What kind of tools are used for soil surveying?

Question

please tell me what and how they are used

Answer 1

Well some I know of are:
Dumpy: Used to measure distances and it can be used to measure angles and elevations. It is actually one of the oldest there is.
Tilting: Is mainly used to measure elevations. It has a drawback because in some you see things upside down.
Automatic: Like the tilting is used to measure elevations but is a lot faster and more convenient.
My favorite though is the total station like the name says is total. It measures elevations, distances, angles and all digital. It uses a prism to which it sends a signal and measures the time it takes to travel from one place to the other to measure distance.