Q
A’level line’is a______________?
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A
A. Horizontal line
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B
B. Line parallel to the mean spheriodal surface of earth
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C
C. Line passing through the center of cross hairs and the center of eye piece
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D
D. Line passing through the objective lens and the eye-piece of a dumpy or tilting level
Correct Answer:
B. B. Line parallel to the mean spheriodal surface of earth
