15.7.1. Survey Accuracy Standards

Try these first

1. 1.

   What is the importance of tolerances in surveying?

   Hint

   Think about safety and standards.

2. 2.

   Define calibration in the context of surveying.

   Hint

   It's about making sure the tools are correct.

3. 3.

   What does tolerance refer to in construction surveys?

   • The optimum measurement
   • Acceptable limits of deviation
   • Maximum measurement allowed

   Hint

   Focus on limits and deviations.

4. 4.

   True or False: Calibration is unnecessary if instruments have been previously accurate.

   • True
   • False

   Hint

   Consider how accuracy can change over time.

5. 5.

   A survey of a building foundation indicates a deviation of 5mm from the design specifications. The tolerance allowed is 10mm. Discuss if this deviation is acceptable and what actions should be taken.

   Hint

   Compare the deviation with the tolerance limit.

6. 6.

   If a surveying instrument is consistently recording angles 2 degrees off due to collimation error, what steps should be undertaken to rectify this situation?

   Hint

   Focus on how to fix the issue and prevent future occurrences.