RGUHS Karnataka PGET 2011 – MCQ 180
180. In a slow sand filter, the element responsible for yielding bacteria free water is the
a) Valve
b) Vital layer
c) Supernatant water
d) Under-drainage system
Correct answer : b) Vital layer
180. In a slow sand filter, the element responsible for yielding bacteria free water is the
a) Valve
b) Vital layer
c) Supernatant water
d) Under-drainage system
Correct answer : b) Vital layer