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Q1: Centering error of a theodolite produces an error

A in all angles equally

B which does not vary with the direction or pointing

C which varies with the direction of pointing and inversely with the length of sight

D none of these.

ANS:C - which varies with the direction of pointing and inversely with the length of sight

If the centering is not proper then the horizontal axis of the instrument is not leveled properly means the instrument is some kind inclined at any side so when we take reading at different point error is also different and the error formula = (L x (dL/ ΣL) so it's inversely proportional to the total length.



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