E E3841 Pages: 2
Chainage(m) 0 30 60 90 120 150 180

Level (m) 183.5 182.45 182.15 181.55 180.95 182.05 180.8

Compute the volume of cutting using Trapezoidal formula and Prismoidal

formula. Given that the width of formation level is 8m and the side slopes 1.5 to 1.

6 a) List the factors which determine the inter-visibility between triangulation stations.
(5) b) List the temporary adjustments of a theodolite. (5) c) Explain the horizontal
angle measurement procedure. (5)

PART C
Answer any two full questions, each carries 20 marks

7 ०४) Explain any five laws of weights. (5)
b) Define the following terms: (10)
i) Observer’s meridian ii) Zenith distance iii) Azimuth iv)
Declination v) Hour circle
c) Explain the advantages of total station survey. (5)
8 2) The following are the mean values observed in the measurement of three angles A, (13) 8 and
C at one station.
^ = 76°42’46.2” with weight 4, A+B = 134°36732.6” with weight 3 B+C
= 185°35°24.8” with weight 2, A+B+C = 262°18710.4” with weight 1
Calculate the most probable value of each angle.
b) Define modulation and explain the different methods of modulations. (7)
9 2) Define the term ‘most probable value’and explain the method of finding least (10)
squares.
b) What is meant by EDM instruments? Explain different types of EDM instruments (10)

with examples
1,

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