Probable accidental error in precise levelling as recommended by Inter – McqOptions

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1.	Probable accidental error in precise levelling as recommended by International Geodetic Association, should not exceed (where k is in kilometers.)
A.	± 0.1 √k mm
B.	± 0.5 √k mm
C.	± 1 √k mm
D.	± 2 √k mm
Answer» D. ± 2 √k mm

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