Civil Engineering - Surveying - Discussion
Discussion Forum : Surveying - Section 3 (Q.No. 7)
7.
In reciprocal levelling, the error which is not completely eliminated, is due to
Discussion:
27 comments Page 1 of 3.
Anupam said:
8 years ago
In reciprocal levelling collimation, error and error due to curvature are completely eliminated.
The elimination of the error due to refraction depends upon the change in climatic condition during the transfer of the instrument.
The elimination of the error due to refraction depends upon the change in climatic condition during the transfer of the instrument.
Pkota said:
5 years ago
Actually, we assume that refraction is same at both points but the fact is, refraction is a function of temperature and pressure which we can't control all other errors can be eliminated but the error due to refraction can't.
Beekram Lama said:
3 years ago
The elimination of the error due to refraction depends upon the change in the climatic conditions during the transfer of the instrument hence the error due to refraction may not be removed completely.
Ref: R. Agor.
Ref: R. Agor.
(1)
Avinash said:
6 years ago
Answer is C because in question the said to completely eliminate error. Means due to refraction the error eliminated but partially not completely. And options C is not related to eliminate partially or completely.
Ogundele dare said:
9 years ago
Reciprocal leveling is the leveling between two widely separated points in which observations are made in both directions to eliminate the effects of atmospheric refraction and the curvature of the earth.
SPS said:
9 years ago
D is the right answer because reciprocal levelling eliminates all types of errors when the bubble is in the center. If the bubble is disturbed the error cannot be eliminated. Thanks.
Arka said:
8 years ago
As per my knowledge, reciprocal levelling eliminates both curvature and refraction error completely.
Kirti said:
7 years ago
It is due to the reciprocal levelling elimination errors due refraction, curvature and collimation.
SHUBHAM SINGH said:
6 years ago
No, in reciprocal levelling error due to earth curvature and refraction is completely eliminated.
MJM GCEK said:
4 years ago
In reciprocal leveling, refraction error is removed partially so the given answer is correct.
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