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Civil Engineering MCQs
Q
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 filters. Select your answer based on the coding system given below?
AA. Both a and r are true and r is the correct explanation of a
BB. Both a and r are true but r is not the correct explanation of a
CC. A is true but r is false
DD. A is false but r is true
Correct Answer:
A. A. Both a and r are true and r is the correct explanation of a