E B3E033S Pages: 3

Reg. No. Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
THIRD SEMESTER B.TECH DEGREE EXAMINATION, JULY 2017

Course Code: CE 207
Course Name: SURVEYING (CE)

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer Any Two Full Questions.
1. (9) Write the primary classification of survey and distinguish between them. (3.5)

(b) What is a well conditioned triangle? Why is it preferred in surveying? Examine
whether a triangle having sides 80m,60m and 40m is a well conditioned triangle or

not. (4)
(c) Explain how reciprocal levelling eliminates the effect of atmospheric refraction
and earth’s curvature. (4)

(d) A level is set up at 0 ona line AB 50m from A and 1400m from 8. The staff reading
on A is 0.585 m and that on B is 3.695 m. Find the true level difference

between A and B. (3.5)

2. (a) Explain the term Ranging of a line. Describe how you would range a chain line
between two points which are not intervisible. (7.5)
(b) The following readings refer to reciprocal levels taken with one level.

Instrument Near Staff Reading on Remarks

(metres)

‎Distance PQ=1010m‏ | 2.745 1.825 ال

‎0.925 1.605 RL of P =126.36

‎Find i) the true RL of Q ii) Combined Correction for curvature and refraction. (7.5)

‎3. (a) The following bearings were taken in running a compass survey.
Line Fore Bearing Back bearing

‎AB 12430” 3047307
BC 68°15’ 246507

‎CD 3107307 135515”
DA 200൦15" 17445”

‎At what stations do you suspect local attraction? Find the correct bearings of the lines

‎Page 1 of 3