Q261
Open questionIn septic tanks, decomposition of organic bacteria, is done by
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Civil Engineering · all questionsWaste Water Engineering
Waste Water Engineering
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Q262
Open questionPick up the correct statement from the following:
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Q263
Open questionPick up the incorrect statement from the following:
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Q264
Open questionThe angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is
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Q265
Open questiondepends upon The Chezy’s constant C in the formula V = C
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Q266
Open questionIf the over land flow from the critical point to the drain is 8 km and the difference in level is 12.4 m, the inlet time is
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Q267
Open questionIf the length of overland flow from the critical point to the mouth of drain is 13.58 km and difference in level between the critical point and drain mouth is 10 m, the inlet time is
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Q268
Open questionThe reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is
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Q269
Open questionThe sewer pipes
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Q270
Open questionThe detention time (t) of a settling tank, may be defined as the time required for
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Q271
Open questionWhich one of the following tests is used for testing sewer pipes?
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Q272
Open questionPick up the correct statement from the following:
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Q273
Open questionPick up the incorrect statement from the following:
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Q274
Open questionAerobic activity is maximum
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Q275
Open questionDuring preliminary treatment of a sewage
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Q276
Open questionBoussinesq’s equation for ascertaining unit pressure at a depth on sewers due to traffic loads, is
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Q277
Open questionTraps
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Q278
Open questionIn sewage having fully oxidised organic matter, the nitrogen exists in the form of
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Q279
Open questionIn sewers the highest non-scouring velocity is achieved in
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Q280
Open questionIf the pH value of sewage is 7
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