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Chapter:

Levelling

If observed back sight and fore sight are 20 m and 18 m. The correction back sight on A will be equal to 16 m, The correct fore sight on B will be equal to 14 m where n what is correction difference in level between A and B?


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If the observed back sight and fore sight are x1 and x2. The correction back sight on A will be equal to x1-y1, where y1= D1 tan i°. The correct fore sight on B will be equal to x2-y2 where, y2 = D2 tan i°. Then what is the correction difference in level between A and B, if D1 = D2?

If observed back sight and fore sight are 20 m and 18 m. The correction back sight on A will be equal to 16 m, The correct fore sight on B will be equal to 14 m where n what is correction difference in level between A and B?

If the staff reading at point A = ha and at a point B = hb. The correct staff reading should have been Ha and Hb, then the correction difference in elevation between A and B is given by _____

If the observed back sight and fore sight are 20 m and 18 m. The correction back sight on A will be equal to 16 m

The correct fore sight on B will be equal to 14 m where then what is the correction difference in level between A and B?

Levelling

Surveying