 Component parts, different . 4.2 Fundamental lines of a Theodolite and their relationships 4.3 Temporary adjustment of Theodolite. 4.4 Measurement of horizontal angles by repetition and reiteration method. 4.5 Measurement of deflection angle. 4.6 Measurement of vertical angles. 4.7 Errors in theodolite work. 5 Permanent adjustment of theodolite 5.1 Test & Adjustment of Plate Level. 5.2 Test & Adjustment of Line of Sight. 5.3 Test & Adjustment of Horizontal Axis . 5.4 Test & Adjustment of Altitude Level.

SECTION-III 6. Theodolite traversing 6.1 Traversing with theodolite by included angle method & deflection angel method, 6.2 Checks for closed and open traverse. 6.3 Plotting the traverse by coordinate method. 6.4 Traverse computation-latitude, departure, closing error, balancing the traverse by Bowditch’s rule and Transit rule. 6.5 Problems on omitted measurements. 6.6 Area of a closed traverse. 7 Miscellaneous Instruments i) Abney level ii) Ceylon ghat tracer iii) Pentagraph iv) Planimeter

(Mechanical and digital) 8 Seminars / Field visit / Innovations REFERENCES 1. Surveying & Levelling Part I & Part – II , T.P.Kanetkar & S.V.Kulakarni, Pune Vidyarthi Griha Prakashan 2. Surveying & Levelling Part I & Part – II , Dr. B.C.Punmia, Laxmi Publications 3. Surveying & Levelling , N.N. Basak, Tata Mc Graw-Hill 4. Surveying & Levelling Part I & Part – II , S.K.Duggal, Tata Mc Graw-Hill 5. Text book of Surveying , S.K.Hussain & M.S. Nagaraj, S.Chand & Company 6. Plane Surveying, A.M.Chandra, New Age International Publishers. 7. Text Book of Surveying By Venkataramaiah universities press 8.

Plane Surveying By Alak De S. Chand & Company, New Delhi.

GENERAL EDUCATIONAL OBJECTIVES: Upon the completion of the study of the subject the student should be able to 1. Understand to application of levelling and plotting the Longitude and cross sections. 2. Understand the concept of contouring and know the methods of computation of Volume of reservoirs. 3.Know the methods of finding Areas and Volumes of earthwork. 4. Understand the principles theodolite of surveying. 5. Know the test and permanent adjustment of theodolite. 6. Understand the method of conducting traversing. 7. Know the construction and uses of miscellaneous instruments.

SPECIFIC INSTRUCTIONAL OBJECTIVES: Upon the completion of the study of the subject the student should be able to: 1. Explain the different types of levelling fly levelling, check levelling, profile levelling 1.1 Understand method of plotting Longitudinal section and Cross section. 1.2 Understand the errors in levelling and precautions in minimize them. 1.3 Explain the procedure of setting grades for servers and solve simple problems 2. Understand the concepts of contouring - Know the used in contouring characteristics of contours and their uses. 2.1 Explain the methods of contouring. 2.2 Know the method of interpolation by arithmetic method. 2.3 Know the trapezoidal rule for computation of Capacity of Reservoirs and solve simple problems

3. Understand the concepts of Areas and Volumes 3.1 Know the Trapezoidal Rule and Simpson’s Rule to find area of irregular figures. Solve Simple problems 3.2 Know the Trapezoidal Rule and Prismoidal Rule to find Volume of earth workcross sectioning – Level sections and Two level sections.- Solve simple problems. 4. Understand the principles of theodolite surveying. 4.1 Define common used in theodolite surveying. 4.2 Explain the different component parts of transit 4.3 Know the fundamental lines of transit and to relationship between them. 4.4 Understand the temporary adjustments of a theodolite. 4.5 Know the measurement of horizontal and vertical angles by repetition and Reiteration methods. 5. Understand the Permanent Adjustments of Theodolite 5.1 Know the method of testing & adjustment of Plate Level. 5.2 Know the method of testing & adjustment of Line of Sight. 5.3 Know the method of testing & adjustment of Horizontal Axis . 5.4 Know the method of testing & adjustment of Altitude Level.

6.1 6.2 6.3 6.4 6.5 6.6

. 6. Understand the method of conducting traversing. Explain the method of conducting traverse surveying in the field using a Theodolite. Explain the method of checking closed and open traverse. Compute the co ordinates of the station from the given field notes. Compute the latitudes and departures of lines, error of closure, relative error of closure. Balance the traverse by Bowditch’s method and transit rule. Calculate the omitted measurements like, i) length and bearing of one side; ii) length of one side and bearing of another side; iii) length of two sides iv) Bearing of two sides. Calculate the area of a closed traverse by i)departure and total latitudes, ii)total coordinates, iii)DMD method. 8. Know the construction and uses of the following miscellaneous instruments. i) Abney level ii) Ceylon ghat tracer iii) Pentagraph iv) Planimeter (Mechanical & Digital) MODEL QUESTION PAPER Time : 3 Hrs ]

[ Max marks : 100

Note: Question No.1 is Compulsory. Answer any Two full questions in each sections Q1. A) Fill in the Blanks with suitable words 1 x 5= 5 1. The instrument used for calculating area of a map is _______________ 2. The Vertical distance between any two consecutive contours is called __________ 3. To apply Simpson’s rule the number of ordinates must be ________

4. Canal alignment is an example of __________ traverse. 5. The telescope is said to be __________ when its vertical circle is to its left and bubble of the telescope is up. B) Write a short note on Pentagraph.

SECTION – I Q2. a) Explain the method of plotting Longitudinal Sectioning. 5 b) In fly levelling from BM of R.L.145.605 , the following readings were observed Back sight: 1.545 2.695 1.425 2.925 Fore Sight: 0.575 1.235 0.595 From the last position of the instruments 6 pegs at 20m interval are to set out at an uniformly rising gradient of 1 in 50, The first peg is to have a RL of 144.00 find the staff reading and RL’s of the pegs. 10 Q3. a) Write any five Characteristics of Contours. 5 b) The contractor is asked to set out a sewer grade from the following data. Find the height of the boning rod and height of Sight rail at A,B and C. A

B

C

D

GL

170.52

169.45

168.95

168.75

Invert

167.30

166.90

166.90

166.50

Sewer gradient is 1 in 150 falling from A to D at an interval of 60m. The height of sight rail at D is 1.75m. 10 Q4. a) What are the objects of using Contour Maps. 4 b) Explain briefly the interpolation of Contours 4 c) The areas within contour lines at site of a reservoir and the face of the proposed dam are as follows. Contours Area m2 101 1000 102 12800 103 95200 104 147600 105 872500 106 1350000 107 1985000 108 2286000 109 2512000 7 SECTION – II Q5. a) List the fundamental lines of Theodolite and state the relationships between them. 5

b) A road of constant RL 160.00 run from North to South. The ground from East to West is horizontal. The ground levels along the centre line of road are as follows.

Chaniage

0

RL

157.6

30

60

90

120

150

180

158.2

158.8

157.9

158.5

159.1

159.4

Find the volume of the embankment by i) Trapezoidal Rule ii) Prismoidal Rule for a road of 8m wide at formation with side slope 1.5 : 1

10

Q6. a) Define the following i) Axis of Level tube ii) Swinging iii) Transiting iv) Telescope Normal b) Explain briefly the Temporary adjustment of Theodolite.

8 7

Q7. a) How are Vertical Angles are measured by using a Theodolite. b) List out the errors in Theodolite Surveying. c) Draw a neat sketch showing essential components of Theodolite.

4 4 7

SECTION – III Q8. a) What is error of closure? How it is balanced graphically ? b) The following table gives the latitudes and departures of the sides of a closed traverse ABCD. Compute its areas.

Latitude in m Line AB

South

241.80 245.10

CD

155.90 186.20

East

West

124.00

BC

DA Q9.

North

Departure in m

205.70 90.00 239.70

6 9

a) Write a note on Bow ditch’s rule and Transit Rule. 5 b) The following lengths and bearings were recorded in running a traverse ABCDE. The length and bearing of EA have been omitted. Calculate the length and bearing of line EA. Line AB BC CD DE EA

Length (m) 217.5 318.0 375.0 283.5 ?

Bearing 1200 15’ 620 30’ 3220 24 ’ 335018’ ?

Q10. a) Explain the method of conducting the Closed Traverse by using Deflection angles. b) Explain the method of Prolongation of Straight line using Theodolite. c) Write a note on Ceylon Ghat Tracer.

10

5 5 5