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Basic Civil Engineering

S S Bhavikatti

Chapter 13

Compass Surveying - all with Video Answers

Educators


Chapter Questions

Problem 1

Explain with a neat sketch construction of a prismatic compass.

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Problem 2

Bring out the differences between prismatic compass and surveyor's compass.

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03:37

Problem 3

Distinguish between
(a) Magnetic meridian and true meridian.
(b) Whole circle bearing and quadrantal bearing-
(c) Declination and dip.
( $d$ ) Fore bearing and back bearing.
(e) Isogonic and agonic lines.

Linh Vu
Linh Vu
Numerade Educator
03:37

Problem 4

What is meant by magnetic declination? List the different types of its variations.

Linh Vu
Linh Vu
Numerade Educator
04:25

Problem 5

What is local attractions? How it is detected in the field?

Dennis Howard
Dennis Howard
Numerade Educator

Problem 6

What are the precautions to be taken while taking bearing of a line with a compass.

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Problem 7

In traversing in anticlockwise direction, the following readings were observed:
Draw a neat sketch of the traverse. Determine the interior angles of the traverse and apply check.
$$
\begin{array}{ll}
\angle \mathrm{A}=162^{\circ} 30^{\circ} & \angle \mathrm{B}=94^{\circ} 45^{\prime} \\
\angle \mathrm{C}=116^{\circ} 30^{\circ} & \angle \mathrm{D}=50^{\circ} 45^{\prime} \\
\angle \mathrm{E}=115^{\circ} 30^{\prime} & \mathrm{S} \theta=540^{\circ} \quad \text { Checked.}
\end{array}
$$

Michael Anderson
Michael Anderson
Numerade Educator

Problem 8

The following bearings were taken in running a compass traverse:
At what stations do you suspect local attraction? Find the correct bearings of the lines and also compute the included angles.

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