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

Theory of structure, How to convert uniformly varying load to point load

How to convert uniformly varying load to point load

Three key types of reinforcement used in pre stressing, Question-What are t...

Question-What are three key types of r einforcement used in pre stressing ?   Answer- (i) Spalling reinforcement - Spalling stresses are established behind loaded

Factors affecting location decision, Factors Affecting Location Decision: ...

Factors Affecting Location Decision:   Mining, quarrying and heavy manufacturing have capital intensive facilities that are costly to build and cover large area and use large q

Mohrs circle, The state of stress at a point is given through the stress co...

The state of stress at a point is given through the stress components sx = 70 MPa, sy = 10 MPa, and txy = - 40 MPa. Using Mohr''s circle find (i) Principal stresses, and (ii) Princ

State an expression for zero air-void line, State an expression for 'zero a...

State an expression for 'zero air-void line' and illustrate the line for a specific gravity of 2.65. What are the various factors that affect the compaction of soil in the field

Concrete, what do you mean by harsh condrete mix or because of what concret...

what do you mean by harsh condrete mix or because of what concrete mix becomes harsh?

Poisson distribution function, Poisson distribution function: Let X I ...

Poisson distribution function: Let X I , X 2 , ..., X,& b e n independently and identically distributed random variables each having the same cdf F ( x ). What is the pdf of t

Slab, Design of one way slab, two way slab, circular slab, hollow slab step...

Design of one way slab, two way slab, circular slab, hollow slab step by step as ACI code 318-08, tnx

How the water table may rise to the ground surface, State the size of a squ...

State the size of a square footing at the ground level to transmit a load of 900 kN in sand weighing 18 kN/m 3 and having an angle of shearing resistance of 36° (N  = 46, Nq = 43)

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