The error which is not completely eliminated in reciprocal levelling, – McqOptions

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1.	The error which is not completely eliminated in reciprocal levelling, is
A.	error due to curvature
B.	error due to refraction
C.	error due to non-adjustment of the line of collimation
D.	error due to non-adjustment of bubble tube
Answer» C. error due to non-adjustment of the line of collimation

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