SPPU Civil Engineering (Semester 3)
December 2014
Total marks: --
Total time: --
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary

Answer any one question from Q1 and Q2
1 (a) Explain the following technical terms with sketches:
i) Oblique offset
ii) Swivel joint
iii) True meridian
iv) Base line.
6 M
1 (b) The following notes refer to reciprocal levels. Find R.L. of B.
Instrument at Staff reading on Remarks
  A B
A 1.755 3.155 Distance AB= 500.00 m
B 1.155 2.915 RL of A=1000.00 m
6 M

2 (a) Explain the following with sketches:
i) Lifting lever
ii) U-fork with plumb-bob
iii) WCB
iv) Eye ranging.
6 M
2 (b) While carrying out the permanent adjustment of a dumpy level by two peg method, the following obervations were made:
Instrument At Reading on C Reading on D Remark
E midpoint of CD 2.000 3.000

CD = 100 m;

CF = 120 m;

DF = 20 m;

F 1.500 2.75

Check whether the instrument needs adjustment or not and whether the line of collimation is inclined upwards or downwards. What should be the correct reading at C if the instrument is to be adjusted at F?
6 M

Answer any one question from Q3 and Q4
3 (a) (i) Write short notes on:

Direction angle method.
3 M
3 (a) (ii) Error of closure in Theodolite traversing.
3 M
3 (b) A simple circular curve is to be set out by offsets from chord produced. The curve has the following details:
i) Radius of the curve 600 m
ii) Deflection angle of the curve 29°
iii) Chainage of intersection point 2900 m
iv) Peg interval 30 m.
Tabulate the data necessary to set out the curve.
6 M

Write short notes on:
4 (a) (i) Balancing the traverse.
3 M
4 (a) (ii) Prolonging a line.
3 M
4 (b) Draw neat sketch and write equations for the following in terms of radius of curve (R) and deflection angle (ϕ):
i) Long chord
ii) Versed sine
iii) Apex distance.
6 M

Answer any one question from Q5 and Q6
5 (a) Describe the methods of determination of tacheometric constants.
7 M
5 (b) Explain permanent adjustment of the horizontal axis.
6 M

6 (a) he following observations are made on a vertically held staff with a tacheometer fitted with a anallactic lens. The multiplying constant of the instrument was 100. Compute the length of AB and RL of B:
Instrument at H.I Bearing Staff station Vertical angle Hair readings Remarks
BM  1.50   30o A -5o- 30' 1,000,  1.110,  1.250 R.L. of BM  200.00 m
  120o B +10o 00' 0.950, 1.150, 1.260
7 M
6 (b) State permanent adjustments of Theodolite. Explain any one in detail.
6 M

Answer any one question from Q7and Q8
7 (a) Explain step by step procedure of setting out building with total station.
7 M
7 (b) Describe setting out tunnel centre line on surface.
6 M

8 (a) Write the working principle of total station. Explain the features of total station.
7 M
8 (b) Write a short note on Route Survey.
6 M

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