Jawaharlal Nehru Technological University Anantapur 2011-1st Sem B.Tech Civil Engineering II ester(R09) Supplementary s, "Surveying" - Question Paper

Code :9A01303
II B.Tech I Semester(R09) Supplementary Examinations, May 2011
SURVEYING
(Civil Engineering)
Time: three hours Max Marks: 70
ans any 5 ques.
All ques. carry equal marks

1. (a) discuss the principle on which chain survey is based.
(b) What factors should be considered in deciding the stations of a chain survey?
2. (a) What is declination? elaborate diff erent kinds of variations in declination?
(b) In an old survey made when the declination was 40 W, the magnetic bearing of a provided
line was 2100. The declination in the identical locality is now 100 E. elaborate the actual and
current magnetic bearing of the line?
3. (a) discuss briefl y fl y levelling and reciprocal leveling.
(b) The subsequent readings were taken with a level in sequence as follows:
1.585, 1.315, 2.305, 1.225, 1.325, 1.065, 1.815 and 2.325
The level was shifted after the 3rd and 6th readings. The 2nd change point was a
bench mark of elevation 150.375m. obtain the decreased levels of the remaining stations. Use
the rise and fall method.
4. (a) List the general methods of calculating area.
(b) discuss any 1 method giving its advantages, limitation and suitability for a provided kind
of work.
5. provide a list of the permanent adjustments of a transit theodolite and state the object of every of
the adjustment. define how you would make the Trunnion axis perpendicular to the vertical
axis.
6. (a) How will you fi nd the constants of a tacheometer? discuss with neat sketch.
(b) What is an analytic lens? State the advantages and disadvantages of it.
7. (a) Why are the curves given. discuss diff erent kinds of curves with neat sketches.
(b) 2 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 off sets from the chords produced with a peg interval of
20m.
8. explain in detail the advantages and disadvantages of the Total Station surveying over traditional methods of surveying.

Earning:   Approval pending.