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Explain the Typical Wastewater Characteristics?
Total Suspended Solids = 100 - 350 mg/L (200 mg/l is the typical value)
BOD5 = 100-300 mg/L (200 mg/L is the typical value)
33% of the total solids (ST) are suspended (60% of these suspended solids are settle able and 40% are colloidal) and 67% are dissolved.
Total Solids (ST) = Fixed or Inorganic Solids (SF or SI) + Organic or Volatile Solids (SV or SO)
The solids removed during primary and secondary treatment are referred to as sludge (high solids concentration).
Explain Flocculation Most important factor effecting particle removal efficiency objective - to bring particles into contact so that they will collide, stick together
State the effect of the induction of the pre-stresses The net effect of the induction of the pre-stresses shall be to decrease the tensile stresses (produced due to the exte
Total loss of prestress The total amount of losses of prestresses may be accounted for in a prestressed concrete member by adding different losses which may take place for tha
Q. How can you design Side Slope of bank? Angle of bank should be flatter than angle of repose of pitching material. Angle of repose of sand is 2:1 while that of stone is about
Q. Explain Condition Rating Number? 1. A Condition which warrants rebuilding / re-habilitation immediately. 2. A Condition which requires rebuilding / re-habilitation on pro
solving problems with their answer
Describe the two fundamental purpose of surveying.
After measuring the anticipated traffic for the bridge, cement/reinforced- with- rebar stanchions are spaced over the freeway to accommodate the bridge. An 'off-ramp' from the free
channel section-design of simple section
Q. Specification of Water bound macadam road? Formation - The embankment for road shall be made to the cross section shown on the drawing. The bank shall be raised in regular
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