_1. Sometimes in leveling across topographic features such as rivers, it is difficult or may be utilized at such impossible to keep back sights and foresights short and equal. locations. _2. The most common method of determining difference in elevation, in this method a telescope with suitable magnification is used to read graduated rods held on fixed points. A horizontal line of sight within the telescope is established by means of a level vial or automatic compensator. _3. It is a leveling that consists in making rod readings on the upper, middle and lower crosshairs. _4. This leveling is useful in investigating and selecting the most economical grade, location, and depth for sewers, pipelines, tunnels, irrigation ditches, and other projects. 5. leveling is used where difficult terrain, such as mountainous areas, precludes the use of conventional differential leveling.

_1. Sometimes in leveling across topographic features such as rivers, it is difficult or may be utilized at such impossible to keep back sights and foresights short and equal. locations. _2. The most common method of determining difference in elevation, in this method a telescope with suitable magnification is used to read graduated rods held on fixed points. A horizontal line of sight within the telescope is established by means of a level vial or automatic compensator. _3. It is a leveling that consists in making rod readings on the upper, middle and lower crosshairs. _4. This leveling is useful in investigating and selecting the most economical grade, location, and depth for sewers, pipelines, tunnels, irrigation ditches, and other projects. 5. leveling is used where difficult terrain, such as mountainous areas, precludes the use of conventional differential leveling.

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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Any surveying instrument may be employed in stadia leveling as long as it can be used to measure vertical angles and is equipped with the standard cross hairs and a. an erecting eyepiece b. a compensator c. an inverting eyepiece d. stadia hairs
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