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Envt- Sewage Treatment-2-quiz

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Question 1

Match List I with List II and select the correct codes

Question 2

In solid waste management, waste utilization is achieved by

Question 3

Statement (I): Air binding is a problem associated with rapid sand filters.

Statement (II): Air binding occurs due to formation of negative head at the base of the filter.

Question 4

Sewage sickness relates to

Question 5

A stream ream has flow of 20 cumecs and BOD concentration of 10 mg/l receives the industrial waste water having flow of 1.5 cumecs and BOD

concentration of 250 mg/l. What is the BOD concentration (mg/l) of stream at downstream point of meeting of stream with industrial waste?

Question 6

A fundamental difference between sedimentation tank for water and sewage is

Question 7

Pollution potential of domestic sewage generated in a town and its industrial sewage can be compared with reference to?

Question 8

Which among the following ecosystem have inverted biomass pyramid?

Question 9

For optimum digestion, C/N ratio of the material should be between

Question 10

A grit chamber has dimensions 15m * 2.0 m * 1.0 m liquid depth has a flow of 750 m3/hr. its surface loading rate is
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Feb 1ESE & GATE CE