Which of the following statements is incorrect ? – McqOptions

MCQOPTIONS

1.	Which of the following statements is incorrect ?
A.	Error due to refraction may not be completely eliminated by reciprocal levelling.
B.	Tilting levels are commonly used for precision work.
C.	The last reading of levelling is always a foresight.
D.	All of the above statements are incorrect.
Answer» E.

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