A. Short questions

Try these first

1. 1.

   What does EDM stand for?

   Hint

   It's a technique used to measure distances.

2. 2.

   What is a Total Station used for?

   Hint

   Think about its components.

3. 3.

   What does EDM use to measure distances?

   • Light waves
   • Electromagnetic waves
   • Sound waves

   Hint

   Think about the nature of the signal used.

4. 4.

   True or False: A Total Station combines angle measurement with distance measurement.

   • True
   • False

   Hint

   Consider its primary role.

5. 5.

   If an EDM measures a distance of 500m but has a systematic error of 2m, what is the corrected distance?

   Hint

   Consider whether to add or subtract the error.

6. 6.

   During a GNSS survey, a rover records a position with an offset due to signal errors. If the base station provides a correction of 3m South, what is the corrected position?

   Hint

   Think about the direction of the correction.