blä 4 A datum surface in levelling is a vertical surface. level surface. horizontal surface. non of the above. bläi 4 * Balancing of sights mean making fore sight reading equal to back sight reading. making the line of collimation horizontal. making the distance of fore sight station equal to that of the back sight station from the instrument station. taking fore sight and back sight readings at the same station.

blä 4 A datum surface in levelling is a vertical surface. level surface. horizontal surface. non of the above. bläi 4 * Balancing of sights mean making fore sight reading equal to back sight reading. making the line of collimation horizontal. making the distance of fore sight station equal to that of the back sight station from the instrument station. taking fore sight and back sight readings at the same station.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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If the back sight reading at point A is Less than the fore sight reading at point B then * B is higher than A height of the instrument is required to know which point is higher. A is higher than B. instrument position is required to know which point is higher.
Balancing of sights mean making fore sight reading equal to back sight reading. making the line of collimation horizontal. making the distance of fore sight station equal to that of the back sight station from the instrument station. taking fore sight and back sight readings at the same station.
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