Mehran University Of Engineering and Technology

Surveying – I

Time Allowed:03 Hours 2nd

Term 1st

Year for B.E(Civil) 09-Batch Under External System Max Marks:80

NOTE: ATTEMPT FIVE QUESTIONS. Draw Neat and Clean sketches where necessary and assume your own

Data where Necessary

Q:1 (a) Define Offsets .

(b) A series of offsets were taken from a base line to a curved boundary line at an interval of 15 m in

the following order. 0, 7.58, 5.44 , 5.99, 9.73, 4.65, 5.50, 6.08, 4.60, 5,72, 3.75 m . Calculate the area

in sq. area in sq. meters enclosed between the chain line, the curved boundary line and the end offsets

by applying (i) Trapezoidal Rule and (ii) Simpson Rule.

Q:2 (A) Define Compasses.

(B) The following bearing were observed for the sides of a closed Traverse ABCDEA

AB= 58o0’ , BC= 124o30’ , CD= 48o 0’ , DE= 207o , EA= 200o 30’ . Find out the interior angles of traverse.

Q:3 : What do you know about plane Table surveying ? What do you recommend it . Discuss the

advantages of plane tabling over other methods of surveying.

Q:4: (A) Define Reduced Level and Line of Collimation.

(B) A surveyor was asked to take levels for constructing a road and the following staff reading were

recorded with level , 5m leveling staff and 30m measuring tape

1.26,2.80,1.62,1.11,1.20,1.49,1.58,2.70,1.57,1.72,1.80,1.10,1.58,1.02,1.35,1.87 and 1.52 . The first staff

reading was taken on BM of known elevation 50 m . Rule out a page of level book enter the above

reading and calculate the reduced levels of all the station by using any one method , also apply the usual

check . The instrument was shifted after 7th and 12th Readings.

Q:5 : (A) Write the Back bearing of the following bearing.

(i) S 35o 10 ‘ 30 ‘’ E (ii) 176o 10’ 10’’ (iii) S 28o 40’ 55’’ W

(iv) 232o 24’ 30’’ (v) N 80o 20’ 24’’ W (vi) N 58o 43’ 53’’ E

(B) Two straight AB 300 m apart at the nearer bank of the reiver there is a tree point P on the other

bank of the river, the bearing of line AP is 40o 30’ and the bearing of line BP is 330o 30’ . Compute the

width of the river.

Q:6: (A) Define a Traverse. Distinguish between a closed traverse an open traverse.

(B) The following bearing were observed in running a closed traverse . Calculate the interior angles

of the traverse and applying the usual checks.

LINE AB BC CD DE EA

F.Bearing 130o45’ 300o42’ 240o18’ 320o12’ 40o

B.Bearing 310o45’ 120o42’ 60o18’ 140o12’ 220o

Q:7 (A) Differentiate between whole circle bearing and Quadrantal Bearing.

(B) Draw a rough sketch of the following across staff survey of a field as shown in the figure below .

The figure is taken from a page of a field book in which reading of cross staff survey was recorded. Plot

the following cross staff survey of a field and calculate its area in square feet, assuming all

measurements being in feet.

30.5B 20C 20D 25E

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A 40 85 120 150 200 240 300F

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18.2 I 35 H 35 G

Q:8. (A) If the bearing of AB and AC are

(i) 25o 40’ and 147o 15’

(ii) 10o 50’ and 350o 10’

(B) Write Short Notes on any four of the following.

(i) Datum (ii) Bench Mark (iii) Intermediate Sight (iv) Steel Band (v) Contour

Mehran University Of Engineering and Technology

Surveying – I

Time Allowed:03 Hours 2nd

Term 1st

Year for B.E(Civil) 08-Batch Under External System Max Marks:80

NOTE: ATTEMPT FIVE QUESTIONS. Draw Neat and Clean sketches where necessary and assume your own

Data where Necessary

Q:1. (A) Define Surveying . Explain its importance for Civil Engineers . Describe in detail the different stages of

Survey Operations.

(B) The following bearing were observed in running a closed traverse . Calculate the interior angles of the traverse

and applying the usual checks.

LINE AB BC CD DA

F.Bearing 130o 30’ 22

o31’20’’ 300

o12’50’’ 188

o 44’

B.Bearing 310o 30’ 202

o 31’ 120

o 12’50’’ 08

o 44’

Q:2. (A) What do you know about Ranging. Describe briefly the different kinds of Ranging.

(B) A Base Line LN was measure in two parts . LM and MN of respective Length 729.50 ft and 544.0.ft with

steel tape which was exactly 100 ft @ 25oc and @ a pull of 100 N . The temperature during the measurement were

35oC where as applied pull during measurement was 120N and 130N respectively. Find the correct length of the

base line if the x-sectional area of the tape was 0.49 sq. in the co-efficient of expansion and the modulus of

elasticity of the tape were 0.0000035 per 1oc and 21 x 10

3 N/sq.in respectively.

Q:3 : (A) Write the Back bearing of the following Fore bearing.

(i) S 40o 05 ‘ 50 ‘’ W (ii) 210

o 08’ 03’’ (iii) N 85

o 34’ 08’’ W

(iv) 192 o 42’ 18’’ (v) S 60

o 00’ 42’’

(B) A surveyor was asked to take the levels on a piece of ground for constructing a road. The following staff

readings were recorded with a level, 5m leveling staff at a common interval of 30m.

1.230, 2.820, 0.950 ,1.490 , 2.520, 1.850, 2.720, 2.550, 1.820, 2.900, 2.150, 1.750, 3.300, 2.350, 1.250, 1.900, 1.540

and 1.900, 1.540, 1.800. The instrument was shifted after 6th

, 12th

readings respectively. The first staff reading was

taken on BM of known elevation 50m. Rule out a page of level book , enter the above readings and calculate the

reduced levels of all the points by using any one method , also apply the usual checks.

Q:4. Write short notes on any Four of the following.

(i) Advantages and Disadvantages of Plane Table Surveying (ii) Types of Chains (iii) Plane Surveying and

Geodetic Surveying (iv) Closed Traverse and Open Traverse (v) Chaining on sloping Ground (vi) Cross

Staff Survey

Q:5 (A) Define offsets. What is the difference between perpendicular offsets and oblique offsets.

(B) The following perpendicular offsets were taken from a base line to an irregular boundary line.

Distance (m): 0 30 60 90 120 150 180 210 240

Offsets (m): 21.01 18.12 14.03 16.36 13.02 11.25 10.90 15.98 12.04

Calculate the area in sq.meters enclosed between the base line, the irregular boundary and first and last offsets by

applying (i) Trapezoidal Rule and Simpson’s Rule

Q: 6: (A) Differentiate between Whole circle bearing system and Quadrantal bearing system.

(B) The following bearings were taken in running a compass traverse @ a place where local attraction was

suspected.

Line AB BC CD DE EA

F.B 55o 112

o 30’ 205

o 257

o 295

o30’

B.B 234o 294

o 25

o 75

p30’ 116

o30’

At what stations do you suggest local attraction? Find the corrected fore and back bearings of each of the lines.

Q:7 (A) Convert the following W.C.B and R.B and R.B to W.C.B

(i)210o20’50’’ (ii)160

o 10’ 20’’ (iii) 290

o 40’ 20’’ (iv) N 20

o 50’ 20’’ E

(v) S 20o 10’ W (vi) N 20

o 50’ 20’’ E (vii) 30

o 40’ 40’’ (viii) N 30

o 50’ 40’’

(B) Draw a rough sketch of the following across staff survey of a field as shown in the figure below . The figure

is taken from a page of a field book in which reading of cross staff survey was recorded. Plot the following cross

staff survey of a field and calculate its area in square feet, assuming all measurements being in feet.

23 G 20 F

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A 0 75 120 180 250 280 E

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25 B 35 C 20 D

Q:8 ( A) Describe a method of continuing chaining from one side to the other side of an obstacle which is

obstructing the chaining and view as well.

(B) The following field observations were recorded with theodolite in running a closed traverse ABCDEFGA.

A= 85o 45’ B= 135

o 03’ C=120

o 24’ D= 162

o 12’ E= 117

o 54’ F= 99

o 42’

Calculate the bearing of the remaining sides of the traverse if the observed bearing of side AB = 290o

45’