Which one of the following statements is not correct in respect of set – McqOptions

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1.	Which one of the following statements is not correct in respect of setting of an inclined tunnel:
A.	Reference points are constructed at every 300 m.
B.	The alignment is fixed from upper/lower apex point.
C.	The level of the invert at the heading is marked by a tape.
D.	Reference points are constructed on the roof of tunnels
E.	None the above.
Answer» F.

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