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Civil Engineering Waste Water Engineering Difficulty: Medium

'F'r'o'm' 't'h'e' 'e'n'd' 'o'f' 'a'n' 'i'n's't'r'u'm'e'n't'a'l' 'r'u'n'w'a'y',' 't'h'e' 'a'p'p'r'o'a'c'h' 's'u'r'f'a'c'e' 'r'i's'e's' 'o'u't'w'a'r'd's' The length of a runway under standard atmospheric conditions is 1800 m. If the actual reduced level of the site is 1200 m, the design length of the runway is The angle between the axis of earth and the vertical at the station of observation is called If jd is the lever arm and $$\sum {\text{O}} $$ is the total perimeter of reinforcement of an R.C.C. beam, the bond stress at the section having Q shear force, is The net speed under which the turbine reaches its peak efficiency is called