Tacheometric surveying is particularly adopted where
- Aobstacles, steep and broken ground deep ravines, etc. existCorrect
- Btoo many curves at the border exist
- Cmeasurement of bodies of water are involved
- Dlimitations of space exist
Solution
Concept
Tacheometric Surveying Applications
Formula
N/A
Step-by-step solution
1. Review the question regarding the application of tacheometric surveying. 2. Recall that tacheometric surveying is ideal for steep, broken ground and deep ravines where direct chaining is difficult. 3. Select Option A as the correct choice.
Explanation
Tacheometric surveying uses an optical instrument to measure distances and elevations using angles and light rays, eliminating the need to stretch measuring tapes or chains along the ground. This makes it ideal for rough, steep, or broken terrain with deep ravines and obstacles where physically measuring on foot is dangerous or extremely difficult.
Shortcut
To remember when to use Tacheometric Surveying, use the memory rule "Tacheometry = Tape-Free in Tough Terrain": - Tape-Free: Measures distance optically, eliminating the need to stretch tapes on the ground. - Tough Terrain: Ideal for rough, steep, and broken ground, obstacles, or deep ravines where chaining is difficult or dangerous.
Common mistake
A common mistake is selecting option C by confusing tacheometric surveying with hydrographic surveying, which is specifically used for mapping bodies of water. Another frequent error is choosing option B or D by assuming tacheometry is intended for tight spatial limits or boundary curves, rather than recognizing its main advantage: measuring distances and elevations optically over steep, broken, or inaccessible terrain where direct chaining is difficult.
Correct answer: A) obstacles, steep and broken ground deep ravines, etc. exist