Surveying
Which of the following errors is not eliminated by the method of repetition of horizontal angle measurement ?

error due to eccentricity of verniers
error due to wrong adjustment of line of collimation and trunnion axis
error due to displacement of station signals
error due to inaccurate graduation

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Surveying
Pick up the incorrect statement from the following. In a spherical triangle

Every angle is less than two right angles
Sum of the three angles is equal to two right angles
Sum of the three angles less than six right angles and greater than two right angles
Sum of any two sides is greater than the third

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