opsc.gov.inopsc.gov.in/Attachment/OCS_2011_PRELIMS/OCS_PRELIM... · 3. The volume of earthwork in...
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opsc.gov.inopsc.gov.in/Attachment/OCS_2011_PRELIMS/OCS_PRELIM... · 3. The volume of earthwork in land levelling is calculated by end area method or prismoidal method. What is the