Civil Engineering :: Surveying
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A bearing of a line is also known as
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True meridians are generally preferred to magnetic meridians because
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Pick up the correct statement from the following :
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If θ is the slope of the ground and l is the measured distance, the correction is
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The most reliable method of plotting a theodolite traverse, is
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The difference of level between a point below the plane of sight and one above, is the sum of two staff readings and an error would be produced equal to
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Offsets are measured with an accuracy of 1 in 40. If the point on the paper from both sources of error (due to angular and measurement errors) is not to exceed 0.05 cm on a scale of 1 cm = 20 m, the maximum length of offset should be limited to
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The probable error of the adjusted bearing at the middle is
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The bearings of the lines AB and BC are 146° 30' and 68° 30'. The included angle ABC is
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For a closed traverse the omitted measurements may be calculated
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