Surveying - 1 - Dec 2014
Civil Engineering (Semester 3)
TOTAL MARKS: 80
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Assume data if required.
(4) Figures to the right indicate full marks. 1 (a) Explain cumulative and compensating errors in chaining.(4 marks) 1 (b) Describe temporary adjustment of prismatic compass.(4 marks) 1 (c) Explain the reciprocal levelling and state its advantages.(4 marks) 1 (d) Differentiate between consecutive co-ordinate and independent coordinate.(4 marks) 1 (e) Explain the characteristics of contour lines.(4 marks) 1 (f) Explain geodetic surveying.(4 marks) 2 (a) Write short notes on compound levelling and profile levelling.(5 marks) 2 (b) A chaining pass a porid,stations P and Q were selected on opposite side of the pond. A line PA,200 m long, was set out of the left of PQ ,and a line PB was set out on the right such that A,Q and B are collinear. The length of PB was 250m. The length of AQ and QB were meassured to be 125m and 150m respectively. The chainage at P is 1020.55m. Calculate the chainage of Q.(5 marks) 2 (c) The following bearings were observed while traversing with compass. Find which stations are affected by local attractions and work out corrected bearing of the lines of closed traverse.
|AB||191° 30'||13° 0'|
|CD||32° 15'||210° 30'|
|DE||262° 45'||80° 45'|
|EA||230° 15'||53° 00'|
<colgroup width="85"> </colgroup> <colgroup width="106"> </colgroup> <colgroup width="85"> </colgroup>
|Line||Lat (m)||Dep (m)|
<colgroup width="85"> </colgroup> <colgroup width="106"> </colgroup> <colgroup span="10" width="85"> </colgroup>
Calculate the area enclosed between the chan-line, the hedge and the end-offsets by simpson's rule & trapezoidal rule.(10 marks)
Write short note on any four.
6 (a) Hypotenusal allowance.(5 marks) 6 (b) Types of variations.(5 marks) 6 (c) Sources of error in levelling.(5 marks) 6 (d) Spire test.(5 marks) 6 (e) Orientation in plane table surveying.(5 marks)