1.

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

A. ha hb ha + hb
B. ha + hb + ha + hb
C. Ha Hb + ha hb
D. Ha + Hb
Answer» B. ha + hb + ha + hb


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