1. Surveying Fundamentals

Surveying Instruments — Quiz

Test your understanding of surveying instruments with 5 practice questions.

Practice Questions

Question 1

A total station’s EDM laser beam divergence is $1\,\mathrm{mrad}$. What is the spot diameter on a planar reflector at $500\,\mathrm{m}$ range?

Question 2

To minimize horizontal index error, a theodolite user measures the same angle in face left and face right, obtaining $112^{\circ}30'15''$ and $112^{\circ}28'45''$. What is the corrected angle?

Question 3

For RTK GNSS to achieve centimetre-level accuracy, baseline lengths are typically kept below which distance due to atmospheric error decorrelation?

Question 4

Which antenna accessory is commonly used to mitigate multipath errors in high-precision GNSS surveys?

Question 5

Which accessory projects a laser dot onto a survey point to facilitate rapid and precise instrument centering?