Topic 5

Question 1

What is traversing

Answer 1

It is the measurement of a series of distances and directions

Question 2

What is true north

Answer 2

Direction represented by the lines of meridian joining the north and south poles of the earth

Question 3

What is magnetic north

Answer 3

Direction defined by a freely suspended magnet as it comes to rest uninfluenced by local attracting forces

Question 4

What is arbitrary north

Answer 4

Any line adopted as reference north

Question 5

What is whole circle bearing

Answer 5

The angle between the north direction and the survey line measured in clockwise

Question 6

What are theodolites used for

Answer 6

Measuring of horizontal and vertical angles

Question 7

What are total stations used for

Answer 7

Measuring of both horizontal and vertical angles and distances

Question 8

Face left + face right = ?

Answer 8

180 degrees

Question 9

Which face is default

Answer 9

Left

Question 10

Why do you need to take additional readings on face right

Answer 10

To eliminate error

Question 11

Why is changing face necessary

Answer 11

To eliminate:
The effects of horizontal and vertical collimation and trunnion axis dislevelment
Errors due to eccentricity of circle
Errors due to inclined diaphragm