Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 3 (Q.No. 20)
20.
Pick up the correct statement from the following :
the lines of sight while observing back sight and fore sight lie in the same horizontal plane
the staff readings are measurements made vertically downwards from a horizontal plane
the horizontal plane with reference to which staff readings are taken, coincides with the level surface through the telescope axis
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Raihan KAIZEN said:   6 years ago
Will the measurements be always vertically downwards, as in operation B. Can anyone please tell me?

Rabin said:   12 months ago
Can anyone explain this in detail?

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