In chain survey execution, the first step taken is
- AReconnaissanceCorrect
- BMarking stations
- CRunning survey line
- DReference sketches
Solution
Concept
Steps of chain survey
Step-by-step solution
1. The first step is reconnaissance: a general inspection of the area. 2. After it come marking stations, running the survey lines and taking details.
Explanation
Before starting a chain survey the surveyor walks over the area to decide the layout of lines and the position of stations. This preliminary inspection is called reconnaissance.
Shortcut
Order: Reconnaissance → Marking stations → Running lines → Offsets and details.
Common mistake
Choosing marking stations as the first practical step.
Correct answer: A) Reconnaissance