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Question
What is main difference between direct circulation drilling and reverse circulation drilling?
Answer In straight circulation drilling and reverse circulation drilling, major difference in drilling system is related to direction of movement of drilling fluid. In direct circulation drilling, drilling fluid is circulated from drill stem and then flows up the annulus between outside of drill stem and borehole wall. Drilling fluid that carries drill cuttings flows to surface and subsequent settlement pits. Pumps are working to lift cuttings free fluid back to drill stem.
Q. What do you mean by M A S Accounts? This stands for material at site account. This is a suspense head of account that is maintained to watch actual consumption of materials
Q. Fire resistance of steelwork Because of the high thermal conductivity of steel, temperature of unprotected steel is almost the same as temperature of fire. Because the yiel
Primary effluent wastewater at 60 o F (v = 1.217 x 10 -5 ) is pumped to the top of a trickling filter (TF) a total of 75 vertical feet through schedule-40 welded steel pipe. The fl
Q. What is Venturimeter? The Venturimeter is an apparatus for finding out the discharge of a liquid flowing in a pipe . A Venturimeter in its simplest from consist of the follo
How to calculate the total loss of prestress As a general guide, it may be taken that total loss of prestress may be in the range of 20 to 25 percent of the initial prestress,
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this is our final year project .please help me to guide about it
after formation of the soil under raft some area around the lift pit for example will be on tipping shape and some column placed in the same area the question how we place the col
what is the procedure for gsb proctor test for matrial sampling for lab density
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