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Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 3 (Q.No. 16)
Surveying
16.
In case of reduction of levels by the height of instrument method,
∑ B.S. - ∑ F.S. = difference in R.L.S of the first station and last station
∑ (R.L. + I + F.S.) - first R.L = ∑ (H.I. + No. of R.L.s.)
both (a) and (b) above
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
22 comments Page 1 of 3.
Kundarikaksha said:   9 years ago
Answer (A) is incorrect as the correct answer would be the difference in R. Ls of last & first station. Therefore (D) is the only option that matches.
DARSHAN said:   9 years ago
It should not be difference. It should be minus.
Dev said:   9 years ago
I think, A is correct answer.
Nandu sahu said:   9 years ago
BS - FS = first RL - Last RL.
Sayak sarkar said:   9 years ago
The question is about the height of instrument method, not for rise & fall method. the Correct answer is D.
(1)
Nayan ahir said:   8 years ago
For collimation method or Hight of instrument method. Answer A is correct.
Rajiv Deshar said:   8 years ago
BS-FS=last RL-first RL, as per HI method.
Karan said:   8 years ago
Yes, Right @Rajvir.
Pavan said:   7 years ago
In options, it is First RL -Last RL which is wrong. Last RL-First RL is correct.
Dvd said:   7 years ago
Yes, you are right @Pavan.
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