Which of the following is NOT a method of ranging used in chaining?
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A.
Optical ranging
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B.
Reciprocal ranging
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C.
Indirect ranging
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D.
Direct ranging
Correct Answer:
A. Optical ranging
Explanation:
Indirect ranging is also known as reciprocal ranging, and it is a technique used in survey chaining when the two endpoints of a line are not visible to each other due to intervening high ground or long distances. Along with direct ranging, which includes eye ranging and the use of line rangers, these constitute the standard methods of establishing intermediate points on a survey line. Optical ranging is not a recognized term or method within the specific context of ranging techniques used in traditional chain surveying. Therefore, optical ranging is the correct choice as it is not a method of ranging used in chaining.
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