@engineersdesign: Surveying Made Easy: BM + BS = HI | Calculate RL in 30 Seconds! Learn the most basic and important calculation in Surveying! In this 30-second tutorial, I explain the Height of Instrument (HI) Method. Formulas Covered: BM + BS = HI (Height of Instrument) HI - IS = RL (Reduced Level) HI - FS = RL #CivilEngineering #Surveying #LandSurveying #AutoLevel #leveling

Qaisar Malik

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Region: PK

Friday 16 October 2026 17:10:02 GMT