Question

# Table overleaf (Q3) indicates a levelling survey carried out by students at the European University of...

1. Table overleaf (Q3) indicates a levelling survey carried out by students at the European University of Lefke.

1. Determine the reduced levels using the height of plane of collimation (HPC) method.
2. What is the misclosure?
3. Carry out the usual mathematical checks to determine if this misclosure is due to errors in computation.
4. Distribute the actual misclosure and obtain the corrected reduced levels.

Table Q3. Question 3

 Back sight (m) Intermediate sight (m) Fore sight (m) HPC (m) Reducel Level (m) Correction (m) Corrected RL (m) Remarks 1.506 TBM1 = 55.000 m 1.747 Chainage point 0 m 2.872 . Chainage point 10 m 2.103 1.928 Change Point 1.130 Chainage point 20 m 0.511 Chainage point 30 m 3.789 Chainage point 40 m 2.025 3.276 Change Point 2.342 Chainage point 50 m 3.784 0.067 Change Point 1.721 Chainage point 60 m 0.681 Chainage point 70 m 1.347 Chainage point 80 m 0.756 Chainage point 90 m 1.247 Chainage point 100 m 1.871 TBM2

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