1.18.4. Measurement of horizontal angles

Try these first

1. 1.

   What are the primary adjustments needed before using a theodolite?

   Hint

   Think about the acronym CHL.

2. 2.

   What is the purpose of using a vernier scale?

   Hint

   What does the vernier scale help to determine?

3. 3.

   What is the primary purpose of temporary adjustments?

   • To enhance readability
   • To ensure the instrument is accurate
   • To set a standard for measurements

   Hint

   Think about why preparation matters before taking measurements.

4. 4.

   True or False: The repetition method requires measuring the same angle multiple times.

   • True
   • False

   Hint

   How do we achieve precision in surveying?

5. 5.

   You are a surveyor tasked with measuring the angles of a triangular plot. After using the reiteration method, you find discrepancies in readings. Describe how you would address the error.

   Hint

   Think about the process of error correction.

6. 6.

   In a project, you need to achieve high precision for a single angle measurement. Which method would be appropriate and why?

   Hint

   Consider precision needs versus number of angles.