Environmental Engineering
The self cleansing velocity for all sewers in India is usually

1.0 m/sec to 1.2 m/sec
Less than 1.0 m/sec
1.5 m/sec to 2.0 m/sec
3.0 m/sec to 3.5 m/sec

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering
Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters.Reason R: The sand used in slow sand filters is finer than that in rapid sand filtersSelect your answer based on the coding system given below:

Both A and R is true and R is the correct explanation of A
A is false but R is true
Both A and R is true but R is not the correct explanation of A
A is true but R is false

ANSWER DOWNLOAD EXAMIANS APP