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?

It is required to determine by periodical soundings, the rate at which

1.	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?
A.	Range and time intervals
B.	Two angles from the boat
C.	Tachometric observations
D.	Intersecting ranges
Answer» E.

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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?

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