Example 3: The following consecutive readings were taken with a dumpy level and 4 m levelling…

Example 3: The following consecutive readings were taken with a dumpy level and 4 m levelling staff on a continuously sloping ground at 30 m intervals. 0.680, 1.455, 1.855, 2.330, 2.885, 3.380, 1.055, 1.860, 2.265, 3.540, 0.835, 0.945, 1.530 and 2.250. RL of the starting point was 190.750 m. I. Rule out a page of a level book and enter the above readings. II. Determine the RL of various staff stations. III. Estimate average gradient of ground measured.Use rise and fall method