A dumpy level was set up at the midpoint between two pegs A and B; 50 m apart and the staff readings at A and B were 1.22 and 1.06. With the level set up a A; the readings at A and B were 1.55 and 1.37. The collimation error per 100 m length of sight is

Question:
  
A dumpy level was set up at the midpoint between two pegs A and B; 50 m apart and the staff readings at A and B were 1.22 and 1.06. With the level set up a A; the readings at A and B were 1.55 and 1.37. The collimation error per 100 m length of sight is

1.0.02 m inclined upwards

2.0.04 m inclined downwards

3.0.04 m inclined upward

4.none of these.

Posted Date:-2021-03-26 00:54:39


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