b)

a)

b)

a)

b)

a)
b)

0)

a)

08000CE207122001

The following perpendicular offsets were taken from a chain line. Calculate the

area between the chain line, the boundary and the end offsets.

Chainage | 0 15 30 45 60 70 80
Offset 7.80 8.50 10.80 | 12.90 | 10.70 | 9.50 8.30

Compute the area by 1) Simpsons rule 2) Trapezoidal rule.

Explain the procedure of construction of mass diagram with a neat sketch. What
are the features of it?

A railway embankment is 16 m wide at formation level, with side slope of 2 to
1. Assuming the ground to be level transverse to the centre line, calculate the
volume contained in a length of 100 m, the centre heights at 20 m intervals
being in m : 2.0, 4.5, 4.0, 3.5, 2.5, 1.5 m respectively. Use trapezoidal rule.
What do you mean by satellite station and reduction to centre? Explain any one
case of reduction to centre.

The altitude of two proposed stations P and Q 135 km apart are respectively 220
m and 1260 m. The altitudes of two points L and M on the profiles between
them are respectively 310 m and 642 m, the distance being PL = 50 km and PM
= 90 km Determine whether P and Q are intervisible if necessary, find the

minimum height of scaffolding at Q assuming P as ground station.
PART (^
Answer any two full questions, each carries 20 marks.

Explain the laws of weights with examples.

The angles of a triangle A,B,C are:

A= 35°14715.3”

B = 25°15°26.4”

C = 8

A+B = 60°29°45.2”

B+C = 70387”

Find the most probable value of the angles A,B and C using normal equation

method
Define the terms using a neat sketch: 1) declination circle 2) hour circle 3)

observers meridian

What are the basic field measurements using total station? Explain the field

Page 2 of 3

(7)

(8)

(7)

(6)

(9)

(7)
(7)

(6)

(14)