A sewage treatment plant mainly consists of1. Screening 2. Grit removal 3. Secondary sedimentation 4. Aeration 5. primary sedimentation The correct sequence of operations is

A sewage treatment plant mainly consists of1. Screening 2. Grit remov

1.	A sewage treatment plant mainly consists of1. Screening 2. Grit removal 3. Secondary sedimentation 4. Aeration 5. primary sedimentation The correct sequence of operations is
A.	1 - 2 - 3 - 4 - 5
B.	1 - 2 - 5 - 4 - 3
C.	2 - 1 - 4 - 5 - 3
D.	2 - 1 - 4 - 3 - 5
Answer» C. 2 - 1 - 4 - 5 - 3

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A sewage treatment plant mainly consists of1. Screening 2. Grit removal 3. Secondary sedimentation 4. Aeration 5. primary sedimentation The correct sequence of operations is

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