Basic Survey Computations 1

Question 1

Name 3 examples of reference systems.

Answer 1

1) WGS84
2) UK National Grid
3) Local site grid

Question 2

What are the 2 types of plane coordinate reference systems?

Answer 2

1) Plane rectangular (Cartesian) coordinates (x,y)

2) Plane Polar coordinates (r, theta).

Question 3

What is a plane rectangular reference system?

Answer 3

The most frequently used in plane surveying computations. The location is defined by specifying coordinates relative to a pair of perpendicular axes.

Question 4

In surveying and mapping what is the reference direction?

Answer 4

North

Question 5

Polar to rectangular conversions: In maths is x=rcosθ and y=rsinθ what is the equivalent in mapping?

Answer 5

E=lsinα

N=lcosα