SSC SSC JE Civil 2025 Mock Test Series (Paper 1 & Paper 2) Surveying Levelling

The staff reading at a distance of 80 m from a level with bubble at its centre is 1.52 m and when it is moved 5 division out of the centre, the reading is 1.60 m. The angular value of the bubble is:

1
20.62”
2
41.25”
3
14.55”
4
25.5”
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