question archive Height of instrument (HI) is measured from the benchmark where the datum is located a few meters below the benchmark
Subject:Civil EngineeringPrice:2.86 Bought8
Height of instrument (HI) is measured from the benchmark where the datum is located a few meters below the benchmark.
True
False
In differential levelling, the dumpy level must be exactly situated in the middle of the two points of observation.
True
False
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