- Sedimentation tank
- Circular clarifier
- Mechanical flocculation
- Chemical coagulation
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Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about?
Answer: Option 2 Let'
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The capacity of a classifier in 'tons of solid/hr' is given by (where, A = cross-sectional area, m² V = rising velocity of fluid, m/sec.S = percentage of solids in the suspension by volume.ρ = density of solids, kg/m³)?
Answer: Option 1 Let'
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Direction : Two statements I and II are given. These statement may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statements. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Mark answer : I. There is increase in water level of all the water tanks supplying drinking water to the city during the last fortnight. II. Most of the trains were cancelled last week due to water-logging on the tracks.?
Answer: Option 5 The problems discussed in both the statements are clearly the result of heavy downpour in the area.
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Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is?
Answer: Option 1 Let'
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Which is the most practical and economical method for removal of suspended solid matter from polluted water?
Answer: Option 1 Let'
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Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas?
Answer: Option 3 Let'
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'Particulate' air pollutants are finely divided solids and liquids. Which of the following is not a 'particulate'?
Answer: Option 4 Let'
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Which of the following fine dust removal equipments is the most efficient?
Answer: Option 3 Let'
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Which of the following is the most suitable filter for separation of abrasive solids suspended in a corrosive liquid?
Answer: Option 3 Let'
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Natural rubber is obtained from latex, which is a colloidal dispersion of rubber in water. Which of the following is used as a coagulant in latex?
Answer: Option 3 Let'
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