Which of the following treatment(s) will be indicated for a rural water supply from a deep groundwater source ?1. Sedimentation.2. Alum dosage.3. Potassium permanganate dosing.4. Bleaching powder application.Select the correct answer using the codes given below :

Which of the following treatment(s) will be indicated for a rural wate

1.	Which of the following treatment(s) will be indicated for a rural water supply from a deep groundwater source ?1. Sedimentation.2. Alum dosage.3. Potassium permanganate dosing.4. Bleaching powder application.Select the correct answer using the codes given below :
A.	1, 2 and 3
B.	1, 2 and 4
C.	3 and 4
D.	4 alone
Answer» E.

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Which of the following treatment(s) will be indicated for a rural water supply from a deep groundwater source ?1. Sedimentation.2. Alum dosage.3. Potassium permanganate dosing.4. Bleaching powder application.Select the correct answer using the codes given below :

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