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

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1.	Probable systematic error in precise levelling as recommended by International Geodetic Association should not exceed (where k is in kilometers.)
A.	± 0.1 √k mm
B.	± 0.2 √k mm
C.	± 0.1 √k
D.	0.2 √k mm
Answer» E.

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