Sources Of Error Flashcards
(5 cards)
1
Q
Instrumental Errors
A
a. Instrument out of Adjustment
b. Rod not standard length
c. Defective Tripod
2
Q
Personal Errors
A
a. Bubble not centered
b. Parallax
c. Faulty Rod readings
3
Q
Natural Errors
A
a. Curvature of the Earth
b. Atmospheric Refraction
4
Q
Common mistakes in Leveling
A
- Misreading the rod
- Incorrect recording
- Erroneous computation
5
Q
Adjustment of the dumpy level
A
Adjustment of:
Cross Hairs
Level Vial
Line of sight
