# Surveying I ```POKHARA UNIVERSITY
Level: Bachelor
Programme: BE
Course: Surveying I
Semester – Fall
Year
: 2005
Full Marks: 100
Time
: 3hrs.
Candidates are required to give their answers in their own words as far
as practicable.
The figures in the margin indicate full marks.
Attempt all the questions.
1. a)
What are the primary divisions of surveying? Explain the principles
of surveying with suitable examples.
6
b)
A field was surveyed with a 30m chain and its area was found to be
25.35 hectares. If it was found that the chain was 75 mm too long.
Find the correct area of the field.
9
2. Explain various corrections applied in linear measurement. What
correction in m must be applied per 100 m length of a line measured along
a slope of i) 50 ii) 30.
15
3. a)
What are the methods of designating the bearings? Explain briefly.
6
The following all the magnetic bearings of a closed travers ABCD,
carried out in an area uncles the influence of local attraction.
9
4. Explain &quot;two peg test&quot; method of collimation adjustment. The following
consecutive reading we taken with a dumpy level:
15
b)
3.864, 3.346, 2.932, 1.952, 0.854, 3.796, 2.639, 1.542,1.934, 0.864, 0.665.
The level wad shifted after the fifth and the eighth readings. The first
reading was taken an a bench mark of R.L. 150.250. Calculate the reduced
levels of the change points, and the difference of level between the first
and test points.
5. a)
What are the field measurements necessary in theodolite traversing?
Explain campass rule for balancing the traverse.
6
b)
The following data refer to a closed traverse ABCDE. Find the
length of the sodes DE and EA.
Length in m
Bearing
778.50
77030'
649.00
337030'
660.50
284048'
?
231006'
?
135040'
9
Line
AB
BC
CD
DE
EA
6. a)
b)
Explain any one method of analytical resection.
6
Write the methods of plane table survey.
9
7. Write short notes on (any two):
a)
Triangulation and trilatution
b)
Reciprocal trigonometrical levelling
c)
Three point problem in P.T. survey
52
```