A hill is as obstacle to
- Achaining but not ranging
- Branging but not chaining
- Cboth ranging and chainingCorrect
- Dneither ranging nor chaining
Solution
Concept
Obstacles
Step-by-step solution
1. A hill blocks the line of sight (ranging) and also hinders measurement along the line (chaining). 2. It is therefore an obstacle to both.
Explanation
Both operations are affected.
Shortcut
Hill → both.
Correct answer: C) both ranging and chaining