Explain the statements about the differential levelling, Civil Engineering

Assignment Help:

 

Explain the Statements about the Differential Levelling

I.  Bench mark (BM) - relatively permanent point of known elevation as indicated on the Contract drawings 

II. Back sight (BS) - a sight taken to the level rod held at a point of known elevation (either BM or TP)

III. Height of Instrument (HI) - the elevation of the line of sight of the telescope

IV. Foresight (FS) - a sight taken on any point to determine its elevation

 


Related Discussions:- Explain the statements about the differential levelling

What is n-value of standard penetration test, Define and discuss the variou...

Define and discuss the various factors that help decide the number and depth of bore holes needed for subsoil exploration. What is 'N-value' of Standard Penetration Test? How do

Explain subcritical flow and supercritical flow, Explain Subcritical flow a...

Explain Subcritical flow and Supercritical flow Subcritical flow: The depth of flow is greater than critical depth and the velocity of the fluid is slow. Also termed "tranquil"

Transportation engineering, What areb the philosophical elements of strateg...

What areb the philosophical elements of strategic planning?

Principal stresses and strains, Principal Stresses and Strains: Princi...

Principal Stresses and Strains: Principal Stresses and Strains is a very important link in the analysis of solids so as to make sure safe design of different components of str

Tests on bitumen, Tests on Bitumen: The following tests are conducted...

Tests on Bitumen: The following tests are conducted on bitumen to find its suitability as a road binder : (a) Penetration test (b) Softening Point test (c) Flash Poi

Horizontal capability of pile bents, Question For classic pile bents in...

Question For classic pile bents in marine piers, how can vertical loads related to horizontal capability of pile bents? Answer At first consider a pile bent with a top

Hydraulics, what is hydraulic grid line

what is hydraulic grid line

Find a suitable slab thickness, The continuous one-way slab shown below is ...

The continuous one-way slab shown below is loaded with a uniform service live load of 80 psf, and a superimposed dead load of 40 psf. Assume the beam width is 16" and use f'c = 5 k

Stacking of materials for building, briefly explain the stacking of materia...

briefly explain the stacking of materials in the site for general building

Poly tetra fluoro ethylene, Question Why Poly tetra fluoro ethylene (PTFE...

Question Why Poly tetra fluoro ethylene (PTFE) is usually used in sliding bearings? Answer The choice of sliding surface of bearings is of very important importance since slid

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd