SSC JE Civil 14 Nov 2022 Shift 1 Solved Paper
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Question : 186 of 200
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Which of the following statements regarding, the measurement of horizontal angles by theodolite are correct?
i. Errors due to adjustments of the line of collimation and the trunnion axis are eliminated by taking both face readings.
ii. Errors due to eccentricity of verniers and centers are eliminated by taking both face readings.
iii. Closing the horizon is a process related to the reiteration method of measurement of horizontal angle.
iv. In closing the horizon process, the sum of angles is taken. This sum must be equal to 540°.
i. Errors due to adjustments of the line of collimation and the trunnion axis are eliminated by taking both face readings.
ii. Errors due to eccentricity of verniers and centers are eliminated by taking both face readings.
iii. Closing the horizon is a process related to the reiteration method of measurement of horizontal angle.
iv. In closing the horizon process, the sum of angles is taken. This sum must be equal to 540°.
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