Computer · Surveying
During a levelling survey, if the backsight reading at point A is found to be greater than the foresight reading at point B, which of the following statements is correct?
- 1Either A or B can have higher elevation depending on datum.
- 2Elevation of B is more than that of A.✓
- 3Elevation of A is more than that of B.
- 4Height of instrument is required to know which point is higher.
Correct answer
Elevation of B is more than that of A.
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