Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 17 (Q.No. 25)
25.
It is required to determine by periodical soundings, the rate at which silting or scouring is taking place in a harbour. Which one of the following methods is best suited for locating the positions of the soundings?
Range and time intervals
Two angles from the boat
Tachometric observations
Intersecting ranges
Answer: Option
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