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In a two-peg test using model Wild NA2 dumpy level, the following observation were taken: Point C is equidistant from A and B and D is 12 m from A and 72 m from B.

In a two-peg test using model Wild NA2 dumpy level, the following observation were taken: Point C is equidistant from A and B and D is 12 m from A and 72 m from B.

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In a two-peg test using model Wild NA2 dumpy level, the following observation were taken: Point C is equidistant from A and B and D is 12 m from A and 72 m from B. Instrument at C Instrument at D Rod Reading on 1.103 0.568 A Rod Reading on 0.991 0.289 B a) Find the true difference in elevation (in meters) between A and B b) With the level in the same position at D, find the rod reading (in meters) on B should the line of sight be adjusted. c) Find the corresponding rod reading (in m) at A for a horizontal line of sight with instrument still at D?
Transcribed Image Text:In a two-peg test using model Wild NA2 dumpy level, the following observation were taken: Point C is equidistant from A and B and D is 12 m from A and 72 m from B. Instrument at C Instrument at D Rod Reading on 1.103 0.568 A Rod Reading on 0.991 0.289 B a) Find the true difference in elevation (in meters) between A and B b) With the level in the same position at D, find the rod reading (in meters) on B should the line of sight be adjusted. c) Find the corresponding rod reading (in m) at A for a horizontal line of sight with instrument still at D?
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