1. Point A on a triangulation survey has the following angle measurements (degrees-minutes- seconds): 47-10-33; 62-31-43; 250-17-29. The error in the measurement is equal to: a) -15" c) +5" 2. Point A on a triangulation survey has the following angle measurements (degrees-minutes- seconds): 47-10-33; 62-31-43; 250-17-29. The adjusted value of the smallest angle is equal to: a) 47-10-18 c) 47-10-38 3. Sides of a triangle ABC taken from a trilateration data are as follows: AB = 363.626m; BC = 418.061m; and AC = 479.621m. If AB is due east, determine the bearing of BC. b) +15" d) -5" b) 47-10-48 d) 47-10-28

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Errors in surveying

An error in surveying is defined as the difference between two or more values of an identical quantity. However, the estimates are never accurate and there will always be a degree of variability regardless of the research tool or method used. These differences are known as errors that need to be reduced or eliminated to maintain certain levels of accuracy. Even if you carefully follow the prescribed test procedures, the considerations may contain errors.