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Q3071
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What is the name of level designated as self aligning level?
Q3072
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Which column is used, the first entry in the level book page?
Q3073
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Which branch of surveying deals with the measurements in vertical plane?
Q3074
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Which line is normal to plumb line at all points?
Q3075
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What bench mark is established for short duration such as at the end of a days work?