Enlist errors in stadia tacheometry:

1. Permanent adjustment not perfect.
2. Graduation of staff not uniform.
3. The value of multiplying constant not correct.
4. Error due to imperfect adjustment of the plate.
5. Idex erroe i.e, error due to imperfect adjustment of vertical circle.
6. Error due to horizontal axis not being perpendicular to the vertical axis.

1. Error due to incorrect centering or levelling.
2. Error due to Staff not being perpendicular.
3. Error due to imperfect focusing.i.e, parallex error causing incorrect readings.
4. Error due to taking very long sights.
5. Error due to slip.
6. Error due to inaccurate bisection to targets.
7. Mistakes.

1. High winds.
2. Very high temperature causing expansion.
3. Error due to glare of sun.
4. Poor visibility.
5. Error due to unequal settlement of tripod legs.
6. Error due to uneq....

Instrumental errors:

1. Permanent adjustment not perfect.
2. Graduation of staff not uniform.
3. The value of multiplying constant not correct.
4. Error due to imperfect adjustment of the plate.
5. Idex erroe i.e, error due to imperfect adjustment of vertical circle.
6. Error due to horizontal axis not being perpendicular to the vertical axis.

Observational errors:

1. Error due to incorrect centering or levelling.
2. Error due to Staff not being perpendicular.
3. Error due to imperfect focusing.i.e, parallex error causing incorrect readings.
4. Error due to taking very long sights.
5. Error due to slip.
6. Error due to inaccurate bisection to targets.
7. Mistakes.

Natural Errors:

1. High winds.
2. Very high temperature causing expansion.
3. Error due to glare of sun.
4. Poor visibility.
5. Error due to unequal settlement of tripod legs.
6. Error due to unequal refraction.