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

Define radiography - underwater inspection of bridge, Define Radiography - ...

Define Radiography - Underwater Inspection of Bridge? Radiographic non-destructive examination of components is based on the phenomenon that materials absorb radiation energy a

Explain the activitated sludge (aeration tank), Explain the Activitated Slu...

Explain the Activitated Sludge (Aeration Tank)? The activated sludge treatment process is a biochemical oxidation process. Organic solids are stabilized through the oxidation p

Airport., draw a typical layout of airport ?

draw a typical layout of airport ?

Determine the co-ordinates of grain-size distribution curve, In a hydromete...

In a hydrometer analysis, 0.5 N of soil was mixed in water to form one litre of uniform suspen- sion. The corrected hydrometer reading after a lapse of 60 min. from the start of se

#titlecivil war.., how can you know that the civil war real.

how can you know that the civil war real.

Rcc, what is the density of rcc

what is the density of rcc

Rivet, cold driven rivet

cold driven rivet

Mixture of phases, Phases are usually identifiable because of adifference i...

Phases are usually identifiable because of adifference in density which causes gravitational separation. e.g. Ice floats on water, steam rises.

What are the uses of groynes, They stop, or slow down erosion, and stop lon...

They stop, or slow down erosion, and stop long shore drift. This, though, can have bad knock-on effects somewhere near.

Concrete technology, Sir, What is the dosage limit of densifier for SF...

Sir, What is the dosage limit of densifier for SFRC concrete

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