15.7.2. Error Sources

Try these first

1. 1.

   What is the main cause of instrumental errors?

   Hint

   Think about the tools we use in surveying.

2. 2.

   Name one way to minimize human errors in surveying.

   Hint

   What can we do to avoid mistakes while recording data?

3. 3.

   What type of error is caused by misalignment of surveying instruments?

   • Environmental
   • Instrumental
   • Human

   Hint

   Think about the tools' setup.

4. 4.

   True or False: Human errors can be eliminated completely in construction surveys.

   • True
   • False

   Hint

   Consider the nature of human work.

5. 5.

   A construction survey team recorded a distance of 100.5 m, but subsequent checks revealed a calibration error leading to a true distance of 99.2 m. Calculate the percentage error and discuss the implications.

   Hint

   Think about measuring tools and their correction.

6. 6.

   Propose a comprehensive plan to mitigate both human and instrumental errors in a complex construction project using various survey methods.

   Hint

   Consider combining multiple techniques.