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Surveying and Levelling
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Levelling
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Levelling should always commence from a
A
Datum
B
B.M
C
Reference point
D
Permanent point
Answer:
B. B.M
Related Questions:
Method of ranging adopted in Forest areas.
The use of an optical square is:
Levelling should always commence from a
Indirect ranging using Theodolite is called:
A reference surface above which elevation of a point are determined is called ................. surface
