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CG Vyapam_CE Environmental Quiz-3
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Question 1
Which of the following processes of softening water may require recarbonation?
Question 2
Which is the best and most effective method for the removal of organic contaminant present in the polluted water in very small quantity
(< 200 mg/liter)?
Question 3
The question consists of two statements; one labelled as 'Assertion (A)' and the other as 'Reason (R)’:
Assertion (A): Tapered flocculation is more efficient when compared to the conventional process of flocculation.
Reason (R): In tapered flocculation, the velocity gradient at the inlet is less than that at the outlet of the flocculation unit.
Examine the above two statements carefully and select the correct answer from the option given below :
Question 4
When chlorine is added beyond the break-point, the process of treating the water is known as
Question 5
The ratio of the yield of water from a rapid sand filter to that from a slow sand filter is
Question 6
If its diameter is 3.6 x 10-3 cm and Specific gravity of particle G = 2.7 and viscosity
then the settling velocity of the particle will be
![](https://gradeup-question-images.grdp.co/liveData/PROJ79702/1621493031582539.png)
Question 7
The maximum daily demand of a city is 18 x 105 m3/dayand the rate of filtration is 30 per litre per hour per m2. What is the area of the filter?
Question 8
12 Million litre water is to be chlorinated per day in clear water reservoir (CWR) with 0.8 mg/l chlorine dose with a providing contact time of 30 minutes. The required CWR capacity is nearly
Question 9
Order 4 disinfectants in increasing order of their disinfection power?
Question 10
Rapid sand filter can remove turbidity from water to an extent of
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AE & JE ExamsMay 9AE & JE Exams